diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1dc80239..f0d1ba0c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -41,6 +41,7 @@ workflows:
       - coverage:
           requires:
             - build
+      - faucet-docker
 
 jobs:
   build:
@@ -144,9 +145,13 @@ jobs:
       - run:
           name: Start socket server
           command: ./scripts/socketserver/start.sh
+      - run:
+          name: Start http server
+          command: ./scripts/httpserver/start.sh
       - run:
           name: Run tests
           environment:
+            HTTPSERVER_ENABLED: 1
             TENDERMINT_ENABLED: 1
             SOCKETSERVER_ENABLED: 1
             SKIP_BUILD: 1
@@ -165,6 +170,7 @@ jobs:
           name: Run CLI examples
           working_directory: packages/cli
           environment:
+            HTTPSERVER_ENABLED: 1
             TENDERMINT_ENABLED: 1
             SOCKETSERVER_ENABLED: 1
             SKIP_BUILD: 1
@@ -176,6 +182,7 @@ jobs:
       - run:
           name: Stop chains
           command: |
+            ./scripts/httpserver/stop.sh
             ./scripts/socketserver/stop.sh
             ./scripts/tendermint/all_stop.sh
             ./scripts/<< parameters.simapp >>/stop.sh
@@ -264,8 +271,12 @@ jobs:
       - run:
           name: Start socket server
           command: ./scripts/socketserver/start.sh
+      - run:
+          name: Start http server
+          command: ./scripts/httpserver/start.sh
       - run:
           environment:
+            HTTPSERVER_ENABLED: 1
             SIMAPP42_ENABLED: 1
             SLOW_SIMAPP42_ENABLED: 1
             TENDERMINT_ENABLED: 1
@@ -284,6 +295,7 @@ jobs:
           name: Run CLI examples
           working_directory: packages/cli
           environment:
+            HTTPSERVER_ENABLED: 1
             SIMAPP42_ENABLED: 1
             SLOW_SIMAPP42_ENABLED: 1
             TENDERMINT_ENABLED: 1
@@ -294,6 +306,7 @@ jobs:
       - run:
           name: Stop chains
           command: |
+            ./scripts/httpserver/stop.sh
             ./scripts/socketserver/stop.sh
             ./scripts/tendermint/all_stop.sh
             ./scripts/simapp42/stop.sh
@@ -375,8 +388,12 @@ jobs:
       - run:
           name: Start socket server
           command: ./scripts/socketserver/start.sh
+      - run:
+          name: Start http server
+          command: ./scripts/httpserver/start.sh
       - run:
           environment:
+            HTTPSERVER_ENABLED: 1
             SIMAPP42_ENABLED: 1
             SLOW_SIMAPP42_ENABLED: 1
             TENDERMINT_ENABLED: 1
@@ -387,6 +404,7 @@ jobs:
       - run:
           name: Stop chains
           command: |
+            ./scripts/httpserver/stop.sh
             ./scripts/socketserver/stop.sh
             ./scripts/tendermint/all_stop.sh
             ./scripts/simapp42/stop.sh
@@ -467,8 +485,12 @@ jobs:
       - run:
           name: Start socket server
           command: ./scripts/socketserver/start.sh
+      - run:
+          name: Start http server
+          command: ./scripts/httpserver/start.sh
       - run:
           environment:
+            HTTPSERVER_ENABLED: 1
             SIMAPP42_ENABLED: 1
             SLOW_SIMAPP42_ENABLED: 1
             TENDERMINT_ENABLED: 1
@@ -482,6 +504,7 @@ jobs:
       - run:
           name: Stop chains
           command: |
+            ./scripts/httpserver/stop.sh
             ./scripts/socketserver/stop.sh
             ./scripts/tendermint/all_stop.sh
             ./scripts/simapp42/stop.sh
@@ -573,3 +596,32 @@ jobs:
       - run:
           name: Format shell scripts
           command: yarn format-shell
+  faucet-docker:
+    docker:
+      - image: cimg/go:1.17.8
+    steps:
+      - run:
+          name: Install Git Large File Storage (LFS)
+          command: |
+            sudo apt update
+            sudo apt install git-lfs
+      - checkout
+      - setup_remote_docker:
+          # >= v20.10 https://wiki.alpinelinux.org/wiki/Release_Notes_for_Alpine_3.14.0#faccessat2
+          version: 20.10.11
+      - run:
+          name: Build faucet Docker image
+          # Use ${CIRCLE_TAG}
+          command: |
+            docker build --pull -t "confio/faucet:$CIRCLE_SHA1" -f packages/faucet/Dockerfile .
+      - run:
+          name: Check docker image can be executed
+          command: |
+            docker run --rm "confio/faucet:$CIRCLE_SHA1" version
+            docker run --rm "confio/faucet:$CIRCLE_SHA1" generate
+      # - run:
+      #     name: Push image to Docker Hub
+      #     command: |
+      #       docker login --password-stdin -u "$DOCKER_USER" \<<<"$DOCKER_PASS"
+      #       docker push "confio/faucet:$CIRCLE_SHA1"
+      #       docker logout
diff --git a/.pnp.cjs b/.pnp.cjs
index ffcda06e..41706e65 100755
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -3445,7 +3445,9 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
             ["ses", "npm:0.11.1"],
             ["source-map-support", "npm:0.5.19"],
             ["ts-node", "virtual:4f1584ad4aba8733a24be7c8aebbffafef25607f2d00f4b314cf96717145c692763628a31c2b85d4686fbb091ff21ebffa3cc337399c042c19a32b9bdb786464#npm:8.10.2"],
-            ["typescript", "patch:typescript@npm%3A4.4.4#~builtin<compat/typescript>::version=4.4.4&hash=ddd1e8"]
+            ["typescript", "patch:typescript@npm%3A4.4.4#~builtin<compat/typescript>::version=4.4.4&hash=ddd1e8"],
+            ["webpack", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:5.37.1"],
+            ["webpack-cli", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:4.7.0"]
           ],
           "linkType": "SOFT",
         }]
@@ -5226,6 +5228,23 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           ],
           "linkType": "HARD",
         }],
+        ["virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.0.3", {
+          "packageLocation": "./.yarn/__virtual__/@webpack-cli-configtest-virtual-af67a62b82/0/cache/@webpack-cli-configtest-npm-1.0.3-b6e357f778-4efcca159e.zip/node_modules/@webpack-cli/configtest/",
+          "packageDependencies": [
+            ["@webpack-cli/configtest", "virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.0.3"],
+            ["@types/webpack", null],
+            ["@types/webpack-cli", null],
+            ["webpack", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:5.37.1"],
+            ["webpack-cli", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:4.7.0"]
+          ],
+          "packagePeers": [
+            "@types/webpack-cli",
+            "@types/webpack",
+            "webpack-cli",
+            "webpack"
+          ],
+          "linkType": "HARD",
+        }],
         ["virtual:3f2095d1b1ae86c3528b28bd8410f4d8bf5f6047b5402e111275cdabf96cfed69de5749998e5371b82993388087e5eee4fbc64b5a88b9a1f7cccaf495cab5b18#npm:1.0.3", {
           "packageLocation": "./.yarn/__virtual__/@webpack-cli-configtest-virtual-a2633f5f35/0/cache/@webpack-cli-configtest-npm-1.0.3-b6e357f778-4efcca159e.zip/node_modules/@webpack-cli/configtest/",
           "packageDependencies": [
@@ -5464,6 +5483,20 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           ],
           "linkType": "HARD",
         }],
+        ["virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.2.4", {
+          "packageLocation": "./.yarn/__virtual__/@webpack-cli-info-virtual-6c0587bf6e/0/cache/@webpack-cli-info-npm-1.2.4-e4a2135f37-4e27ccd04c.zip/node_modules/@webpack-cli/info/",
+          "packageDependencies": [
+            ["@webpack-cli/info", "virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.2.4"],
+            ["@types/webpack-cli", null],
+            ["envinfo", "npm:7.8.1"],
+            ["webpack-cli", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:4.7.0"]
+          ],
+          "packagePeers": [
+            "@types/webpack-cli",
+            "webpack-cli"
+          ],
+          "linkType": "HARD",
+        }],
         ["virtual:3f2095d1b1ae86c3528b28bd8410f4d8bf5f6047b5402e111275cdabf96cfed69de5749998e5371b82993388087e5eee4fbc64b5a88b9a1f7cccaf495cab5b18#npm:1.2.4", {
           "packageLocation": "./.yarn/__virtual__/@webpack-cli-info-virtual-eea32a6276/0/cache/@webpack-cli-info-npm-1.2.4-e4a2135f37-4e27ccd04c.zip/node_modules/@webpack-cli/info/",
           "packageDependencies": [
@@ -5678,6 +5711,23 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           ],
           "linkType": "HARD",
         }],
+        ["virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.4.0", {
+          "packageLocation": "./.yarn/__virtual__/@webpack-cli-serve-virtual-0fc3f02bbe/0/cache/@webpack-cli-serve-npm-1.4.0-1f566be693-0b063bed4c.zip/node_modules/@webpack-cli/serve/",
+          "packageDependencies": [
+            ["@webpack-cli/serve", "virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.4.0"],
+            ["@types/webpack-cli", null],
+            ["@types/webpack-dev-server", null],
+            ["webpack-cli", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:4.7.0"],
+            ["webpack-dev-server", null]
+          ],
+          "packagePeers": [
+            "@types/webpack-cli",
+            "@types/webpack-dev-server",
+            "webpack-cli",
+            "webpack-dev-server"
+          ],
+          "linkType": "HARD",
+        }],
         ["virtual:3f2095d1b1ae86c3528b28bd8410f4d8bf5f6047b5402e111275cdabf96cfed69de5749998e5371b82993388087e5eee4fbc64b5a88b9a1f7cccaf495cab5b18#npm:1.4.0", {
           "packageLocation": "./.yarn/__virtual__/@webpack-cli-serve-virtual-cea108c2e7/0/cache/@webpack-cli-serve-npm-1.4.0-1f566be693-0b063bed4c.zip/node_modules/@webpack-cli/serve/",
           "packageDependencies": [
@@ -11703,6 +11753,25 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           ],
           "linkType": "HARD",
         }],
+        ["virtual:536c20e6941e891928359308cc16b72093d0e0da0f443beba2054a9e2598b09efad7e1c132d847c30f74367ac51b448379359520939be6472541db64ca7607cb#npm:5.1.2", {
+          "packageLocation": "./.yarn/__virtual__/terser-webpack-plugin-virtual-ecdde3d019/0/cache/terser-webpack-plugin-npm-5.1.2-59f409825a-0eb0e81f52.zip/node_modules/terser-webpack-plugin/",
+          "packageDependencies": [
+            ["terser-webpack-plugin", "virtual:536c20e6941e891928359308cc16b72093d0e0da0f443beba2054a9e2598b09efad7e1c132d847c30f74367ac51b448379359520939be6472541db64ca7607cb#npm:5.1.2"],
+            ["@types/webpack", null],
+            ["jest-worker", "npm:26.6.2"],
+            ["p-limit", "npm:3.1.0"],
+            ["schema-utils", "npm:3.0.0"],
+            ["serialize-javascript", "npm:5.0.1"],
+            ["source-map", "npm:0.6.1"],
+            ["terser", "npm:5.7.0"],
+            ["webpack", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:5.37.1"]
+          ],
+          "packagePeers": [
+            "@types/webpack",
+            "webpack"
+          ],
+          "linkType": "HARD",
+        }],
         ["virtual:5e82fc811d8fd02f05149cd66fb79c02f16f05bfaf043b01e108813bc4e39a600f5a9f93ce3a86bd2c21b92c8082c2e5b50384c76a2fc4e252d186976e3055e2#npm:5.1.2", {
           "packageLocation": "./.yarn/__virtual__/terser-webpack-plugin-virtual-1be69a9933/0/cache/terser-webpack-plugin-npm-5.1.2-59f409825a-0eb0e81f52.zip/node_modules/terser-webpack-plugin/",
           "packageDependencies": [
@@ -12441,6 +12510,42 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           ],
           "linkType": "HARD",
         }],
+        ["virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:5.37.1", {
+          "packageLocation": "./.yarn/__virtual__/webpack-virtual-536c20e694/0/cache/webpack-npm-5.37.1-1e75a59f6f-572d3cd617.zip/node_modules/webpack/",
+          "packageDependencies": [
+            ["webpack", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:5.37.1"],
+            ["@types/eslint-scope", "npm:3.7.0"],
+            ["@types/estree", "npm:0.0.47"],
+            ["@types/webpack-cli", null],
+            ["@webassemblyjs/ast", "npm:1.11.0"],
+            ["@webassemblyjs/wasm-edit", "npm:1.11.0"],
+            ["@webassemblyjs/wasm-parser", "npm:1.11.0"],
+            ["acorn", "npm:8.2.4"],
+            ["browserslist", "npm:4.16.6"],
+            ["chrome-trace-event", "npm:1.0.3"],
+            ["enhanced-resolve", "npm:5.8.2"],
+            ["es-module-lexer", "npm:0.4.1"],
+            ["eslint-scope", "npm:5.1.1"],
+            ["events", "npm:3.3.0"],
+            ["glob-to-regexp", "npm:0.4.1"],
+            ["graceful-fs", "npm:4.2.6"],
+            ["json-parse-better-errors", "npm:1.0.2"],
+            ["loader-runner", "npm:4.2.0"],
+            ["mime-types", "npm:2.1.30"],
+            ["neo-async", "npm:2.6.2"],
+            ["schema-utils", "npm:3.0.0"],
+            ["tapable", "npm:2.2.0"],
+            ["terser-webpack-plugin", "virtual:536c20e6941e891928359308cc16b72093d0e0da0f443beba2054a9e2598b09efad7e1c132d847c30f74367ac51b448379359520939be6472541db64ca7607cb#npm:5.1.2"],
+            ["watchpack", "npm:2.2.0"],
+            ["webpack-cli", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:4.7.0"],
+            ["webpack-sources", "npm:2.2.0"]
+          ],
+          "packagePeers": [
+            "@types/webpack-cli",
+            "webpack-cli"
+          ],
+          "linkType": "HARD",
+        }],
         ["virtual:4f1584ad4aba8733a24be7c8aebbffafef25607f2d00f4b314cf96717145c692763628a31c2b85d4686fbb091ff21ebffa3cc337399c042c19a32b9bdb786464#npm:5.37.1", {
           "packageLocation": "./.yarn/__virtual__/webpack-virtual-830f2cc1c2/0/cache/webpack-npm-5.37.1-1e75a59f6f-572d3cd617.zip/node_modules/webpack/",
           "packageDependencies": [
@@ -12972,6 +13077,48 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           ],
           "linkType": "HARD",
         }],
+        ["virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:4.7.0", {
+          "packageLocation": "./.yarn/__virtual__/webpack-cli-virtual-3ea0c3d01a/0/cache/webpack-cli-npm-4.7.0-cb3d7c34ff-cecfb321b9.zip/node_modules/webpack-cli/",
+          "packageDependencies": [
+            ["webpack-cli", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:4.7.0"],
+            ["@discoveryjs/json-ext", "npm:0.5.3"],
+            ["@types/webpack", null],
+            ["@types/webpack-bundle-analyzer", null],
+            ["@types/webpack-cli__generators", null],
+            ["@types/webpack-cli__migrate", null],
+            ["@types/webpack-dev-server", null],
+            ["@webpack-cli/configtest", "virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.0.3"],
+            ["@webpack-cli/generators", null],
+            ["@webpack-cli/info", "virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.2.4"],
+            ["@webpack-cli/migrate", null],
+            ["@webpack-cli/serve", "virtual:3ea0c3d01a91f33f2b24b3c62295ba50dc5ef053f064cdf07af43c620c6676ffb7047384e94d8051c46c3fcde0c51e60e90f847a877a41fe8c439f2527308476#npm:1.4.0"],
+            ["colorette", "npm:1.2.2"],
+            ["commander", "npm:7.2.0"],
+            ["execa", "npm:5.0.0"],
+            ["fastest-levenshtein", "npm:1.0.12"],
+            ["import-local", "npm:3.0.2"],
+            ["interpret", "npm:2.2.0"],
+            ["rechoir", "npm:0.7.0"],
+            ["v8-compile-cache", "npm:2.3.0"],
+            ["webpack", "virtual:45dc8d177c5463b02ae2b62c45461f6704449bac45b0b4bf10ceca81013a617a6fa5aaf2547e43076d50ac57cad5c9979a6da6e8adf35b42d844e73e8c014613#npm:5.37.1"],
+            ["webpack-bundle-analyzer", null],
+            ["webpack-dev-server", null],
+            ["webpack-merge", "npm:5.7.3"]
+          ],
+          "packagePeers": [
+            "@types/webpack-bundle-analyzer",
+            "@types/webpack-cli__generators",
+            "@types/webpack-cli__migrate",
+            "@types/webpack-dev-server",
+            "@types/webpack",
+            "@webpack-cli/generators",
+            "@webpack-cli/migrate",
+            "webpack-bundle-analyzer",
+            "webpack-dev-server",
+            "webpack"
+          ],
+          "linkType": "HARD",
+        }],
         ["virtual:4f1584ad4aba8733a24be7c8aebbffafef25607f2d00f4b314cf96717145c692763628a31c2b85d4686fbb091ff21ebffa3cc337399c042c19a32b9bdb786464#npm:4.7.0", {
           "packageLocation": "./.yarn/__virtual__/webpack-cli-virtual-0dffb89908/0/cache/webpack-cli-npm-4.7.0-cb3d7c34ff-cecfb321b9.zip/node_modules/webpack-cli/",
           "packageDependencies": [
diff --git a/.yarn/sdks/typescript/lib/tsserver.js b/.yarn/sdks/typescript/lib/tsserver.js
index 71e35cf6..830ad9f2 100644
--- a/.yarn/sdks/typescript/lib/tsserver.js
+++ b/.yarn/sdks/typescript/lib/tsserver.js
@@ -18,6 +18,7 @@ const moduleWrapper = tsserver => {
   const pnpApi = require(`pnpapi`);
 
   const isVirtual = str => str.match(/\/(\$\$virtual|__virtual__)\//);
+  const isPortal = str => str.startsWith("portal:/");
   const normalize = str => str.replace(/\\/g, `/`).replace(/^\/?/, `/`);
 
   const dependencyTreeRoots = new Set(pnpApi.getDependencyTreeRoots().map(locator => {
@@ -44,7 +45,7 @@ const moduleWrapper = tsserver => {
       const resolved = isVirtual(str) ? pnpApi.resolveVirtual(str) : str;
       if (resolved) {
         const locator = pnpApi.findPackageLocator(resolved);
-        if (locator && dependencyTreeRoots.has(`${locator.name}@${locator.reference}`)) {
+        if (locator && (dependencyTreeRoots.has(`${locator.name}@${locator.reference}`) || isPortal(locator.reference))) {
           str = resolved;
         }
       }
@@ -60,18 +61,26 @@ const moduleWrapper = tsserver => {
           //
           // Ref: https://github.com/microsoft/vscode/issues/105014#issuecomment-686760910
           //
-          // Update Oct 8 2021: VSCode changed their format in 1.61.
+          // Update 2021-10-08: VSCode changed their format in 1.61.
           // Before | ^zip:/c:/foo/bar.zip/package.json
           // After  | ^/zip//c:/foo/bar.zip/package.json
           //
+          // Update 2022-04-06: VSCode changed the format in 1.66.
+          // Before | ^/zip//c:/foo/bar.zip/package.json
+          // After  | ^/zip/c:/foo/bar.zip/package.json
+          //
           case `vscode <1.61`: {
             str = `^zip:${str}`;
           } break;
 
-          case `vscode`: {
+          case `vscode <1.66`: {
             str = `^/zip/${str}`;
           } break;
 
+          case `vscode`: {
+            str = `^/zip${str}`;
+          } break;
+
           // To make "go to definition" work,
           // We have to resolve the actual file system path from virtual path
           // and convert scheme to supported by [vim-rzip](https://github.com/lbrayner/vim-rzip)
@@ -85,7 +94,7 @@ const moduleWrapper = tsserver => {
           // everything else is up to neovim
           case `neovim`: {
             str = normalize(resolved).replace(/\.zip\//, `.zip::`);
-            str = `zipfile:${str}`;
+            str = `zipfile://${str}`;
           } break;
 
           default: {
@@ -100,8 +109,7 @@ const moduleWrapper = tsserver => {
 
   function fromEditorPath(str) {
     switch (hostInfo) {
-      case `coc-nvim`:
-      case `neovim`: {
+      case `coc-nvim`: {
         str = str.replace(/\.zip::/, `.zip/`);
         // The path for coc-nvim is in format of /<pwd>/zipfile:/<pwd>/.yarn/...
         // So in order to convert it back, we use .* to match all the thing
@@ -111,6 +119,12 @@ const moduleWrapper = tsserver => {
           : str.replace(/^.*zipfile:/, ``);
       } break;
 
+      case `neovim`: {
+        str = str.replace(/\.zip::/, `.zip/`);
+        // The path for neovim is in format of zipfile:///<pwd>/.yarn/...
+        return str.replace(/^zipfile:\/\//, ``);
+      } break;
+
       case `vscode`:
       default: {
         return process.platform === `win32`
@@ -143,8 +157,9 @@ const moduleWrapper = tsserver => {
   let hostInfo = `unknown`;
 
   Object.assign(Session.prototype, {
-    onMessage(/** @type {string} */ message) {
-      const parsedMessage = JSON.parse(message)
+    onMessage(/** @type {string | object} */ message) {
+      const isStringMessage = typeof message === 'string';
+      const parsedMessage = isStringMessage ? JSON.parse(message) : message;
 
       if (
         parsedMessage != null &&
@@ -153,14 +168,23 @@ const moduleWrapper = tsserver => {
         typeof parsedMessage.arguments.hostInfo === `string`
       ) {
         hostInfo = parsedMessage.arguments.hostInfo;
-        if (hostInfo === `vscode` && process.env.VSCODE_IPC_HOOK && process.env.VSCODE_IPC_HOOK.match(/Code\/1\.([1-5][0-9]|60)\./)) {
-          hostInfo += ` <1.61`;
+        if (hostInfo === `vscode` && process.env.VSCODE_IPC_HOOK) {
+          if (/(\/|-)1\.([1-5][0-9]|60)\./.test(process.env.VSCODE_IPC_HOOK)) {
+            hostInfo += ` <1.61`;
+          } else if (/(\/|-)1\.(6[1-5])\./.test(process.env.VSCODE_IPC_HOOK)) {
+            hostInfo += ` <1.66`;
+          }
         }
       }
 
-      return originalOnMessage.call(this, JSON.stringify(parsedMessage, (key, value) => {
-        return typeof value === `string` ? fromEditorPath(value) : value;
-      }));
+      const processedMessageJSON = JSON.stringify(parsedMessage, (key, value) => {
+        return typeof value === 'string' ? fromEditorPath(value) : value;
+      });
+
+      return originalOnMessage.call(
+        this,
+        isStringMessage ? processedMessageJSON : JSON.parse(processedMessageJSON)
+      );
     },
 
     send(/** @type {any} */ msg) {
diff --git a/.yarn/sdks/typescript/lib/tsserverlibrary.js b/.yarn/sdks/typescript/lib/tsserverlibrary.js
index 7a2d65ea..0f7084cd 100644
--- a/.yarn/sdks/typescript/lib/tsserverlibrary.js
+++ b/.yarn/sdks/typescript/lib/tsserverlibrary.js
@@ -18,6 +18,7 @@ const moduleWrapper = tsserver => {
   const pnpApi = require(`pnpapi`);
 
   const isVirtual = str => str.match(/\/(\$\$virtual|__virtual__)\//);
+  const isPortal = str => str.startsWith("portal:/");
   const normalize = str => str.replace(/\\/g, `/`).replace(/^\/?/, `/`);
 
   const dependencyTreeRoots = new Set(pnpApi.getDependencyTreeRoots().map(locator => {
@@ -44,7 +45,7 @@ const moduleWrapper = tsserver => {
       const resolved = isVirtual(str) ? pnpApi.resolveVirtual(str) : str;
       if (resolved) {
         const locator = pnpApi.findPackageLocator(resolved);
-        if (locator && dependencyTreeRoots.has(`${locator.name}@${locator.reference}`)) {
+        if (locator && (dependencyTreeRoots.has(`${locator.name}@${locator.reference}`) || isPortal(locator.reference))) {
           str = resolved;
         }
       }
@@ -60,18 +61,26 @@ const moduleWrapper = tsserver => {
           //
           // Ref: https://github.com/microsoft/vscode/issues/105014#issuecomment-686760910
           //
-          // Update Oct 8 2021: VSCode changed their format in 1.61.
+          // Update 2021-10-08: VSCode changed their format in 1.61.
           // Before | ^zip:/c:/foo/bar.zip/package.json
           // After  | ^/zip//c:/foo/bar.zip/package.json
           //
+          // Update 2022-04-06: VSCode changed the format in 1.66.
+          // Before | ^/zip//c:/foo/bar.zip/package.json
+          // After  | ^/zip/c:/foo/bar.zip/package.json
+          //
           case `vscode <1.61`: {
             str = `^zip:${str}`;
           } break;
 
-          case `vscode`: {
+          case `vscode <1.66`: {
             str = `^/zip/${str}`;
           } break;
 
+          case `vscode`: {
+            str = `^/zip${str}`;
+          } break;
+
           // To make "go to definition" work,
           // We have to resolve the actual file system path from virtual path
           // and convert scheme to supported by [vim-rzip](https://github.com/lbrayner/vim-rzip)
@@ -85,7 +94,7 @@ const moduleWrapper = tsserver => {
           // everything else is up to neovim
           case `neovim`: {
             str = normalize(resolved).replace(/\.zip\//, `.zip::`);
-            str = `zipfile:${str}`;
+            str = `zipfile://${str}`;
           } break;
 
           default: {
@@ -100,8 +109,7 @@ const moduleWrapper = tsserver => {
 
   function fromEditorPath(str) {
     switch (hostInfo) {
-      case `coc-nvim`:
-      case `neovim`: {
+      case `coc-nvim`: {
         str = str.replace(/\.zip::/, `.zip/`);
         // The path for coc-nvim is in format of /<pwd>/zipfile:/<pwd>/.yarn/...
         // So in order to convert it back, we use .* to match all the thing
@@ -111,6 +119,12 @@ const moduleWrapper = tsserver => {
           : str.replace(/^.*zipfile:/, ``);
       } break;
 
+      case `neovim`: {
+        str = str.replace(/\.zip::/, `.zip/`);
+        // The path for neovim is in format of zipfile:///<pwd>/.yarn/...
+        return str.replace(/^zipfile:\/\//, ``);
+      } break;
+
       case `vscode`:
       default: {
         return process.platform === `win32`
@@ -143,8 +157,9 @@ const moduleWrapper = tsserver => {
   let hostInfo = `unknown`;
 
   Object.assign(Session.prototype, {
-    onMessage(/** @type {string} */ message) {
-      const parsedMessage = JSON.parse(message)
+    onMessage(/** @type {string | object} */ message) {
+      const isStringMessage = typeof message === 'string';
+      const parsedMessage = isStringMessage ? JSON.parse(message) : message;
 
       if (
         parsedMessage != null &&
@@ -153,14 +168,23 @@ const moduleWrapper = tsserver => {
         typeof parsedMessage.arguments.hostInfo === `string`
       ) {
         hostInfo = parsedMessage.arguments.hostInfo;
-        if (hostInfo === `vscode` && process.env.VSCODE_IPC_HOOK && process.env.VSCODE_IPC_HOOK.match(/Code\/1\.([1-5][0-9]|60)\./)) {
-          hostInfo += ` <1.61`;
+        if (hostInfo === `vscode` && process.env.VSCODE_IPC_HOOK) {
+          if (/(\/|-)1\.([1-5][0-9]|60)\./.test(process.env.VSCODE_IPC_HOOK)) {
+            hostInfo += ` <1.61`;
+          } else if (/(\/|-)1\.(6[1-5])\./.test(process.env.VSCODE_IPC_HOOK)) {
+            hostInfo += ` <1.66`;
+          }
         }
       }
 
-      return originalOnMessage.call(this, JSON.stringify(parsedMessage, (key, value) => {
-        return typeof value === `string` ? fromEditorPath(value) : value;
-      }));
+      const processedMessageJSON = JSON.stringify(parsedMessage, (key, value) => {
+        return typeof value === 'string' ? fromEditorPath(value) : value;
+      });
+
+      return originalOnMessage.call(
+        this,
+        isStringMessage ? processedMessageJSON : JSON.parse(processedMessageJSON)
+      );
     },
 
     send(/** @type {any} */ msg) {
diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa2e5262..2bc18d85 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,28 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Added
+
+- @cosmjs/math: Add `Decimal.zero` and `Decimal.one` ([#1110]).
+
+### Changed
+
+- @cosmjs/faucet: Docker build image is 90 % smaller now (from 500 MB to 50 MB)
+  due to build system optimizations ([#1120], [#1121]).
+- @cosmjs/cosmwasm-stargate: `CosmWasmClient.connect` and
+  `SigningCosmWasmClient.connectWithSigner` now accept custom HTTP headers
+  ([#1007])
+- @cosmjs/stargate: `StargateClient.connect` and
+  `SigningStargateClient.connectWithSigner` now accept custom HTTP headers
+  ([#1007])
+- @cosmjs/tendermint-rpc: `Tendermint34Client.connect` now accepts custom HTTP
+  headers ([#1007]).
+
+[#1007]: https://github.com/cosmos/cosmjs/issues/1007
+[#1110]: https://github.com/cosmos/cosmjs/issues/1110
+[#1120]: https://github.com/cosmos/cosmjs/pull/1120
+[#1121]: https://github.com/cosmos/cosmjs/pull/1121
+
 ## [0.28.3] - 2022-04-11
 
 ### Added
diff --git a/HACKING.md b/HACKING.md
index a8f96965..8080f2d8 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -28,7 +28,7 @@ To verify everything worked as expected, check if the testing contracts are
 correctly checked out:
 
 ```sh
-cd scripts/launchpad/contracts
+cd scripts/wasmd/contracts
 sha256sum -c checksums.sha256
 ```
 
@@ -64,13 +64,19 @@ export TENDERMINT_ENABLED=1
 ./scripts/socketserver/start.sh
 export SOCKETSERVER_ENABLED=1
 
+# Start Http server
+./scripts/httpserver/start.sh
+export HTTPSERVER_ENABLED=1
+
 # now more tests are running that were marked as "pending" before
 yarn test
 
 # And at the end of the day
+unset HTTPSERVER_ENABLED
 unset SOCKETSERVER_ENABLED
 unset TENDERMINT_ENABLED
 unset LAUNCHPAD_ENABLED
+./scripts/httpserver/stop.sh
 ./scripts/socketserver/stop.sh
 ./scripts/tendermint/all_stop.sh
 ./scripts/launchpad/stop.sh
@@ -100,6 +106,7 @@ order to avoid conflicts. Here is an overview of the ports used:
 | 1319  | wasmd LCD API         | Manual Stargate debugging       |
 | 4444  | socketserver          | @cosmjs/sockets tests           |
 | 4445  | socketserver slow     | @cosmjs/sockets tests           |
+| 5555  | httpserver            | @cosmjs/tendermint-rpc tests    |
 | 9090  | simapp gRPC           | Manual Stargate debugging       |
 | 11134 | Tendermint 0.34 RPC   | @cosmjs/tendermint-rpc tests    |
 | 26658 | simapp Tendermint RPC | Stargate client tests           |
diff --git a/packages/cli/examples/figment.ts b/packages/cli/examples/figment.ts
new file mode 100644
index 00000000..8a7592ef
--- /dev/null
+++ b/packages/cli/examples/figment.ts
@@ -0,0 +1,21 @@
+import { StargateClient } from "@cosmjs/stargate";
+
+// Network config
+const rpcEndpoint = {
+  // Note: we removed the /status patch from the examples because we use the HTTP POST API
+  url: "https://cosmoshub-4--rpc--full.datahub.figment.io/",
+  headers: {
+    "Authorization": "5195ebb0bfb7f0fe5c43409240c8b2c4",
+  }
+};
+
+// Setup client
+const client = await StargateClient.connect(rpcEndpoint);
+
+// Get some data
+const chainId = await client.getChainId();
+console.log("Chain ID:", chainId);
+const balance = await client.getAllBalances("cosmos1ey69r37gfxvxg62sh4r0ktpuc46pzjrmz29g45");
+console.log("Balances:", balance);
+
+client.disconnect();
diff --git a/packages/cli/run_examples.sh b/packages/cli/run_examples.sh
index 73dbafb2..5e301bca 100755
--- a/packages/cli/run_examples.sh
+++ b/packages/cli/run_examples.sh
@@ -17,3 +17,6 @@ if [ -n "${SIMAPP42_ENABLED:-}" ]; then
   yarn node ./bin/cosmjs-cli --init examples/stargate.ts --code "process.exit(0)"
   yarn node ./bin/cosmjs-cli --init examples/simulate.ts --code "process.exit(0)"
 fi
+
+# Disabled as this requires internet access
+# yarn node ./bin/cosmjs-cli --init examples/figment.ts --code "process.exit(0)"
diff --git a/packages/cosmwasm-stargate/src/cosmwasmclient.ts b/packages/cosmwasm-stargate/src/cosmwasmclient.ts
index e09c76e7..c308c598 100644
--- a/packages/cosmwasm-stargate/src/cosmwasmclient.ts
+++ b/packages/cosmwasm-stargate/src/cosmwasmclient.ts
@@ -23,7 +23,7 @@ import {
   TimeoutError,
   TxExtension,
 } from "@cosmjs/stargate";
-import { Tendermint34Client, toRfc3339WithNanoseconds } from "@cosmjs/tendermint-rpc";
+import { HttpEndpoint, Tendermint34Client, toRfc3339WithNanoseconds } from "@cosmjs/tendermint-rpc";
 import { assert, sleep } from "@cosmjs/utils";
 import {
   CodeInfoResponse,
@@ -89,7 +89,7 @@ export class CosmWasmClient {
   private readonly codesCache = new Map<number, CodeDetails>();
   private chainId: string | undefined;
 
-  public static async connect(endpoint: string): Promise<CosmWasmClient> {
+  public static async connect(endpoint: string | HttpEndpoint): Promise<CosmWasmClient> {
     const tmClient = await Tendermint34Client.connect(endpoint);
     return new CosmWasmClient(tmClient);
   }
diff --git a/packages/cosmwasm-stargate/src/index.ts b/packages/cosmwasm-stargate/src/index.ts
index 91ab2f30..49908b5d 100644
--- a/packages/cosmwasm-stargate/src/index.ts
+++ b/packages/cosmwasm-stargate/src/index.ts
@@ -29,3 +29,6 @@ export {
   SigningCosmWasmClientOptions,
   UploadResult,
 } from "./signingcosmwasmclient";
+
+// Re-exported because this is part of the CosmWasmClient/SigningCosmWasmClient APIs
+export { HttpEndpoint } from "@cosmjs/tendermint-rpc";
diff --git a/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts b/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
index 1e940d88..69e2d71d 100644
--- a/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
+++ b/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
@@ -30,7 +30,7 @@ import {
   SignerData,
   StdFee,
 } from "@cosmjs/stargate";
-import { Tendermint34Client } from "@cosmjs/tendermint-rpc";
+import { HttpEndpoint, Tendermint34Client } from "@cosmjs/tendermint-rpc";
 import { assert, assertDefined } from "@cosmjs/utils";
 import { MsgWithdrawDelegatorReward } from "cosmjs-types/cosmos/distribution/v1beta1/tx";
 import { MsgDelegate, MsgUndelegate } from "cosmjs-types/cosmos/staking/v1beta1/tx";
@@ -172,7 +172,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
   private readonly gasPrice: GasPrice | undefined;
 
   public static async connectWithSigner(
-    endpoint: string,
+    endpoint: string | HttpEndpoint,
     signer: OfflineSigner,
     options: SigningCosmWasmClientOptions = {},
   ): Promise<SigningCosmWasmClient> {
diff --git a/packages/faucet/Dockerfile b/packages/faucet/Dockerfile
index 5087c9e5..17962f2b 100644
--- a/packages/faucet/Dockerfile
+++ b/packages/faucet/Dockerfile
@@ -1,24 +1,32 @@
 # Confio hosts a faucet build at https://hub.docker.com/r/confio/faucet
 #
 # Build:
-#   docker build -t confio/faucet:manual -f packages/faucet/Dockerfile .
+#   docker build --pull -t confio/faucet:manual -f packages/faucet/Dockerfile .
 # Run:
 #   docker run --rm confio/faucet:manual version
+#
+# During the build step the working directory must be the repo root such that the
+# app has access to all installed dependencies.
 
 FROM node:14-alpine as build-env
 
 ADD . /app
 WORKDIR /app
 
-RUN apk add --update --no-cache alpine-sdk linux-headers build-base gcc libusb-dev python3 eudev-dev && ln -sf python3 /usr/bin/python
-RUN python3 -m ensurepip
-RUN pip3 install --no-cache --upgrade pip setuptools
+RUN apk add --update --no-cache alpine-sdk linux-headers build-base gcc libusb-dev python3 py3-pip eudev-dev
+RUN ln -sf python3 /usr/bin/python
 
 RUN yarn install && yarn run build
+RUN (cd packages/faucet && SKIP_BUILD=1 yarn pack-node)
 
-FROM node:14-alpine
-COPY --from=build-env /app /app
+# Use Alpine and install Node.js which is 50% smaller than the -alpine version of the node
+# image (53 MB including the faucet app).
+FROM alpine:3.15
+# Installs Node.js 16 (https://pkgs.alpinelinux.org/packages?name=nodejs&branch=v3.15)
+RUN apk add --update nodejs
+
+COPY --from=build-env /app/packages/faucet /app/packages/faucet
 WORKDIR /app
 
 EXPOSE 8000
-ENTRYPOINT ["yarn", "node", "/app/packages/faucet/bin/cosmos-faucet"]
+ENTRYPOINT ["/app/packages/faucet/bin/cosmos-faucet-dist"]
diff --git a/packages/faucet/bin/cosmos-faucet-dist b/packages/faucet/bin/cosmos-faucet-dist
new file mode 100755
index 00000000..6ec8dca2
--- /dev/null
+++ b/packages/faucet/bin/cosmos-faucet-dist
@@ -0,0 +1,6 @@
+#!/usr/bin/env node
+const path = require("path");
+
+// attempt to call in main file....
+const faucet = require(path.join(__dirname, "..", "dist", "node", "cli.js"));
+faucet.main(process.argv.slice(2));
diff --git a/packages/faucet/package.json b/packages/faucet/package.json
index b7ffe50c..2007b809 100644
--- a/packages/faucet/package.json
+++ b/packages/faucet/package.json
@@ -36,7 +36,8 @@
     "test": "yarn build-or-skip && yarn test-node",
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "start-dev": "FAUCET_ADDRESS_PREFIX=wasm FAUCET_CREDIT_AMOUNT_UCOSM=10000000 FAUCET_CREDIT_AMOUNT_USTAKE=100000 FAUCET_CONCURRENCY=3 FAUCET_MNEMONIC=\"economy stock theory fatal elder harbor betray wasp final emotion task crumble siren bottom lizard educate guess current outdoor pair theory focus wife stone\" ./bin/cosmos-faucet start \"http://localhost:26659\"",
-    "start-coralnet": "FAUCET_ADDRESS_PREFIX=coral FAUCET_TOKENS=\"ushell,ureef\" FAUCET_CREDIT_AMOUNT_USHELL=10000000 FAUCET_CREDIT_AMOUNT_UREEF=2000000 FAUCET_CONCURRENCY=3 FAUCET_MNEMONIC=\"economy stock theory fatal elder harbor betray wasp final emotion task crumble siren bottom lizard educate guess current outdoor pair theory focus wife stone\" ./bin/cosmos-faucet start \"https://lcd.coralnet.cosmwasm.com\""
+    "start-coralnet": "FAUCET_ADDRESS_PREFIX=coral FAUCET_TOKENS=\"ushell,ureef\" FAUCET_CREDIT_AMOUNT_USHELL=10000000 FAUCET_CREDIT_AMOUNT_UREEF=2000000 FAUCET_CONCURRENCY=3 FAUCET_MNEMONIC=\"economy stock theory fatal elder harbor betray wasp final emotion task crumble siren bottom lizard educate guess current outdoor pair theory focus wife stone\" ./bin/cosmos-faucet start \"https://lcd.coralnet.cosmwasm.com\"",
+    "pack-node": "yarn build-or-skip && webpack --mode production --config webpack.node.config.js"
   },
   "dependencies": {
     "@cosmjs/crypto": "workspace:packages/crypto",
@@ -72,6 +73,8 @@
     "ses": "^0.11.0",
     "source-map-support": "^0.5.19",
     "ts-node": "^8",
-    "typescript": "~4.4"
+    "typescript": "~4.4",
+    "webpack": "^5.32.0",
+    "webpack-cli": "^4.6.0"
   }
 }
diff --git a/packages/faucet/webpack.node.config.js b/packages/faucet/webpack.node.config.js
new file mode 100644
index 00000000..94b875c4
--- /dev/null
+++ b/packages/faucet/webpack.node.config.js
@@ -0,0 +1,21 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+const path = require("path");
+
+const target = "node";
+const distdir = path.join(__dirname, "dist", target);
+
+module.exports = [
+  {
+    target: target,
+    entry: "./build/cli.js",
+    output: {
+      path: distdir,
+      filename: "cli.js",
+      library: {
+        type: "commonjs",
+      },
+    },
+    plugins: [],
+    resolve: {},
+  },
+];
diff --git a/packages/math/src/decimal.spec.ts b/packages/math/src/decimal.spec.ts
index e12d1f96..1526c926 100644
--- a/packages/math/src/decimal.spec.ts
+++ b/packages/math/src/decimal.spec.ts
@@ -133,6 +133,50 @@ describe("Decimal", () => {
     });
   });
 
+  describe("zero", () => {
+    it("works", () => {
+      expect(Decimal.zero(0).toString()).toEqual("0");
+      expect(Decimal.zero(1).toString()).toEqual("0");
+      expect(Decimal.zero(2).toString()).toEqual("0");
+      expect(Decimal.zero(30).toString()).toEqual("0");
+
+      expect(Decimal.zero(0).fractionalDigits).toEqual(0);
+      expect(Decimal.zero(1).fractionalDigits).toEqual(1);
+      expect(Decimal.zero(2).fractionalDigits).toEqual(2);
+      expect(Decimal.zero(30).fractionalDigits).toEqual(30);
+
+      expect(Decimal.zero(0).atomics).toEqual("0");
+      expect(Decimal.zero(1).atomics).toEqual("0");
+      expect(Decimal.zero(2).atomics).toEqual("0");
+      expect(Decimal.zero(30).atomics).toEqual("0");
+
+      expect(() => Decimal.zero(NaN)).toThrowError(/Fractional digits is not an integer/i);
+      expect(() => Decimal.zero(1.2)).toThrowError(/Fractional digits is not an integer/i);
+    });
+  });
+
+  describe("one", () => {
+    it("works", () => {
+      expect(Decimal.one(0).toString()).toEqual("1");
+      expect(Decimal.one(1).toString()).toEqual("1");
+      expect(Decimal.one(2).toString()).toEqual("1");
+      expect(Decimal.one(30).toString()).toEqual("1");
+
+      expect(Decimal.one(0).fractionalDigits).toEqual(0);
+      expect(Decimal.one(1).fractionalDigits).toEqual(1);
+      expect(Decimal.one(2).fractionalDigits).toEqual(2);
+      expect(Decimal.one(30).fractionalDigits).toEqual(30);
+
+      expect(Decimal.one(0).atomics).toEqual("1");
+      expect(Decimal.one(1).atomics).toEqual("10");
+      expect(Decimal.one(2).atomics).toEqual("100");
+      expect(Decimal.one(30).atomics).toEqual("1000000000000000000000000000000");
+
+      expect(() => Decimal.one(NaN)).toThrowError(/Fractional digits is not an integer/i);
+      expect(() => Decimal.one(1.2)).toThrowError(/Fractional digits is not an integer/i);
+    });
+  });
+
   describe("toString", () => {
     it("displays no decimal point for full numbers", () => {
       expect(Decimal.fromUserInput("44", 0).toString()).toEqual("44");
diff --git a/packages/math/src/decimal.ts b/packages/math/src/decimal.ts
index 3f548e5b..6bb8a1f6 100644
--- a/packages/math/src/decimal.ts
+++ b/packages/math/src/decimal.ts
@@ -58,6 +58,28 @@ export class Decimal {
     return new Decimal(atomics, fractionalDigits);
   }
 
+  /**
+   * Creates a Decimal with value 0.0 and the given number of fractial digits.
+   *
+   * Fractional digits are not relevant for the value but needed to be able
+   * to perform arithmetic operations with other decimals.
+   */
+  public static zero(fractionalDigits: number): Decimal {
+    Decimal.verifyFractionalDigits(fractionalDigits);
+    return new Decimal("0", fractionalDigits);
+  }
+
+  /**
+   * Creates a Decimal with value 1.0 and the given number of fractial digits.
+   *
+   * Fractional digits are not relevant for the value but needed to be able
+   * to perform arithmetic operations with other decimals.
+   */
+  public static one(fractionalDigits: number): Decimal {
+    Decimal.verifyFractionalDigits(fractionalDigits);
+    return new Decimal("1" + "0".repeat(fractionalDigits), fractionalDigits);
+  }
+
   private static verifyFractionalDigits(fractionalDigits: number): void {
     if (!Number.isInteger(fractionalDigits)) throw new Error("Fractional digits is not an integer");
     if (fractionalDigits < 0) throw new Error("Fractional digits must not be negative");
diff --git a/packages/stargate/src/index.ts b/packages/stargate/src/index.ts
index 6af58edc..f3cd17f1 100644
--- a/packages/stargate/src/index.ts
+++ b/packages/stargate/src/index.ts
@@ -122,3 +122,6 @@ export {
 } from "./stargateclient";
 export { StdFee } from "@cosmjs/amino";
 export { Coin, coin, coins, makeCosmoshubPath, parseCoins } from "@cosmjs/proto-signing";
+
+// Re-exported because this is part of the StargateClient/SigningStargateClient APIs
+export { HttpEndpoint } from "@cosmjs/tendermint-rpc";
diff --git a/packages/stargate/src/signingstargateclient.ts b/packages/stargate/src/signingstargateclient.ts
index e0e13c5a..9dec3293 100644
--- a/packages/stargate/src/signingstargateclient.ts
+++ b/packages/stargate/src/signingstargateclient.ts
@@ -12,7 +12,7 @@ import {
   Registry,
   TxBodyEncodeObject,
 } from "@cosmjs/proto-signing";
-import { Tendermint34Client } from "@cosmjs/tendermint-rpc";
+import { HttpEndpoint, Tendermint34Client } from "@cosmjs/tendermint-rpc";
 import { assert, assertDefined } from "@cosmjs/utils";
 import { Coin } from "cosmjs-types/cosmos/base/v1beta1/coin";
 import { MsgWithdrawDelegatorReward } from "cosmjs-types/cosmos/distribution/v1beta1/tx";
@@ -116,7 +116,7 @@ export class SigningStargateClient extends StargateClient {
   private readonly gasPrice: GasPrice | undefined;
 
   public static async connectWithSigner(
-    endpoint: string,
+    endpoint: string | HttpEndpoint,
     signer: OfflineSigner,
     options: SigningStargateClientOptions = {},
   ): Promise<SigningStargateClient> {
diff --git a/packages/stargate/src/stargateclient.ts b/packages/stargate/src/stargateclient.ts
index 46474ed0..af3da369 100644
--- a/packages/stargate/src/stargateclient.ts
+++ b/packages/stargate/src/stargateclient.ts
@@ -2,7 +2,7 @@
 import { toHex } from "@cosmjs/encoding";
 import { Uint53 } from "@cosmjs/math";
 import { Decimal } from "@cosmjs/math";
-import { Tendermint34Client, toRfc3339WithNanoseconds } from "@cosmjs/tendermint-rpc";
+import { HttpEndpoint, Tendermint34Client, toRfc3339WithNanoseconds } from "@cosmjs/tendermint-rpc";
 import { assert, sleep } from "@cosmjs/utils";
 import { MsgData } from "cosmjs-types/cosmos/base/abci/v1beta1/abci";
 import { Coin } from "cosmjs-types/cosmos/base/v1beta1/coin";
@@ -152,7 +152,7 @@ export class StargateClient {
   private readonly accountParser: AccountParser;
 
   public static async connect(
-    endpoint: string,
+    endpoint: string | HttpEndpoint,
     options: StargateClientOptions = {},
   ): Promise<StargateClient> {
     const tmClient = await Tendermint34Client.connect(endpoint);
diff --git a/packages/tendermint-rpc/src/index.ts b/packages/tendermint-rpc/src/index.ts
index e56a3e5c..98515b4d 100644
--- a/packages/tendermint-rpc/src/index.ts
+++ b/packages/tendermint-rpc/src/index.ts
@@ -12,6 +12,10 @@ export {
   toRfc3339WithNanoseconds,
   toSeconds,
 } from "./dates";
+export {
+  // This type is part of the Tendermint34Client.connect API
+  HttpEndpoint,
+} from "./rpcclients";
 export { HttpClient, WebsocketClient } from "./rpcclients"; // TODO: Why do we export those outside of this package?
 export {
   AbciInfoRequest,
diff --git a/packages/tendermint-rpc/src/rpcclients/httpclient.spec.ts b/packages/tendermint-rpc/src/rpcclients/httpclient.spec.ts
index add473e9..1c326508 100644
--- a/packages/tendermint-rpc/src/rpcclients/httpclient.spec.ts
+++ b/packages/tendermint-rpc/src/rpcclients/httpclient.spec.ts
@@ -1,27 +1,71 @@
+/* eslint-disable @typescript-eslint/naming-convention */
 import { createJsonRpcRequest } from "../jsonrpc";
 import { defaultInstance } from "../testutil.spec";
 import { http, HttpClient } from "./httpclient";
 
 function pendingWithoutTendermint(): void {
   if (!process.env.TENDERMINT_ENABLED) {
-    pending("Set TENDERMINT_ENABLED to enable tendermint rpc tests");
+    pending("Set TENDERMINT_ENABLED to enable Tendermint RPC tests");
+  }
+}
+
+function pendingWithoutHttpServer(): void {
+  if (!process.env.HTTPSERVER_ENABLED) {
+    pending("Set HTTPSERVER_ENABLED to enable HTTP tests");
   }
 }
 
 const tendermintUrl = defaultInstance.url;
+const echoUrl = "http://localhost:5555/echo_headers";
 
 describe("http", () => {
   it("can send a health request", async () => {
     pendingWithoutTendermint();
-    const response = await http("POST", `http://${tendermintUrl}`, createJsonRpcRequest("health"));
+    const response = await http("POST", `http://${tendermintUrl}`, undefined, createJsonRpcRequest("health"));
     expect(response).toEqual(jasmine.objectContaining({ jsonrpc: "2.0" }));
   });
 
   it("errors for non-open port", async () => {
     await expectAsync(
-      http("POST", `http://localhost:56745`, createJsonRpcRequest("health")),
+      http("POST", `http://localhost:56745`, undefined, createJsonRpcRequest("health")),
     ).toBeRejectedWithError(/(ECONNREFUSED|Failed to fetch)/i);
   });
+
+  it("can send custom headers", async () => {
+    pendingWithoutHttpServer();
+    // Without custom headers
+    const response1 = await http("POST", echoUrl, undefined, createJsonRpcRequest("health"));
+    expect(response1).toEqual({
+      request_headers: jasmine.objectContaining({
+        // Basic headers from http client
+        Accept: jasmine.any(String),
+        "Content-Length": jasmine.any(String),
+        "Content-Type": "application/json",
+        Host: jasmine.any(String),
+        "User-Agent": jasmine.any(String),
+      }),
+    });
+
+    // With custom headers
+    const response2 = await http(
+      "POST",
+      echoUrl,
+      { foo: "bar123", Authorization: "Basic Z3Vlc3Q6bm9QYXNzMTIz" },
+      createJsonRpcRequest("health"),
+    );
+    expect(response2).toEqual({
+      request_headers: jasmine.objectContaining({
+        // Basic headers from http client
+        "Content-Length": jasmine.any(String),
+        "Content-Type": "application/json",
+        Host: jasmine.any(String),
+        "User-Agent": jasmine.any(String),
+        // Custom headers
+        foo: "bar123",
+        Authorization: "Basic Z3Vlc3Q6bm9QYXNzMTIz",
+      }),
+    });
+  });
 });
 
 describe("HttpClient", () => {
diff --git a/packages/tendermint-rpc/src/rpcclients/httpclient.ts b/packages/tendermint-rpc/src/rpcclients/httpclient.ts
index 293842df..0b7dedac 100644
--- a/packages/tendermint-rpc/src/rpcclients/httpclient.ts
+++ b/packages/tendermint-rpc/src/rpcclients/httpclient.ts
@@ -25,23 +25,58 @@ function filterBadStatus(res: any): any {
  * For some reason, fetch does not complain about missing server-side CORS support.
  */
 // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
-export async function http(method: "POST", url: string, request?: any): Promise<any> {
+export async function http(
+  method: "POST",
+  url: string,
+  headers: Record<string, string> | undefined,
+  request?: any,
+): Promise<any> {
   if (typeof fetch !== "undefined") {
-    const body = request ? JSON.stringify(request) : undefined;
-    return fetch(url, { method: method, body: body })
+    const settings = {
+      method: method,
+      body: request ? JSON.stringify(request) : undefined,
+      headers: {
+        // eslint-disable-next-line @typescript-eslint/naming-convention
+        "Content-Type": "application/json",
+        ...headers,
+      },
+    };
+    return fetch(url, settings)
       .then(filterBadStatus)
       .then((res: any) => res.json());
   } else {
-    return axios.request({ url: url, method: method, data: request }).then((res) => res.data);
+    return axios
+      .request({ url: url, method: method, data: request, headers: headers })
+      .then((res) => res.data);
   }
 }
 
+export interface HttpEndpoint {
+  /**
+   * The URL of the HTTP endpoint.
+   *
+   * For POST APIs like Tendermint RPC in CosmJS,
+   * this is without the method specific paths (e.g. https://cosmoshub-4--rpc--full.datahub.figment.io/)
+   */
+  readonly url: string;
+  /**
+   * HTTP headers that are sent with every request, such as authorization information.
+   */
+  readonly headers: Record<string, string>;
+}
+
 export class HttpClient implements RpcClient {
   protected readonly url: string;
+  protected readonly headers: Record<string, string> | undefined;
 
-  public constructor(url: string) {
-    // accept host.name:port and assume http protocol
-    this.url = hasProtocol(url) ? url : "http://" + url;
+  public constructor(endpoint: string | HttpEndpoint) {
+    if (typeof endpoint === "string") {
+      // accept host.name:port and assume http protocol
+      this.url = hasProtocol(endpoint) ? endpoint : "http://" + endpoint;
+    } else {
+      this.url = endpoint.url;
+      this.headers = endpoint.headers;
+    }
   }
 
   public disconnect(): void {
@@ -49,7 +84,7 @@ export class HttpClient implements RpcClient {
   }
 
   public async execute(request: JsonRpcRequest): Promise<JsonRpcSuccessResponse> {
-    const response = parseJsonRpcResponse(await http("POST", this.url, request));
+    const response = parseJsonRpcResponse(await http("POST", this.url, this.headers, request));
     if (isJsonRpcErrorResponse(response)) {
       throw new Error(JSON.stringify(response.error));
     }
diff --git a/packages/tendermint-rpc/src/rpcclients/index.ts b/packages/tendermint-rpc/src/rpcclients/index.ts
index 31cff4b0..bff29531 100644
--- a/packages/tendermint-rpc/src/rpcclients/index.ts
+++ b/packages/tendermint-rpc/src/rpcclients/index.ts
@@ -1,5 +1,5 @@
 // This folder contains Tendermint-specific RPC clients
 
-export { HttpClient } from "./httpclient";
+export { HttpClient, HttpEndpoint } from "./httpclient";
 export { instanceOfRpcStreamingClient, RpcClient, RpcStreamingClient, SubscriptionEvent } from "./rpcclient";
 export { WebsocketClient } from "./websocketclient";
diff --git a/packages/tendermint-rpc/src/rpcclients/rpcclient.spec.ts b/packages/tendermint-rpc/src/rpcclients/rpcclient.spec.ts
index c55cd751..a5fb0310 100644
--- a/packages/tendermint-rpc/src/rpcclients/rpcclient.spec.ts
+++ b/packages/tendermint-rpc/src/rpcclients/rpcclient.spec.ts
@@ -6,7 +6,7 @@ import { WebsocketClient } from "./websocketclient";
 
 function pendingWithoutTendermint(): void {
   if (!process.env.TENDERMINT_ENABLED) {
-    pending("Set TENDERMINT_ENABLED to enable tendermint rpc tests");
+    pending("Set TENDERMINT_ENABLED to enable Tendermint RPC tests");
   }
 }
 
diff --git a/packages/tendermint-rpc/src/rpcclients/websocketclient.spec.ts b/packages/tendermint-rpc/src/rpcclients/websocketclient.spec.ts
index d8496af4..8c88a450 100644
--- a/packages/tendermint-rpc/src/rpcclients/websocketclient.spec.ts
+++ b/packages/tendermint-rpc/src/rpcclients/websocketclient.spec.ts
@@ -9,7 +9,7 @@ import { WebsocketClient } from "./websocketclient";
 
 function pendingWithoutTendermint(): void {
   if (!process.env.TENDERMINT_ENABLED) {
-    pending("Set TENDERMINT_ENABLED to enable tendermint rpc tests");
+    pending("Set TENDERMINT_ENABLED to enable Tendermint RPC tests");
   }
 }
 
diff --git a/packages/tendermint-rpc/src/tendermint34/tendermint34client.ts b/packages/tendermint-rpc/src/tendermint34/tendermint34client.ts
index 05176d60..a0220eb4 100644
--- a/packages/tendermint-rpc/src/tendermint34/tendermint34client.ts
+++ b/packages/tendermint-rpc/src/tendermint34/tendermint34client.ts
@@ -4,6 +4,7 @@ import { Stream } from "xstream";
 import { createJsonRpcRequest } from "../jsonrpc";
 import {
   HttpClient,
+  HttpEndpoint,
   instanceOfRpcStreamingClient,
   RpcClient,
   SubscriptionEvent,
@@ -19,10 +20,14 @@ export class Tendermint34Client {
    *
    * Uses HTTP when the URL schema is http or https. Uses WebSockets otherwise.
    */
-  public static async connect(url: string): Promise<Tendermint34Client> {
-    const useHttp = url.startsWith("http://") || url.startsWith("https://");
-    const rpcClient = useHttp ? new HttpClient(url) : new WebsocketClient(url);
-    return Tendermint34Client.create(rpcClient);
+  public static async connect(endpoint: string | HttpEndpoint): Promise<Tendermint34Client> {
+    if (typeof endpoint === "object") {
+      return Tendermint34Client.create(new HttpClient(endpoint));
+    } else {
+      const useHttp = endpoint.startsWith("http://") || endpoint.startsWith("https://");
+      const rpcClient = useHttp ? new HttpClient(endpoint) : new WebsocketClient(endpoint);
+      return Tendermint34Client.create(rpcClient);
+    }
   }
 
   /**
diff --git a/packages/tendermint-rpc/webpack.web.config.js b/packages/tendermint-rpc/webpack.web.config.js
index 260f3154..d72c8f89 100644
--- a/packages/tendermint-rpc/webpack.web.config.js
+++ b/packages/tendermint-rpc/webpack.web.config.js
@@ -16,7 +16,10 @@ module.exports = [
       filename: "tests.js",
     },
     plugins: [
-      new webpack.EnvironmentPlugin({ TENDERMINT_ENABLED: "" }),
+      new webpack.EnvironmentPlugin({
+        HTTPSERVER_ENABLED: "",
+        TENDERMINT_ENABLED: "",
+      }),
       new webpack.ProvidePlugin({
         Buffer: ["buffer", "Buffer"],
       }),
diff --git a/scripts/httpserver/Dockerfile b/scripts/httpserver/Dockerfile
new file mode 100644
index 00000000..15971432
--- /dev/null
+++ b/scripts/httpserver/Dockerfile
@@ -0,0 +1,7 @@
+FROM python:3.9-alpine
+
+WORKDIR /usr/src/app
+
+COPY echo.py ./
+
+ENTRYPOINT ["python", "./echo.py"]
diff --git a/scripts/httpserver/echo.py b/scripts/httpserver/echo.py
new file mode 100755
index 00000000..4582d552
--- /dev/null
+++ b/scripts/httpserver/echo.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+#pylint:disable=missing-docstring,invalid-name
+
+import argparse
+from http.server import HTTPServer, BaseHTTPRequestHandler
+import json
+import sys
+
+HOST = "0.0.0.0"
+
+def log(data):
+    print(data, flush=True)
+
+class CORSRequestHandler(BaseHTTPRequestHandler):
+    def end_headers(self):
+        self.send_header("Access-Control-Allow-Methods", "POST, GET, OPTIONS")
+        self.send_header("Access-Control-Allow-Origin", "*")
+        self.send_header("Access-Control-Allow-Headers", "*")
+        BaseHTTPRequestHandler.end_headers(self)
+
+    def do_OPTIONS(self):
+        self.send_response(200)
+        self.end_headers()
+
+    def do_GET(self):
+        """Respond to a GET request."""
+        if self.path == "/echo_headers":
+            self.send_response(200)
+            self.send_header("Content-type", "text/plain")
+            self.send_header('Content-type', 'application/json')
+            self.end_headers()
+            body = {
+                "request_headers": dict(self.headers)
+            }
+            self.wfile.write(json.dumps(body, sort_keys=True).encode())
+        else:
+            self.send_response(404)
+            self.wfile.write("404. Try /echo_headers".encode())
+
+    def do_POST(self):
+        self.do_GET()
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--port",
+        help="Port to listen on",
+        type=int,
+        default=5555)
+    args = parser.parse_args()
+    httpd = HTTPServer((HOST, args.port), CORSRequestHandler)
+    log("Starting server at {}:{}".format(HOST, args.port))
+    httpd.serve_forever()
+    log("Running now.")
diff --git a/scripts/httpserver/start.sh b/scripts/httpserver/start.sh
new file mode 100755
index 00000000..95546d9b
--- /dev/null
+++ b/scripts/httpserver/start.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+set -o errexit -o nounset -o pipefail
+command -v shellcheck >/dev/null && shellcheck "$0"
+
+# Please keep this in sync with the Ports overview in HACKING.md
+DEFAULT_PORT_GUEST="5555"
+DEFAULT_PORT_HOST="5555"
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+HTTPSERVER_DIR=$(mktemp -d "${TMPDIR:-/tmp}/httpserver.XXXXXXXXX")
+export HTTPSERVER_DIR
+echo "HTTPSERVER_DIR = $HTTPSERVER_DIR"
+
+IMAGE_NAME="httpserver:local"
+CONTAINER_NAME="httpserver"
+
+LOGFILE_DEFAULT="${HTTPSERVER_DIR}/httpserver_$DEFAULT_PORT_HOST.log"
+
+docker build -t "$IMAGE_NAME" "$SCRIPT_DIR"
+
+docker run --rm \
+  --user="$UID" \
+  --name "$CONTAINER_NAME" \
+  -p "$DEFAULT_PORT_HOST:$DEFAULT_PORT_GUEST" \
+  "$IMAGE_NAME" \
+  >"$LOGFILE_DEFAULT" &
+
+# Debug start
+sleep 3
+cat "$LOGFILE_DEFAULT"
diff --git a/scripts/httpserver/stop.sh b/scripts/httpserver/stop.sh
new file mode 100755
index 00000000..74d04dcb
--- /dev/null
+++ b/scripts/httpserver/stop.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+set -o errexit -o nounset -o pipefail
+command -v shellcheck >/dev/null && shellcheck "$0"
+
+CONTAINER_NAME="httpserver"
+
+echo "Killing socketserver containers ..."
+docker container kill "$CONTAINER_NAME"
diff --git a/yarn.lock b/yarn.lock
index ffd407c2..012c6101 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -617,6 +617,8 @@ __metadata:
     source-map-support: ^0.5.19
     ts-node: ^8
     typescript: ~4.4
+    webpack: ^5.32.0
+    webpack-cli: ^4.6.0
   bin:
     cosmos-faucet: bin/cosmos-faucet
   languageName: unknown