diff --git a/app/data/compose/docker-compose-go-nitro.yml b/app/data/compose/docker-compose-go-nitro.yml
index fc051f19..5d28179b 100644
--- a/app/data/compose/docker-compose-go-nitro.yml
+++ b/app/data/compose/docker-compose-go-nitro.yml
@@ -10,11 +10,11 @@ services:
       nitro-contracts:
         condition: service_completed_successfully
     environment:
-      NITRO_CHAIN_URL: ${NITRO_CHAIN_URL:-ws://fixturenet-eth-geth-1:8546}
-      NITRO_PK: ${NITRO_PK:-2d999770f7b5d49b694080f987b82bbc9fc9ac2b4dcc10b0f8aba7d700f69c6d}
-      NITRO_CHAIN_PK: ${NITRO_CHAIN_PK:-570b909da9669b2f35a0b1ac70b8358516d55ae1b5b3710e95e9a94395090597}
-      NITRO_USE_DURABLE_STORE: ${NITRO_USE_DURABLE_STORE:-true}
-      NITRO_DURABLE_STORE_FOLDER: ${NITRO_DURABLE_STORE_FOLDER:-/app/data/nitro-store}
+      CERC_NITRO_CHAIN_URL: ${CERC_NITRO_CHAIN_URL:-ws://fixturenet-eth-geth-1:8546}
+      CERC_NITRO_PK: ${CERC_NITRO_PK:-2d999770f7b5d49b694080f987b82bbc9fc9ac2b4dcc10b0f8aba7d700f69c6d}
+      CERC_NITRO_CHAIN_PK: ${CERC_NITRO_CHAIN_PK:-570b909da9669b2f35a0b1ac70b8358516d55ae1b5b3710e95e9a94395090597}
+      CERC_NITRO_USE_DURABLE_STORE: ${CERC_NITRO_USE_DURABLE_STORE:-true}
+      CERC_NITRO_DURABLE_STORE_FOLDER: ${CERC_NITRO_DURABLE_STORE_FOLDER:-/app/data/nitro-store}
       CERC_NA_ADDRESS: ${CERC_NA_ADDRESS}
       CERC_VPA_ADDRESS: ${CERC_VPA_ADDRESS}
       CERC_CA_ADDRESS: ${CERC_CA_ADDRESS}
@@ -34,6 +34,17 @@ services:
       - "4005:4005"
       - "5005:5005"
 
+  nitro-rpc-client:
+      image: cerc/nitro-rpc-client:local
+      hostname: nitro-rpc-client
+      restart: on-failure
+      depends_on:
+        # Wait for the go-nitro node to start
+        go-nitro:
+          condition: service_healthy
+      command: ["bash", "-c", "tail -f /dev/null"]
+
+
 volumes:
   go_nitro_data:
   nitro_deployment:
diff --git a/app/data/compose/docker-compose-nitro-reverse-payment-proxy.yml b/app/data/compose/docker-compose-nitro-reverse-payment-proxy.yml
index 37f49407..bf7461a0 100644
--- a/app/data/compose/docker-compose-nitro-reverse-payment-proxy.yml
+++ b/app/data/compose/docker-compose-nitro-reverse-payment-proxy.yml
@@ -10,10 +10,10 @@ services:
       go-nitro:
         condition: service_healthy
     environment:
-      PROXY_ADDRESS: 0.0.0.0:8081
-      PROXY_NITRO_ENDPOINT: ${PROXY_NITRO_ENDPOINT:-go-nitro:4005/api/v1}
-      PROXY_DESTINATION_URL: ${PROXY_DESTINATION_URL:-http://ipld-eth-server:8081}
-      PROXY_COST_PER_BYTE: ${PROXY_COST_PER_BYTE:-1}
+      CERC_PROXY_ADDRESS: 0.0.0.0:8081
+      CERC_PROXY_NITRO_ENDPOINT: ${CERC_PROXY_NITRO_ENDPOINT:-go-nitro:4005/api/v1}
+      CERC_PROXY_DESTINATION_URL: ${CERC_PROXY_DESTINATION_URL:-http://ipld-eth-server:8081}
+      CERC_PROXY_COST_PER_BYTE: ${CERC_PROXY_COST_PER_BYTE:-1}
     entrypoint: ["bash", "-c", "/app/run-reverse-payment-proxy.sh"]
     volumes:
       - ../config/go-nitro/run-reverse-payment-proxy.sh:/app/run-reverse-payment-proxy.sh
diff --git a/app/data/compose/docker-compose-ponder.yml b/app/data/compose/docker-compose-ponder.yml
index 62d46b47..d0ea29e6 100644
--- a/app/data/compose/docker-compose-ponder.yml
+++ b/app/data/compose/docker-compose-ponder.yml
@@ -6,11 +6,11 @@ services:
     image: cerc/ponder:local
     working_dir: /app/examples/token-erc20
     environment:
-      PONDER_CHAIN_ID: ${PONDER_CHAIN_ID:-99}
-      PONDER_RPC_URL_1: ${PONDER_RPC_URL_1:-http://nitro-reverse-payment-proxy:8081}
+      CERC_PONDER_CHAIN_ID: ${PONDER_CHAIN_ID:-99}
+      CERC_PONDER_RPC_URL_1: ${PONDER_RPC_URL_1:-http://nitro-reverse-payment-proxy:8081}
       CERC_PONDER_NITRO_PK: ${CERC_PONDER_NITRO_PK:-58368d20ff12f17669c06158c21d885897aa56f9be430edc789614bf9851d53f}
       CERC_PONDER_NITRO_CHAIN_PK: ${CERC_PONDER_NITRO_CHAIN_PK:-fb1e9af328c283ca3e2486e7c24d13582b7912057d8b9542ff41503c85bc05c0}
-      CERC_PONDER_NITRO_CHAIN_URL: ${CERC_PONDER_NITRO_CHAIN_URL:-http://fixturenet-eth-geth-1:8545}
+      CERC_PONDER_NITRO_CHAIN_URL: ${CERC_PONDER_NITRO_CHAIN_URL:-http://fixturenet-eth-geth-1:8546}
       CERC_RELAY_MULTIADDR: ${CERC_RELAY_MULTIADDR}
       CERC_UPSTREAM_NITRO_ADDRESS: ${CERC_UPSTREAM_NITRO_ADDRESS:-0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE}
       CERC_UPSTREAM_NITRO_MULTIADDR: ${CERC_UPSTREAM_NITRO_MULTIADDR:-/dns4/go-nitro/tcp/5005/ws/p2p/16Uiu2HAmSjXJqsyBJgcBUU2HQmykxGseafSatbpq5471XmuaUqyv}
diff --git a/app/data/compose/docker-compose-watcher-mobymask-v3.yml b/app/data/compose/docker-compose-watcher-mobymask-v3.yml
index 107c9bba..bd07d7ef 100644
--- a/app/data/compose/docker-compose-watcher-mobymask-v3.yml
+++ b/app/data/compose/docker-compose-watcher-mobymask-v3.yml
@@ -74,6 +74,7 @@ services:
       CERC_SCRIPT_DEBUG: ${CERC_SCRIPT_DEBUG}
       CERC_ETH_RPC_QUERY_ENDPOINT: ${CERC_ETH_RPC_QUERY_ENDPOINT}
       CERC_ETH_RPC_MUTATION_ENDPOINT: ${CERC_ETH_RPC_MUTATION_ENDPOINT}
+      CERC_NITRO_CHAIN_URL: ${CERC_NITRO_CHAIN_URL}
       CERC_RELAY_PEERS: ${CERC_RELAY_PEERS}
       CERC_DENY_MULTIADDRS: ${CERC_DENY_MULTIADDRS}
       CERC_PUBSUB: ${CERC_PUBSUB}
diff --git a/app/data/config/go-nitro/run-nitro-node.sh b/app/data/config/go-nitro/run-nitro-node.sh
index 3131a826..9cc9fccf 100755
--- a/app/data/config/go-nitro/run-nitro-node.sh
+++ b/app/data/config/go-nitro/run-nitro-node.sh
@@ -30,6 +30,6 @@ fi
 
 echo "Running Nitro node"
 
-# TODO Wait for RPC endpoint to come up
+# TODO Wait for chain endpoint to come up
 
-./nitro -chainurl ${NITRO_CHAIN_URL} -msgport 3005 -rpcport 4005 -wsmsgport 5005 -pk ${NITRO_PK} -chainpk ${NITRO_CHAIN_PK} -naaddress ${NA_ADDRESS} -vpaaddress ${VPA_ADDRESS} -caaddress ${CA_ADDRESS} -usedurablestore ${NITRO_USE_DURABLE_STORE} -durablestorefolder ${NITRO_DURABLE_STORE_FOLDER}
+./nitro -chainurl ${CERC_NITRO_CHAIN_URL} -msgport 3005 -rpcport 4005 -wsmsgport 5005 -pk ${CERC_NITRO_PK} -chainpk ${CERC_NITRO_CHAIN_PK} -naaddress ${NA_ADDRESS} -vpaaddress ${VPA_ADDRESS} -caaddress ${CA_ADDRESS} -usedurablestore ${CERC_NITRO_USE_DURABLE_STORE} -durablestorefolder ${CERC_NITRO_DURABLE_STORE_FOLDER}
diff --git a/app/data/config/go-nitro/run-reverse-payment-proxy.sh b/app/data/config/go-nitro/run-reverse-payment-proxy.sh
index f884f20a..4aa07fbe 100755
--- a/app/data/config/go-nitro/run-reverse-payment-proxy.sh
+++ b/app/data/config/go-nitro/run-reverse-payment-proxy.sh
@@ -6,9 +6,9 @@ if [ -n "$CERC_SCRIPT_DEBUG" ]; then
 fi
 
 echo "Running Nitro reverse payment proxy"
-echo "Using PROXY_ADDRESS ${PROXY_ADDRESS}"
-echo "Using PROXY_NITRO_ENDPOINT ${PROXY_NITRO_ENDPOINT}"
-echo "Using PROXY_DESTINATION_URL ${PROXY_DESTINATION_URL}"
-echo "Using PROXY_COST_PER_BYTE ${PROXY_COST_PER_BYTE}"
+echo "Using CERC_PROXY_ADDRESS ${CERC_PROXY_ADDRESS}"
+echo "Using CERC_PROXY_NITRO_ENDPOINT ${CERC_PROXY_NITRO_ENDPOINT}"
+echo "Using CERC_PROXY_DESTINATION_URL ${CERC_PROXY_DESTINATION_URL}"
+echo "Using CERC_PROXY_COST_PER_BYTE ${CERC_PROXY_COST_PER_BYTE}"
 
-./start-reverse-payment-proxy -proxyaddress ${PROXY_ADDRESS} -nitroendpoint=${PROXY_NITRO_ENDPOINT} -destinationurl=${PROXY_DESTINATION_URL} -costperbyte ${PROXY_COST_PER_BYTE} -enablepaidrpcmethods
+./proxy -proxyaddress ${CERC_PROXY_ADDRESS} -nitroendpoint=${CERC_PROXY_NITRO_ENDPOINT} -destinationurl=${CERC_PROXY_DESTINATION_URL} -costperbyte ${CERC_PROXY_COST_PER_BYTE} -enablepaidrpcmethods
diff --git a/app/data/config/nitro-contracts/deploy.sh b/app/data/config/nitro-contracts/deploy.sh
index f4c896f7..758837b8 100755
--- a/app/data/config/nitro-contracts/deploy.sh
+++ b/app/data/config/nitro-contracts/deploy.sh
@@ -53,5 +53,5 @@ done
 
 echo "Using CERC_PRIVATE_KEY_DEPLOYER from env"
 
-yarn test:deploy-contracts --chainurl ${CERC_ETH_RPC_ENDPOINT} --key ${CERC_PRIVATE_KEY_DEPLOYER} --addressesFilePath ${nitro_addresses_file}
+yarn test:deploy-contracts --chainUrl ${CERC_ETH_RPC_ENDPOINT} --key ${CERC_PRIVATE_KEY_DEPLOYER} --addressesFilePath ${nitro_addresses_file}
 cat ${nitro_addresses_file}
diff --git a/app/data/config/ponder/ponder-start.sh b/app/data/config/ponder/ponder-start.sh
index 5fa5c491..51d2447b 100755
--- a/app/data/config/ponder/ponder-start.sh
+++ b/app/data/config/ponder/ponder-start.sh
@@ -5,19 +5,6 @@ if [ -n "$CERC_SCRIPT_DEBUG" ]; then
   set -x
 fi
 
-# Wait till RPC endpoint is available
-retry_interval=5
-while true; do
-  rpc_response=$(curl -s -o /dev/null -w '%{http_code}' ${PONDER_RPC_URL_1})
-  if [ ${rpc_response} = 200 ]; then
-    echo "RPC endpoint is available"
-    break
-  fi
-
-  echo "RPC endpoint not yet available, retrying in $retry_interval seconds..."
-  sleep $retry_interval
-done
-
 nitro_addresses_file="/nitro/nitro-addresses.json"
 nitro_addresses_destination_file="/app/examples/token-erc20/nitro-addresses.json"
 
@@ -55,15 +42,19 @@ if [ -z "$CERC_RELAY_MULTIADDR" ]; then
 fi
 
 env_file='.env.local'
-echo "PONDER_CHAIN_ID=\"$PONDER_CHAIN_ID\"" > "$env_file"
-echo "PONDER_RPC_URL_1=\"$PONDER_RPC_URL_1\"" >> "$env_file"
-echo "CERC_PONDER_NITRO_PK=\"$CERC_PONDER_NITRO_PK\"" >> "$env_file"
-echo "CERC_PONDER_NITRO_CHAIN_PK=\"$CERC_PONDER_NITRO_CHAIN_PK\"" >> "$env_file"
-echo "CERC_PONDER_NITRO_CHAIN_URL=\"$CERC_PONDER_NITRO_CHAIN_URL\"" >> "$env_file"
-echo "CERC_RELAY_MULTIADDR=\"$CERC_RELAY_MULTIADDR\"" >> "$env_file"
-echo "CERC_UPSTREAM_NITRO_ADDRESS=\"$CERC_UPSTREAM_NITRO_ADDRESS\"" >> "$env_file"
-echo "CERC_UPSTREAM_NITRO_MULTIADDR=\"$CERC_UPSTREAM_NITRO_MULTIADDR\"" >> "$env_file"
-echo "CERC_UPSTREAM_NITRO_PAY_AMOUNT=\"$CERC_UPSTREAM_NITRO_PAY_AMOUNT\"" >> "$env_file"
+echo "PONDER_TELEMETRY_DISABLED=true" > "$env_file"
+echo "PONDER_LOG_LEVEL=debug" >> "$env_file"
+echo "PONDER_CHAIN_ID=\"$CERC_PONDER_CHAIN_ID\"" >> "$env_file"
+echo "PONDER_RPC_URL_1=\"$CERC_PONDER_RPC_URL_1\"" >> "$env_file"
+echo "PONDER_NITRO_PK=\"$CERC_PONDER_NITRO_PK\"" >> "$env_file"
+echo "PONDER_NITRO_CHAIN_PK=\"$CERC_PONDER_NITRO_CHAIN_PK\"" >> "$env_file"
+echo "PONDER_NITRO_CHAIN_URL=\"$CERC_PONDER_NITRO_CHAIN_URL\"" >> "$env_file"
+echo "RELAY_MULTIADDR=\"$CERC_RELAY_MULTIADDR\"" >> "$env_file"
+echo "UPSTREAM_NITRO_ADDRESS=\"$CERC_UPSTREAM_NITRO_ADDRESS\"" >> "$env_file"
+echo "UPSTREAM_NITRO_MULTIADDR=\"$CERC_UPSTREAM_NITRO_MULTIADDR\"" >> "$env_file"
+echo "UPSTREAM_NITRO_PAY_AMOUNT=\"$CERC_UPSTREAM_NITRO_PAY_AMOUNT\"" >> "$env_file"
+
+cat "$env_file"
 
 # Keep the container running
 tail -f
diff --git a/app/data/config/ponder/ponder.config.ts b/app/data/config/ponder/ponder.config.ts
index c3a80830..be73af9a 100644
--- a/app/data/config/ponder/ponder.config.ts
+++ b/app/data/config/ponder/ponder.config.ts
@@ -9,6 +9,24 @@ export const config: Config = {
       chainId: Number(process.env.PONDER_CHAIN_ID),
       rpcUrl: process.env.PONDER_RPC_URL_1,
       maxRpcRequestConcurrency: 1,
+      pollingInterval: 5000,
+      payments: {
+        nitro: {
+          address: process.env.UPSTREAM_NITRO_ADDRESS!,
+          multiAddr: process.env.UPSTREAM_NITRO_MULTIADDR!,
+          fundingAmounts: {
+            // TODO: Pass amounts from env
+            directFund: "1000000000000",
+            virtualFund: "1000000000",
+          },
+        },
+        paidRPCMethods: [
+          "eth_getLogs",
+          "eth_getBlockByNumber",
+          "eth_getBlockByHash",
+        ],
+        amount: process.env.UPSTREAM_NITRO_PAY_AMOUNT!,
+      },
     },
   ],
   contracts: [
@@ -22,16 +40,11 @@ export const config: Config = {
     },
   ],
   nitro: {
-    privateKey: process.env.CERC_PONDER_NITRO_PK!,
-    chainPrivateKey: process.env.CERC_PONDER_NITRO_CHAIN_PK!,
-    chainURL: process.env.CERC_PONDER_NITRO_CHAIN_URL!,
+    privateKey: process.env.PONDER_NITRO_PK!,
+    chainPrivateKey: process.env.PONDER_NITRO_CHAIN_PK!,
+    chainUrl: process.env.PONDER_NITRO_CHAIN_URL!,
     contractAddresses,
-    relayMultiAddr: process.env.CERC_RELAY_MULTIADDR!,
+    relayMultiAddr: process.env.RELAY_MULTIADDR!,
     store: "./.ponder/nitro-db",
-    rpcNitroNode: {
-      address: process.env.CERC_UPSTREAM_NITRO_ADDRESS!,
-      multiAddr: process.env.CERC_UPSTREAM_NITRO_MULTIADDR!,
-    },
-    payAmount: process.env.CERC_UPSTREAM_NITRO_PAY_AMOUNT!,
   },
 };
diff --git a/app/data/config/watcher-mobymask-v3/mobymask-params.env b/app/data/config/watcher-mobymask-v3/mobymask-params.env
index f96aae31..1d843597 100644
--- a/app/data/config/watcher-mobymask-v3/mobymask-params.env
+++ b/app/data/config/watcher-mobymask-v3/mobymask-params.env
@@ -9,6 +9,9 @@ DEFAULT_CERC_ETH_RPC_QUERY_ENDPOINT="http://nitro-reverse-payment-proxy:8081"
 # ETH RPC endpoint used for mutations in the watcher
 DEFAULT_CERC_ETH_RPC_MUTATION_ENDPOINT="http://fixturenet-eth-geth-1:8545"
 
+# ETH endpoint used by watcher's Nitro node
+DEFAULT_CERC_NITRO_CHAIN_URL="http://fixturenet-eth-geth-1:8546"
+
 # Set of relay peers to connect to from the relay node
 DEFAULT_CERC_RELAY_PEERS=[]
 
diff --git a/app/data/config/watcher-mobymask-v3/start-server.sh b/app/data/config/watcher-mobymask-v3/start-server.sh
index b3546e81..e2d005c4 100755
--- a/app/data/config/watcher-mobymask-v3/start-server.sh
+++ b/app/data/config/watcher-mobymask-v3/start-server.sh
@@ -7,6 +7,7 @@ fi
 
 CERC_ETH_RPC_QUERY_ENDPOINT="${CERC_ETH_RPC_QUERY_ENDPOINT:-${DEFAULT_CERC_ETH_RPC_QUERY_ENDPOINT}}"
 CERC_ETH_RPC_MUTATION_ENDPOINT="${CERC_ETH_RPC_MUTATION_ENDPOINT:-${DEFAULT_CERC_ETH_RPC_MUTATION_ENDPOINT}}"
+CERC_NITRO_CHAIN_URL="${CERC_NITRO_CHAIN_URL:-${DEFAULT_CERC_NITRO_CHAIN_URL}}"
 CERC_RELAY_PEERS="${CERC_RELAY_PEERS:-${DEFAULT_CERC_RELAY_PEERS}}"
 CERC_DENY_MULTIADDRS="${CERC_DENY_MULTIADDRS:-${DEFAULT_CERC_DENY_MULTIADDRS}}"
 CERC_PUBSUB="${CERC_PUBSUB:-${DEFAULT_CERC_PUBSUB}}"
@@ -19,6 +20,7 @@ watcher_keys_dir="./keys"
 
 echo "Using RPC query endpoint ${CERC_ETH_RPC_QUERY_ENDPOINT}"
 echo "Using RPC mutation endpoint ${CERC_ETH_RPC_MUTATION_ENDPOINT}"
+echo "Using Nitro chain URL ${CERC_NITRO_CHAIN_URL}"
 
 # Use public domain for relay multiaddr in peer config if specified
 # Otherwise, use the docker container's host IP
@@ -146,6 +148,7 @@ WATCHER_CONFIG=$(echo "$WATCHER_CONFIG_TEMPLATE" | \
     s/REPLACE_WITH_CERC_PRIVATE_KEY_PEER/${CERC_PRIVATE_KEY_PEER}/g; \
     s/REPLACE_WITH_CERC_WATCHER_NITRO_PK/${CERC_WATCHER_NITRO_PK}/g; \
     s/REPLACE_WITH_CONTRACT_ADDRESS/${CONTRACT_ADDRESS}/g; \
+    s|REPLACE_WITH_CERC_NITRO_CHAIN_URL|${CERC_NITRO_CHAIN_URL}|g; \
     s/REPLACE_WITH_CONSENSUS_ENABLED/${CONSENSUS_ENABLED}/g; \
     s/REPLACE_WITH_CONSENSUS_PUBLIC_KEY/${CONSENSUS_PUBLIC_KEY}/g; \
     s/REPLACE_WITH_CONSENSUS_PRIVATE_KEY/${CONSENSUS_PRIVATE_KEY}/g; \
diff --git a/app/data/config/watcher-mobymask-v3/watcher-config-template.toml b/app/data/config/watcher-mobymask-v3/watcher-config-template.toml
index e2b5d1aa..052fcd63 100644
--- a/app/data/config/watcher-mobymask-v3/watcher-config-template.toml
+++ b/app/data/config/watcher-mobymask-v3/watcher-config-template.toml
@@ -53,6 +53,7 @@
         contractAddress = 'REPLACE_WITH_CONTRACT_ADDRESS'
 
     [server.p2p.nitro]
+      chainUrl = 'REPLACE_WITH_CERC_NITRO_CHAIN_URL'
       store = './out/nitro-db'
       privateKey = 'REPLACE_WITH_CERC_WATCHER_NITRO_PK'
       chainPrivateKey = 'REPLACE_WITH_CERC_PRIVATE_KEY_PEER'
@@ -93,15 +94,22 @@
 
 [upstream]
   [upstream.ethServer]
-    gqlApiEndpoint = 'http://ipld-eth-server:8083/graphql'
+    gqlApiEndpoint = "http://ipld-eth-server:8083/graphql"
     rpcProviderEndpoint = 'REPLACE_WITH_CERC_ETH_RPC_QUERY_ENDPOINT'
     rpcProviderMutationEndpoint = 'REPLACE_WITH_CERC_ETH_RPC_MUTATION_ENDPOINT'
 
-    [upstream.ethServer.rpcProviderNitroNode]
-      address = 'REPLACE_WITH_UPSTREAM_NITRO_ADDRESS'
-      multiAddr = 'REPLACE_WITH_UPSTREAM_NITRO_MULTIADDR'
+    [upstream.ethServer.payments]
+      paidRPCMethods = ["eth_getBlockByHash", "eth_getBlockByNumber", "eth_getStorageAt"]
       amount = 'REPLACE_WITH_UPSTREAM_NITRO_PAY_AMOUNT'
 
+      [upstream.ethServer.payments.nitro]
+        address = 'REPLACE_WITH_UPSTREAM_NITRO_ADDRESS'
+        multiAddr = 'REPLACE_WITH_UPSTREAM_NITRO_MULTIADDR'
+
+        [upstream.ethServer.payments.nitro.fundingAmounts]
+          directFund = "1000000000000"
+          virtualFund = "1000000000"
+
   [upstream.cache]
     name = "requests"
     enabled = false
diff --git a/app/data/container-build/cerc-nitro-contracts/Dockerfile b/app/data/container-build/cerc-nitro-contracts/Dockerfile
index 23c95886..4ed5192d 100644
--- a/app/data/container-build/cerc-nitro-contracts/Dockerfile
+++ b/app/data/container-build/cerc-nitro-contracts/Dockerfile
@@ -7,6 +7,6 @@ WORKDIR /app
 COPY . .
 
 RUN echo "Installing dependencies" && \
-  yarn
+  yarn && yarn build:node
 
-WORKDIR /app/packages/nitro-util
+WORKDIR /app/packages/nitro-node
diff --git a/app/data/container-build/cerc-nitro-rpc-client/Dockerfile b/app/data/container-build/cerc-nitro-rpc-client/Dockerfile
new file mode 100644
index 00000000..2c0d636a
--- /dev/null
+++ b/app/data/container-build/cerc-nitro-rpc-client/Dockerfile
@@ -0,0 +1,12 @@
+FROM node:18.17.1-alpine3.18
+
+RUN apk --update --no-cache add python3 alpine-sdk bash curl jq
+
+WORKDIR /app
+
+COPY . .
+
+RUN echo "Installing dependencies" && \
+  yarn
+
+RUN cd packages/nitro-rpc-client
diff --git a/app/data/container-build/cerc-nitro-rpc-client/build.sh b/app/data/container-build/cerc-nitro-rpc-client/build.sh
new file mode 100755
index 00000000..1a80583b
--- /dev/null
+++ b/app/data/container-build/cerc-nitro-rpc-client/build.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# Build cerc/nitro-rpc-client
+
+source ${CERC_CONTAINER_BASE_DIR}/build-base.sh
+
+# See: https://stackoverflow.com/a/246128/1701505
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+docker build -t cerc/nitro-rpc-client:local -f ${SCRIPT_DIR}/Dockerfile ${build_command_args} ${CERC_REPO_BASE_DIR}/go-nitro
diff --git a/app/data/container-build/cerc-watcher-ts/Dockerfile b/app/data/container-build/cerc-watcher-ts/Dockerfile
index 75ba2efa..ec6c00f8 100644
--- a/app/data/container-build/cerc-watcher-ts/Dockerfile
+++ b/app/data/container-build/cerc-watcher-ts/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:16.17.1-alpine3.16
+FROM node:18.17.1-alpine3.18
 
 RUN apk --update --no-cache add git python3 alpine-sdk jq
 
diff --git a/app/data/stacks/fixturenet-payments/demo.md b/app/data/stacks/fixturenet-payments/demo.md
index 1bdf87bb..0b5e658d 100644
--- a/app/data/stacks/fixturenet-payments/demo.md
+++ b/app/data/stacks/fixturenet-payments/demo.md
@@ -13,6 +13,7 @@
   # ts-nitro:util:nitro Ledger channel created with id 0x65703ccdfacab09ac35367bdbe6c5a337e7a6651aad526807607b1c59b28bc1e
   # ...
   # ts-nitro:util:nitro Virtual payment channel created with id 0x29ff1335d73391a50e8fde3e9b34f00c3d81c39ddc7f89187f44dd51df96140e
+  # vulcanize:server Starting server... +0ms
   ```
 
 * Export the payment channel id to a variable:
@@ -21,39 +22,21 @@
   export WATCHER_UPSTREAM_PAYMENT_CHANNEL=<PAYMENT_CHANNEL_ID>
   ```
 
-* Generate an auth token required to query the go-nitro node's RPC endpoint:
-
-  ```bash
-  export AUTH_TOKEN=$(curl -s -X POST -H "Content-Type: application/json" --data '{
-    "jsonrpc": "2.0", "id": 1,
-    "method": "get_auth_token",
-    "params": {}
-  }' http://127.0.0.1:4005/api/v1 | jq -r '.result')
-  ```
-
 * Check the payment channel status:
 
   ```bash
-  curl -X POST -H "Content-Type: application/json" --data "{
-    \"jsonrpc\": \"2.0\", \"id\": 1,
-    \"method\": \"get_payment_channel\",
-    \"params\": { \"authtoken\": \"$AUTH_TOKEN\", \"payload\": { \"Id\": \"$WATCHER_UPSTREAM_PAYMENT_CHANNEL\" } }
-  }" http://127.0.0.1:4005/api/v1 | jq
+  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -h go-nitro -p 4005"
 
   # Expected output:
   # {
-  #   "jsonrpc": "2.0",
-  #   "id": 1,
-  #   "result": {
-  #     "ID": "0xfe1231722d6c2cd7af8606afe039582ebc438ee5ca2b956f8284cb497597583f",
-  #     "Status": "Open",
-  #     "Balance": {
-  #       "AssetAddress": "0x0000000000000000000000000000000000000000",
-  #       "Payee": "0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce",
-  #       "Payer": "0xbbb676f9cff8d242e9eac39d063848807d3d1d94",
-  #       "PaidSoFar": "0x0",
-  #       "RemainingFunds": "0x3b9aca00"
-  #     }
+  #   ID: '0x8c0d17639bd2ba07dbcd248304a8f3c6c7276bfe25c2b87fe41f461e20f33f01',
+  #   Status: 'Open',
+  #   Balance: {
+  #     AssetAddress: '0x0000000000000000000000000000000000000000',
+  #     Payee: '0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce',
+  #     Payer: '0xbbb676f9cff8d242e9eac39d063848807d3d1d94',
+  #     PaidSoFar: 0n,
+  #     RemainingFunds: 1000000000n
   #   }
   # }
   ```
@@ -127,7 +110,7 @@
 
 * Perform phisher status check queries now that a payment channel is created:
   * Check the watcher logs for received payments
-  * Check the payment proxy server logs for charged RPC requests (`eth_getBlockByHash`, `eth_getStorageAt`) made from watcher to upstream ETH server
+  * Check the payment proxy server logs for charged RPC requests (`eth_getBlockByHash`, `eth_getBlockByNumber`, `eth_getStorageAt`) made from watcher to upstream ETH server
 
 * Change the amount besides `PAY` button to `>=100` for phisher reports next
 
@@ -136,26 +119,18 @@
 * Check the watcher - eth-server payment channel status after a few requests:
 
   ```bash
-  curl -X POST -H "Content-Type: application/json" --data "{
-    \"jsonrpc\": \"2.0\", \"id\": 1,
-    \"method\": \"get_payment_channel\",
-    \"params\": { \"authtoken\": \"$AUTH_TOKEN\", \"payload\": { \"Id\": \"$WATCHER_UPSTREAM_PAYMENT_CHANNEL\" } }
-  }" http://127.0.0.1:4005/api/v1 | jq
+  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -h go-nitro -p 4005"
 
   # Expected output ('PaidSoFar' should be non zero):
   # {
-  #   "jsonrpc": "2.0",
-  #   "id": 1,
-  #   "result": {
-  #     "ID": "0xfe1231722d6c2cd7af8606afe039582ebc438ee5ca2b956f8284cb497597583f",
-  #     "Status": "Open",
-  #     "Balance": {
-  #       "AssetAddress": "0x0000000000000000000000000000000000000000",
-  #       "Payee": "0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce",
-  #       "Payer": "0xbbb676f9cff8d242e9eac39d063848807d3d1d94",
-  #       "PaidSoFar": "0x2710",
-  #       "RemainingFunds": "0x3b9aa2f0"
-  #     }
+  #   ID: '0x8c0d17639bd2ba07dbcd248304a8f3c6c7276bfe25c2b87fe41f461e20f33f01',
+  #   Status: 'Open',
+  #   Balance: {
+  #     AssetAddress: '0x0000000000000000000000000000000000000000',
+  #     Payee: '0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce',
+  #     Payer: '0xbbb676f9cff8d242e9eac39d063848807d3d1d94',
+  #     PaidSoFar: 30000n,
+  #     RemainingFunds: 999970000n
   #   }
   # }
   ```
@@ -184,14 +159,20 @@
 * Check the ponder - eth-server payment channel status:
 
   ```bash
-  curl -X POST -H "Content-Type: application/json" --data "{
-    \"jsonrpc\": \"2.0\", \"id\": 1,
-    \"method\": \"get_payment_channel\",
-    \"params\": { \"authtoken\": \"$AUTH_TOKEN\", \"payload\": { \"Id\": \"$PONDER_UPSTREAM_PAYMENT_CHANNEL\" } }
-  }" http://127.0.0.1:4005/api/v1 | jq
+  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $PONDER_UPSTREAM_PAYMENT_CHANNEL -h go-nitro -p 4005"
 
-  # Expected output:
-  # TODO
+  # Expected output ('PaidSoFar' is non zero):
+  # {
+  #   ID: '0x1178ac0f2a43e54a122216fa6afdd30333b590e49e50317a1f9274a591da0f96',
+  #   Status: 'Open',
+  #   Balance: {
+  #     AssetAddress: '0x0000000000000000000000000000000000000000',
+  #     Payee: '0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce',
+  #     Payer: '0x67d5b55604d1af90074fcb69b8c51838fff84f8d',
+  #     PaidSoFar: 215000n,
+  #     RemainingFunds: 999785000n
+  #   }
+  # }
   ```
 
 * Check reverse payment proxy server logs for charged RPC requests made from ponder app to upstream ETH server:
diff --git a/app/data/stacks/fixturenet-payments/stack.yml b/app/data/stacks/fixturenet-payments/stack.yml
index 7e5be82b..485aeea0 100644
--- a/app/data/stacks/fixturenet-payments/stack.yml
+++ b/app/data/stacks/fixturenet-payments/stack.yml
@@ -8,11 +8,11 @@ repos:
   - git.vdb.to/cerc-io/ipld-eth-db@v5
   - git.vdb.to/cerc-io/ipld-eth-server@v1.11.6-statediff-v5
   # nitro repos
-  - github.com/cerc-io/ts-nitro@v0.1.12
-  - github.com/cerc-io/go-nitro@v0.1.0-ts-port-0.1.4 # TODO: Update after fixes
+  - github.com/cerc-io/ts-nitro@v0.1.13
+  - github.com/cerc-io/go-nitro@ts-interop # TODO: Update after fixes
   # mobymask watcher repos
-  - github.com/cerc-io/watcher-ts@v0.2.61
-  - github.com/cerc-io/mobymask-v2-watcher-ts@v3 # TODO: Update after fixes
+  - github.com/cerc-io/watcher-ts@v0.2.63
+  - github.com/cerc-io/mobymask-v2-watcher-ts@v0.2.2
   - github.com/cerc-io/MobyMask@v0.1.3
   # mobymask app repos
   - github.com/cerc-io/mobymask-snap
@@ -31,6 +31,7 @@ containers:
   - cerc/ipld-eth-server
   - cerc/nitro-contracts
   - cerc/go-nitro
+  - cerc/nitro-rpc-client
   # mobymask watcher images
   - cerc/watcher-ts
   - cerc/watcher-mobymask-v3