diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa57b47b..7665af03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,9 @@ and this project adheres to
   ([#932]).
 - @cosmjs/stargate: Merge `DeliverTxFailure` and `DeliverTxSuccess` into a
   single `DeliverTxResponse` ([#878], [#949]). Add `assertIsDeliverTxFailure`.
+- @cosmjs/amino: Added `StdTx`, `isStdTx` and `makeStdTx` and removed them from
+  @cosmjs/launchpad. They are re-exported in @cosmjs/launchpad for backwards
+  compatibility.
 
 [#938]: https://github.com/cosmos/cosmjs/issues/938
 [#932]: https://github.com/cosmos/cosmjs/issues/932
diff --git a/packages/amino/src/index.ts b/packages/amino/src/index.ts
index 42d9720c..6eca28c0 100644
--- a/packages/amino/src/index.ts
+++ b/packages/amino/src/index.ts
@@ -31,4 +31,5 @@ export { Secp256k1Wallet } from "./secp256k1wallet";
 export { decodeSignature, encodeSecp256k1Signature, StdSignature } from "./signature";
 export { AminoMsg, makeSignDoc, serializeSignDoc, StdFee, StdSignDoc } from "./signdoc";
 export { AccountData, Algo, AminoSignResponse, OfflineAminoSigner } from "./signer";
+export { StdTx, isStdTx, makeStdTx } from "./stdtx";
 export { executeKdf, KdfConfiguration } from "./wallet";
diff --git a/packages/amino/src/stdtx.spec.ts b/packages/amino/src/stdtx.spec.ts
new file mode 100644
index 00000000..4f194e89
--- /dev/null
+++ b/packages/amino/src/stdtx.spec.ts
@@ -0,0 +1,52 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+import { coins } from "./coins";
+import { StdSignature } from "./signature";
+import { makeSignDoc, StdFee } from "./signdoc";
+import { makeStdTx } from "./stdtx";
+
+describe("makeStdTx", () => {
+  it("can make an StdTx from a SignDoc and one signature", () => {
+    const fee: StdFee = { amount: coins(123, "ucosm"), gas: "22" };
+    const signDoc = makeSignDoc([], fee, "chain-xy", "hello", 3, 4);
+    const signature: StdSignature = {
+      pub_key: {
+        type: "tendermint/PubKeySecp256k1",
+        value: "AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP",
+      },
+      signature: "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
+    };
+    const signedTx = makeStdTx(signDoc, signature);
+    expect(signedTx).toEqual({
+      msg: [],
+      memo: "hello",
+      fee: fee,
+      signatures: [signature],
+    });
+  });
+
+  it("can make an StdTx from a SignDoc and multiple signatures", () => {
+    const fee: StdFee = { amount: coins(123, "ucosm"), gas: "22" };
+    const signDoc = makeSignDoc([], fee, "chain-xy", "hello", 3, 4);
+    const signature1: StdSignature = {
+      pub_key: {
+        type: "tendermint/PubKeySecp256k1",
+        value: "AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP",
+      },
+      signature: "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
+    };
+    const signature2: StdSignature = {
+      pub_key: {
+        type: "tendermint/PubKeySecp256k1",
+        value: "A5qFcJBJvEK/fOmEAY0DHNWwSRZ9TEfNZyH8VoVvDtAq",
+      },
+      signature: "NK1Oy4EUGAsoC03c1wi9GG03JC/39LEdautC5Jk643oIbEPqeXHMwaqbdvO/Jws0X/NAXaN8SAy2KNY5Qml+5Q==",
+    };
+    const signedTx = makeStdTx(signDoc, [signature1, signature2]);
+    expect(signedTx).toEqual({
+      msg: [],
+      memo: "hello",
+      fee: fee,
+      signatures: [signature1, signature2],
+    });
+  });
+});
diff --git a/packages/amino/src/stdtx.ts b/packages/amino/src/stdtx.ts
new file mode 100644
index 00000000..2948e1fa
--- /dev/null
+++ b/packages/amino/src/stdtx.ts
@@ -0,0 +1,33 @@
+import { StdSignature } from "./signature";
+import { AminoMsg, StdFee, StdSignDoc } from "./signdoc";
+
+/**
+ * A Cosmos SDK StdTx
+ *
+ * @see https://docs.cosmos.network/master/modules/auth/03_types.html#stdtx
+ */
+export interface StdTx {
+  readonly msg: readonly AminoMsg[];
+  readonly fee: StdFee;
+  readonly signatures: readonly StdSignature[];
+  readonly memo: string | undefined;
+}
+
+export function isStdTx(txValue: unknown): txValue is StdTx {
+  const { memo, msg, fee, signatures } = txValue as StdTx;
+  return (
+    typeof memo === "string" && Array.isArray(msg) && typeof fee === "object" && Array.isArray(signatures)
+  );
+}
+
+export function makeStdTx(
+  content: Pick<StdSignDoc, "msgs" | "fee" | "memo">,
+  signatures: StdSignature | readonly StdSignature[],
+): StdTx {
+  return {
+    msg: content.msgs,
+    fee: content.fee,
+    memo: content.memo,
+    signatures: Array.isArray(signatures) ? signatures : [signatures],
+  };
+}
diff --git a/packages/launchpad/src/cosmosclient.searchtx.spec.ts b/packages/launchpad/src/cosmosclient.searchtx.spec.ts
index d4e4c197..0262b561 100644
--- a/packages/launchpad/src/cosmosclient.searchtx.spec.ts
+++ b/packages/launchpad/src/cosmosclient.searchtx.spec.ts
@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { coins, makeSignDoc, Secp256k1HdWallet } from "@cosmjs/amino";
+import { coins, makeSignDoc, makeStdTx, Secp256k1HdWallet } from "@cosmjs/amino";
 import { assert, sleep } from "@cosmjs/utils";
 
 import { CosmosClient, isBroadcastTxFailure } from "./cosmosclient";
@@ -14,7 +14,7 @@ import {
   makeRandomAddress,
   pendingWithoutLaunchpad,
 } from "./testutils.spec";
-import { makeStdTx, WrappedStdTx } from "./tx";
+import { WrappedStdTx } from "./tx";
 
 interface TestTxSend {
   readonly sender: string;
diff --git a/packages/launchpad/src/cosmosclient.spec.ts b/packages/launchpad/src/cosmosclient.spec.ts
index e19b848f..0f955cd7 100644
--- a/packages/launchpad/src/cosmosclient.spec.ts
+++ b/packages/launchpad/src/cosmosclient.spec.ts
@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { makeSignDoc, Secp256k1HdWallet, StdFee } from "@cosmjs/amino";
+import { makeSignDoc, makeStdTx, Secp256k1HdWallet, StdFee } from "@cosmjs/amino";
 import { assert, sleep } from "@cosmjs/utils";
 import { ReadonlyDate } from "readonly-date";
 
@@ -15,7 +15,7 @@ import {
   tendermintIdMatcher,
   unused,
 } from "./testutils.spec";
-import { isWrappedStdTx, makeStdTx } from "./tx";
+import { isWrappedStdTx } from "./tx";
 
 const blockTime = 1_000; // ms
 
diff --git a/packages/launchpad/src/cosmosclient.ts b/packages/launchpad/src/cosmosclient.ts
index 25fcce92..79e0f93c 100644
--- a/packages/launchpad/src/cosmosclient.ts
+++ b/packages/launchpad/src/cosmosclient.ts
@@ -1,4 +1,4 @@
-import { Coin, Pubkey } from "@cosmjs/amino";
+import { Coin, Pubkey, StdTx } from "@cosmjs/amino";
 import { sha256 } from "@cosmjs/crypto";
 import { fromBase64, fromHex, toHex } from "@cosmjs/encoding";
 import { Uint53 } from "@cosmjs/math";
@@ -12,7 +12,7 @@ import {
   uint64ToNumber,
 } from "./lcdapi";
 import { Log, parseLogs } from "./logs";
-import { StdTx, WrappedStdTx } from "./tx";
+import { WrappedStdTx } from "./tx";
 
 export interface GetSequenceResult {
   readonly accountNumber: number;
diff --git a/packages/launchpad/src/index.ts b/packages/launchpad/src/index.ts
index 210f8e40..28b62910 100644
--- a/packages/launchpad/src/index.ts
+++ b/packages/launchpad/src/index.ts
@@ -29,6 +29,9 @@ export {
   pubkeyToAddress,
   pubkeyType,
   serializeSignDoc,
+  isStdTx,
+  makeStdTx,
+  StdTx,
 } from "@cosmjs/amino";
 import { SinglePubkey } from "@cosmjs/amino";
 /** @deprecated PubKey is deprecated. Use `SinglePubkey` or the more general `Pubkey` from `@cosmjs/amino`. */
@@ -157,4 +160,4 @@ export {
 } from "./msgs";
 export { findSequenceForSignedTx } from "./sequence";
 export { CosmosFeeTable, SigningCosmosClient } from "./signingcosmosclient";
-export { isStdTx, isWrappedStdTx, makeStdTx, CosmosSdkTx, StdTx, WrappedStdTx, WrappedTx } from "./tx";
+export { isWrappedStdTx, CosmosSdkTx, WrappedStdTx, WrappedTx } from "./tx";
diff --git a/packages/launchpad/src/lcdapi/distribution.spec.ts b/packages/launchpad/src/lcdapi/distribution.spec.ts
index c2d320e8..95a487db 100644
--- a/packages/launchpad/src/lcdapi/distribution.spec.ts
+++ b/packages/launchpad/src/lcdapi/distribution.spec.ts
@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { coin, coins, makeSignDoc, Secp256k1HdWallet } from "@cosmjs/amino";
+import { coin, coins, makeSignDoc, makeStdTx, Secp256k1HdWallet } from "@cosmjs/amino";
 import { Bech32 } from "@cosmjs/encoding";
 import { sleep } from "@cosmjs/utils";
 
@@ -14,7 +14,6 @@ import {
   nonNegativeIntegerMatcher,
   pendingWithoutLaunchpad,
 } from "../testutils.spec";
-import { makeStdTx } from "../tx";
 import { DistributionExtension, setupDistributionExtension } from "./distribution";
 import { LcdClient } from "./lcdclient";
 
diff --git a/packages/launchpad/src/lcdapi/lcdclient.spec.ts b/packages/launchpad/src/lcdapi/lcdclient.spec.ts
index a06086fe..8499ec1d 100644
--- a/packages/launchpad/src/lcdapi/lcdclient.spec.ts
+++ b/packages/launchpad/src/lcdapi/lcdclient.spec.ts
@@ -1,5 +1,14 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { Coin, coins, makeCosmoshubPath, makeSignDoc, Secp256k1HdWallet, StdFee } from "@cosmjs/amino";
+import {
+  Coin,
+  coins,
+  makeCosmoshubPath,
+  makeSignDoc,
+  makeStdTx,
+  Secp256k1HdWallet,
+  StdFee,
+  StdTx,
+} from "@cosmjs/amino";
 import { assert, sleep } from "@cosmjs/utils";
 
 import { isBroadcastTxFailure } from "../cosmosclient";
@@ -17,7 +26,7 @@ import {
   tendermintIdMatcher,
   unused,
 } from "../testutils.spec";
-import { isWrappedStdTx, makeStdTx, StdTx } from "../tx";
+import { isWrappedStdTx } from "../tx";
 import { setupAuthExtension } from "./auth";
 import { TxsResponse } from "./base";
 import { LcdApiArray, LcdClient } from "./lcdclient";
diff --git a/packages/launchpad/src/lcdapi/lcdclient.ts b/packages/launchpad/src/lcdapi/lcdclient.ts
index 0ed7f40e..69913362 100644
--- a/packages/launchpad/src/lcdapi/lcdclient.ts
+++ b/packages/launchpad/src/lcdapi/lcdclient.ts
@@ -1,8 +1,9 @@
 /* eslint-disable no-dupe-class-members, @typescript-eslint/ban-types, @typescript-eslint/naming-convention */
+import { StdTx } from "@cosmjs/amino";
 import { assert, isNonNullObject } from "@cosmjs/utils";
 import axios, { AxiosError, AxiosInstance } from "axios";
 
-import { StdTx, WrappedStdTx } from "../tx";
+import { WrappedStdTx } from "../tx";
 import {
   BlockResponse,
   BroadcastMode,
diff --git a/packages/launchpad/src/lcdapi/staking.spec.ts b/packages/launchpad/src/lcdapi/staking.spec.ts
index 90ff26f9..6db3e4f5 100644
--- a/packages/launchpad/src/lcdapi/staking.spec.ts
+++ b/packages/launchpad/src/lcdapi/staking.spec.ts
@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { coin, coins, makeSignDoc, Secp256k1HdWallet } from "@cosmjs/amino";
+import { coin, coins, makeSignDoc, makeStdTx, Secp256k1HdWallet } from "@cosmjs/amino";
 import { assert, sleep } from "@cosmjs/utils";
 
 import { assertIsBroadcastTxSuccess } from "../cosmosclient";
@@ -14,7 +14,6 @@ import {
   nonNegativeIntegerMatcher,
   pendingWithoutLaunchpad,
 } from "../testutils.spec";
-import { makeStdTx } from "../tx";
 import { LcdClient } from "./lcdclient";
 import { BondStatus, setupStakingExtension, StakingExtension } from "./staking";
 
diff --git a/packages/launchpad/src/signingcosmosclient.ts b/packages/launchpad/src/signingcosmosclient.ts
index b1e5f877..42c6e4c9 100644
--- a/packages/launchpad/src/signingcosmosclient.ts
+++ b/packages/launchpad/src/signingcosmosclient.ts
@@ -1,12 +1,11 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import { AminoMsg, Coin, makeSignDoc, OfflineAminoSigner, StdFee } from "@cosmjs/amino";
+import { AminoMsg, Coin, makeSignDoc, makeStdTx, OfflineAminoSigner, StdFee, StdTx } from "@cosmjs/amino";
 import equals from "fast-deep-equal";
 
 import { Account, BroadcastTxResult, CosmosClient, GetSequenceResult } from "./cosmosclient";
 import { buildFeeTable, FeeTable, GasLimits, GasPrice } from "./fee";
 import { BroadcastMode } from "./lcdapi";
 import { MsgSend } from "./msgs";
-import { makeStdTx, StdTx } from "./tx";
 
 /**
  * These fees are used by the higher level methods of SigningCosmosClient
diff --git a/packages/launchpad/src/tx.spec.ts b/packages/launchpad/src/tx.spec.ts
deleted file mode 100644
index 9fec53b4..00000000
--- a/packages/launchpad/src/tx.spec.ts
+++ /dev/null
@@ -1,54 +0,0 @@
-/* eslint-disable @typescript-eslint/naming-convention */
-import { coins, StdFee, StdSignature } from "@cosmjs/amino";
-import { makeSignDoc } from "@cosmjs/amino/build/signdoc";
-
-import { makeStdTx } from "./tx";
-
-describe("tx", () => {
-  describe("makeStdTx", () => {
-    it("can make an StdTx from a SignDoc and one signature", () => {
-      const fee: StdFee = { amount: coins(123, "ucosm"), gas: "22" };
-      const signDoc = makeSignDoc([], fee, "chain-xy", "hello", 3, 4);
-      const signature: StdSignature = {
-        pub_key: {
-          type: "tendermint/PubKeySecp256k1",
-          value: "AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP",
-        },
-        signature: "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-      };
-      const signedTx = makeStdTx(signDoc, signature);
-      expect(signedTx).toEqual({
-        msg: [],
-        memo: "hello",
-        fee: fee,
-        signatures: [signature],
-      });
-    });
-
-    it("can make an StdTx from a SignDoc and multiple signatures", () => {
-      const fee: StdFee = { amount: coins(123, "ucosm"), gas: "22" };
-      const signDoc = makeSignDoc([], fee, "chain-xy", "hello", 3, 4);
-      const signature1: StdSignature = {
-        pub_key: {
-          type: "tendermint/PubKeySecp256k1",
-          value: "AtQaCqFnshaZQp6rIkvAPyzThvCvXSDO+9AzbxVErqJP",
-        },
-        signature: "1nUcIH0CLT0/nQ0mBTDrT6kMG20NY/PsH7P2gc4bpYNGLEYjBmdWevXUJouSE/9A/60QG9cYeqyTe5kFDeIPxQ==",
-      };
-      const signature2: StdSignature = {
-        pub_key: {
-          type: "tendermint/PubKeySecp256k1",
-          value: "A5qFcJBJvEK/fOmEAY0DHNWwSRZ9TEfNZyH8VoVvDtAq",
-        },
-        signature: "NK1Oy4EUGAsoC03c1wi9GG03JC/39LEdautC5Jk643oIbEPqeXHMwaqbdvO/Jws0X/NAXaN8SAy2KNY5Qml+5Q==",
-      };
-      const signedTx = makeStdTx(signDoc, [signature1, signature2]);
-      expect(signedTx).toEqual({
-        msg: [],
-        memo: "hello",
-        fee: fee,
-        signatures: [signature1, signature2],
-      });
-    });
-  });
-});
diff --git a/packages/launchpad/src/tx.ts b/packages/launchpad/src/tx.ts
index 57bf5232..16f97072 100644
--- a/packages/launchpad/src/tx.ts
+++ b/packages/launchpad/src/tx.ts
@@ -1,35 +1,4 @@
-import { AminoMsg, StdFee, StdSignature, StdSignDoc } from "@cosmjs/amino";
-
-/**
- * A Cosmos SDK StdTx
- *
- * @see https://docs.cosmos.network/master/modules/auth/03_types.html#stdtx
- */
-export interface StdTx {
-  readonly msg: readonly AminoMsg[];
-  readonly fee: StdFee;
-  readonly signatures: readonly StdSignature[];
-  readonly memo: string | undefined;
-}
-
-export function isStdTx(txValue: unknown): txValue is StdTx {
-  const { memo, msg, fee, signatures } = txValue as StdTx;
-  return (
-    typeof memo === "string" && Array.isArray(msg) && typeof fee === "object" && Array.isArray(signatures)
-  );
-}
-
-export function makeStdTx(
-  content: Pick<StdSignDoc, "msgs" | "fee" | "memo">,
-  signatures: StdSignature | readonly StdSignature[],
-): StdTx {
-  return {
-    msg: content.msgs,
-    fee: content.fee,
-    memo: content.memo,
-    signatures: Array.isArray(signatures) ? signatures : [signatures],
-  };
-}
+import { isStdTx, StdTx } from "@cosmjs/amino";
 
 /**
  * An Amino JSON wrapper around the Tx interface