diff --git a/packages/proto-signing/src/coins.spec.ts b/packages/proto-signing/src/coins.spec.ts
deleted file mode 100644
index 5f74c4cb..00000000
--- a/packages/proto-signing/src/coins.spec.ts
+++ /dev/null
@@ -1,107 +0,0 @@
-import { coin, coins, parseCoins } from "./coins";
-
-describe("coins", () => {
-  describe("coin", () => {
-    it("works for basic values", () => {
-      expect(coin(123, "utoken")).toEqual({ amount: "123", denom: "utoken" });
-      expect(coin(123.0, "utoken")).toEqual({ amount: "123", denom: "utoken" });
-      expect(coin(Number.MAX_SAFE_INTEGER, "utoken")).toEqual({
-        amount: "9007199254740991",
-        denom: "utoken",
-      });
-      expect(coin(+0, "utoken")).toEqual({ amount: "0", denom: "utoken" });
-      expect(coin(-0, "utoken")).toEqual({ amount: "0", denom: "utoken" });
-    });
-
-    it("throws for non-safe-integer values", () => {
-      expect(() => coin(1.23, "utoken")).toThrow();
-      expect(() => coin(NaN, "utoken")).toThrow();
-      expect(() => coin(Number.POSITIVE_INFINITY, "utoken")).toThrow();
-      expect(() => coin(Number.MAX_SAFE_INTEGER + 1, "utoken")).toThrow();
-    });
-
-    it("throws for negative values", () => {
-      expect(() => coin(-1, "utoken")).toThrow();
-      expect(() => coin(Number.MIN_SAFE_INTEGER, "utoken")).toThrow();
-      expect(() => coin(Number.NEGATIVE_INFINITY, "utoken")).toThrow();
-    });
-  });
-
-  describe("coins", () => {
-    it("returns one element array of coin", () => {
-      expect(coins(123, "utoken")).toEqual([{ amount: "123", denom: "utoken" }]);
-    });
-  });
-
-  describe("parseCoins", () => {
-    it("works for empty", () => {
-      expect(parseCoins("")).toEqual([]);
-    });
-
-    it("works for one element", () => {
-      expect(parseCoins("7643ureef")).toEqual([
-        {
-          amount: "7643",
-          denom: "ureef",
-        },
-      ]);
-    });
-
-    it("works for two", () => {
-      expect(parseCoins("819966000ucosm,700000000ustake")).toEqual([
-        {
-          amount: "819966000",
-          denom: "ucosm",
-        },
-        {
-          amount: "700000000",
-          denom: "ustake",
-        },
-      ]);
-    });
-
-    it("ignores empty elements", () => {
-      // start
-      expect(parseCoins(",819966000ucosm,700000000ustake")).toEqual([
-        {
-          amount: "819966000",
-          denom: "ucosm",
-        },
-        {
-          amount: "700000000",
-          denom: "ustake",
-        },
-      ]);
-      // middle
-      expect(parseCoins("819966000ucosm,,700000000ustake")).toEqual([
-        {
-          amount: "819966000",
-          denom: "ucosm",
-        },
-        {
-          amount: "700000000",
-          denom: "ustake",
-        },
-      ]);
-      // end
-      expect(parseCoins("819966000ucosm,700000000ustake,")).toEqual([
-        {
-          amount: "819966000",
-          denom: "ucosm",
-        },
-        {
-          amount: "700000000",
-          denom: "ustake",
-        },
-      ]);
-    });
-
-    it("throws for invalid inputs", () => {
-      // denom missing
-      expect(() => parseCoins("3456")).toThrowError(/invalid coin string/i);
-
-      // amount missing
-      expect(() => parseCoins("ucosm")).toThrowError(/invalid coin string/i);
-    });
-  });
-});
diff --git a/packages/proto-signing/src/coins.ts b/packages/proto-signing/src/coins.ts
deleted file mode 100644
index ec6881c0..00000000
--- a/packages/proto-signing/src/coins.ts
+++ /dev/null
@@ -1,47 +0,0 @@
-import { Uint53, Uint64 } from "@cosmjs/math";
-
-/**
- * This is the same as Coin from @cosmjs/launchpad but those might diverge in the future.
- */
-export interface Coin {
-  readonly denom: string;
-  readonly amount: string;
-}
-
-/**
- * Creates a coin.
- *
- * This is the same as coin from @cosmjs/launchpad but those might diverge in the future.
- */
-export function coin(amount: number, denom: string): Coin {
-  return { amount: new Uint53(amount).toString(), denom: denom };
-}
-
-/**
- * Creates a list of coins with one element
- *
- * This is the same as coins from @cosmjs/launchpad but those might diverge in the future.
- */
-export function coins(amount: number, denom: string): Coin[] {
-  return [coin(amount, denom)];
-}
-
-/**
- * Takes a coins list like "819966000ucosm,700000000ustake" and parses it
- *
- * This is the same as parseCoins from @cosmjs/launchpad but those might diverge in the future.
- */
-export function parseCoins(input: string): Coin[] {
-  return input
-    .replace(/\s/g, "")
-    .split(",")
-    .filter(Boolean)
-    .map((part) => {
-      const match = part.match(/^([0-9]+)([a-zA-Z]+)/);
-      if (!match) throw new Error("Got an invalid coin string");
-      return {
-        amount: Uint64.fromString(match[1]).toString(),
-        denom: match[2],
-      };
-    });
-}
diff --git a/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts b/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts
index 59b86612..1c6e99db 100644
--- a/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts
+++ b/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts
@@ -1,7 +1,7 @@
+import { coins } from "@cosmjs/amino";
 import { Secp256k1, Secp256k1Signature, sha256 } from "@cosmjs/crypto";
 import { fromBase64, fromHex } from "@cosmjs/encoding";
 
-import { coins } from "./coins";
 import { DirectSecp256k1HdWallet } from "./directsecp256k1hdwallet";
 import { makeAuthInfoBytes, makeSignBytes, makeSignDoc } from "./signing";
 import { faucet, testVectors } from "./testutils.spec";
diff --git a/packages/proto-signing/src/directsecp256k1wallet.spec.ts b/packages/proto-signing/src/directsecp256k1wallet.spec.ts
index a90d123c..933403e8 100644
--- a/packages/proto-signing/src/directsecp256k1wallet.spec.ts
+++ b/packages/proto-signing/src/directsecp256k1wallet.spec.ts
@@ -1,8 +1,8 @@
 /* eslint-disable @typescript-eslint/naming-convention */
+import { coins } from "@cosmjs/amino";
 import { Secp256k1, Secp256k1Signature, sha256 } from "@cosmjs/crypto";
 import { fromBase64, fromHex } from "@cosmjs/encoding";
 
-import { coins } from "./coins";
 import { DirectSecp256k1Wallet } from "./directsecp256k1wallet";
 import { makeAuthInfoBytes, makeSignBytes, makeSignDoc } from "./signing";
 import { testVectors } from "./testutils.spec";
diff --git a/packages/proto-signing/src/index.ts b/packages/proto-signing/src/index.ts
index a27372db..ea5182c9 100644
--- a/packages/proto-signing/src/index.ts
+++ b/packages/proto-signing/src/index.ts
@@ -1,4 +1,6 @@
-export { Coin, coin, coins, parseCoins } from "./coins";
+// This type happens to be shared between Amino and Direct sign modes
+export { Coin, coin, coins, parseCoins } from "@cosmjs/amino";
+
 export {
   isPbjsGeneratedType,
   isTsProtoGeneratedType,