diff --git a/packages/stargate/src/stargateclient.searchtx.spec.ts b/packages/stargate/src/stargateclient.searchtx.spec.ts
new file mode 100644
index 00000000..1f10a41b
--- /dev/null
+++ b/packages/stargate/src/stargateclient.searchtx.spec.ts
@@ -0,0 +1,254 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+import { Bech32, fromBase64 } from "@cosmjs/encoding";
+import { Coin, coins, Secp256k1Wallet } from "@cosmjs/launchpad";
+import { makeSignBytes, omitDefaults, Registry } from "@cosmjs/proto-signing";
+import { assert } from "@cosmjs/utils";
+
+import { cosmos } from "./generated/codecimpl";
+import {
+  BroadcastTxResponse,
+  isBroadcastTxFailure,
+  isBroadcastTxSuccess,
+  StargateClient,
+} from "./stargateclient";
+import { faucet, makeRandomAddress, pendingWithoutSimapp, simapp, simappEnabled } from "./testutils.spec";
+
+const { AuthInfo, SignDoc, Tx, TxBody } = cosmos.tx;
+const { PublicKey } = cosmos.crypto;
+
+interface TestTxSend {
+  readonly sender: string;
+  readonly recipient: string;
+  readonly hash: string;
+  readonly height: number;
+  readonly tx: Uint8Array;
+}
+
+async function sendTokens(
+  client: StargateClient,
+  registry: Registry,
+  wallet: Secp256k1Wallet,
+  recipient: string,
+  amount: readonly Coin[],
+  memo: string,
+): Promise<{
+  readonly broadcastResponse: BroadcastTxResponse;
+  readonly tx: Uint8Array;
+}> {
+  const [{ address: walletAddress, pubkey: pubkeyBytes }] = await wallet.getAccounts();
+  const publicKey = PublicKey.create({ secp256k1: pubkeyBytes });
+  const txBodyFields = {
+    typeUrl: "/cosmos.tx.TxBody",
+    value: {
+      messages: [
+        {
+          typeUrl: "/cosmos.bank.MsgSend",
+          value: {
+            fromAddress: Bech32.decode(walletAddress).data,
+            toAddress: Bech32.decode(recipient).data,
+            amount: amount,
+          },
+        },
+      ],
+      memo: memo,
+    },
+  };
+  const txBodyBytes = registry.encode(txBodyFields);
+  const txBody = TxBody.decode(txBodyBytes);
+
+  const authInfo = {
+    signerInfos: [
+      {
+        publicKey: publicKey,
+        modeInfo: {
+          single: {
+            mode: cosmos.tx.signing.SignMode.SIGN_MODE_DIRECT,
+          },
+        },
+      },
+    ],
+    fee: {
+      gasLimit: 200000,
+    },
+  };
+  const authInfoBytes = Uint8Array.from(AuthInfo.encode(authInfo).finish());
+
+  const { accountNumber, sequence } = (await client.getSequence(walletAddress))!;
+  const chainId = await client.getChainId();
+  const signDoc = SignDoc.create(
+    omitDefaults({
+      bodyBytes: txBodyBytes,
+      authInfoBytes: authInfoBytes,
+      chainId: chainId,
+      accountNumber: accountNumber,
+      accountSequence: sequence,
+    }),
+  );
+  const signDocBytes = makeSignBytes(signDoc);
+  const signature = await wallet.sign(walletAddress, signDocBytes);
+  const txRaw = Tx.create({
+    body: txBody,
+    authInfo: authInfo,
+    signatures: [fromBase64(signature.signature)],
+  });
+  const txRawBytes = Uint8Array.from(Tx.encode(txRaw).finish());
+  const broadcastResponse = await client.broadcastTx(txRawBytes);
+  return {
+    broadcastResponse: broadcastResponse,
+    tx: txRawBytes,
+  };
+}
+
+describe("StargateClient.searchTx", () => {
+  const registry = new Registry();
+
+  let sendUnsuccessful: TestTxSend | undefined;
+  let sendSuccessful: TestTxSend | undefined;
+
+  beforeAll(async () => {
+    if (simappEnabled()) {
+      const wallet = await Secp256k1Wallet.fromMnemonic(faucet.mnemonic);
+      const client = await StargateClient.connect(simapp.tendermintUrl);
+      const unsuccessfulRecipient = makeRandomAddress();
+      const successfulRecipient = makeRandomAddress();
+
+      const unsuccessfulResult = await sendTokens(
+        client,
+        registry,
+        wallet,
+        unsuccessfulRecipient,
+        coins(123456700000000, "ucosm"),
+        "Sending more than I can afford",
+      );
+      if (isBroadcastTxFailure(unsuccessfulResult.broadcastResponse)) {
+        sendUnsuccessful = {
+          sender: faucet.address0,
+          recipient: unsuccessfulRecipient,
+          hash: unsuccessfulResult.broadcastResponse.transactionHash,
+          height: unsuccessfulResult.broadcastResponse.height,
+          tx: unsuccessfulResult.tx,
+        };
+      }
+      const successfulResult = await sendTokens(
+        client,
+        registry,
+        wallet,
+        successfulRecipient,
+        coins(1234567, "ucosm"),
+        "Something I can afford",
+      );
+      if (isBroadcastTxSuccess(successfulResult.broadcastResponse)) {
+        sendSuccessful = {
+          sender: faucet.address0,
+          recipient: successfulRecipient,
+          hash: successfulResult.broadcastResponse.transactionHash,
+          height: successfulResult.broadcastResponse.height,
+          tx: successfulResult.tx,
+        };
+      }
+    }
+  });
+
+  describe("with SearchByIdQuery", () => {
+    it("can search successful tx by ID", async () => {
+      pendingWithoutSimapp();
+      assert(sendSuccessful, "value must be set in beforeAll()");
+      const client = await StargateClient.connect(simapp.tendermintUrl);
+      const result = await client.searchTx({ id: sendSuccessful.hash });
+      expect(result.length).toEqual(1);
+      expect(result[0]).toEqual(
+        jasmine.objectContaining({
+          height: sendSuccessful.height,
+          hash: sendSuccessful.hash,
+          code: 0,
+          tx: sendSuccessful.tx,
+        }),
+      );
+    });
+
+    it("can search unsuccessful tx by ID", async () => {
+      pendingWithoutSimapp();
+      assert(sendUnsuccessful, "value must be set in beforeAll()");
+      const client = await StargateClient.connect(simapp.tendermintUrl);
+      const result = await client.searchTx({ id: sendUnsuccessful.hash });
+      expect(result.length).toEqual(1);
+      expect(result[0]).toEqual(
+        jasmine.objectContaining({
+          height: sendUnsuccessful.height,
+          hash: sendUnsuccessful.hash,
+          code: 5,
+          tx: sendUnsuccessful.tx,
+        }),
+      );
+    });
+
+    it("can search by ID (non existent)", async () => {
+      pendingWithoutSimapp();
+      const client = await StargateClient.connect(simapp.tendermintUrl);
+      const nonExistentId = "0000000000000000000000000000000000000000000000000000000000000000";
+      const result = await client.searchTx({ id: nonExistentId });
+      expect(result.length).toEqual(0);
+    });
+
+    it("can search by ID and filter by minHeight", async () => {
+      pendingWithoutSimapp();
+      assert(sendSuccessful, "value must be set in beforeAll()");
+      const client = await StargateClient.connect(simapp.tendermintUrl);
+      const query = { id: sendSuccessful.hash };
+
+      {
+        const result = await client.searchTx(query, { minHeight: 0 });
+        expect(result.length).toEqual(1);
+      }
+
+      {
+        const result = await client.searchTx(query, { minHeight: sendSuccessful.height - 1 });
+        expect(result.length).toEqual(1);
+      }
+
+      {
+        const result = await client.searchTx(query, { minHeight: sendSuccessful.height });
+        expect(result.length).toEqual(1);
+      }
+
+      {
+        const result = await client.searchTx(query, { minHeight: sendSuccessful.height + 1 });
+        expect(result.length).toEqual(0);
+      }
+    });
+  });
+
+  describe("with SearchByHeightQuery", () => {
+    it("can search successful tx by height", async () => {
+      pendingWithoutSimapp();
+      assert(sendSuccessful, "value must be set in beforeAll()");
+      const client = await StargateClient.connect(simapp.tendermintUrl);
+      const result = await client.searchTx({ height: sendSuccessful.height });
+      expect(result.length).toBeGreaterThanOrEqual(1);
+      expect(result).toContain(
+        jasmine.objectContaining({
+          height: sendSuccessful.height,
+          hash: sendSuccessful.hash,
+          code: 0,
+          tx: sendSuccessful.tx,
+        }),
+      );
+    });
+
+    it("can search unsuccessful tx by height", async () => {
+      pendingWithoutSimapp();
+      assert(sendUnsuccessful, "value must be set in beforeAll()");
+      const client = await StargateClient.connect(simapp.tendermintUrl);
+      const result = await client.searchTx({ height: sendUnsuccessful.height });
+      expect(result.length).toBeGreaterThanOrEqual(1);
+      expect(result).toContain(
+        jasmine.objectContaining({
+          height: sendUnsuccessful.height,
+          hash: sendUnsuccessful.hash,
+          code: 5,
+          tx: sendUnsuccessful.tx,
+        }),
+      );
+    });
+  });
+});
diff --git a/packages/stargate/src/testutils.spec.ts b/packages/stargate/src/testutils.spec.ts
index efb85a5e..25d985b9 100644
--- a/packages/stargate/src/testutils.spec.ts
+++ b/packages/stargate/src/testutils.spec.ts
@@ -1,7 +1,12 @@
 import { Random } from "@cosmjs/crypto";
+import { Bech32 } from "@cosmjs/encoding";
+
+export function simappEnabled(): boolean {
+  return !!process.env.SIMAPP_ENABLED;
+}
 
 export function pendingWithoutSimapp(): void {
-  if (!process.env.SIMAPP_ENABLED) {
+  if (!simappEnabled()) {
     return pending("Set SIMAPP_ENABLED to enable Simapp based tests");
   }
 }
@@ -10,6 +15,10 @@ export function makeRandomAddressBytes(): Uint8Array {
   return Random.getBytes(20);
 }
 
+export function makeRandomAddress(): string {
+  return Bech32.encode("cosmos", makeRandomAddressBytes());
+}
+
 export const simapp = {
   tendermintUrl: "localhost:26657",
   chainId: "simd-testing",