diff --git a/src/__tests__/masterBitgoExpress/generateWallet.test.ts b/src/__tests__/masterBitgoExpress/generateWallet.test.ts
index bed02154..552efa8b 100644
--- a/src/__tests__/masterBitgoExpress/generateWallet.test.ts
+++ b/src/__tests__/masterBitgoExpress/generateWallet.test.ts
@@ -41,10 +41,6 @@ describe('POST /api/:coin/wallet/generate', () => {
     nock.cleanAll();
   });
 
-  after(() => {
-    nock.restore();
-  });
-
   it('should generate a wallet by calling the enclaved express service', async () => {
     const userKeychainNock = nock(enclavedExpressUrl)
       .post(`/api/${coin}/key/independent`)
diff --git a/src/__tests__/postIndependentKey.test.ts b/src/__tests__/postIndependentKey.test.ts
new file mode 100644
index 00000000..ff8073c7
--- /dev/null
+++ b/src/__tests__/postIndependentKey.test.ts
@@ -0,0 +1,86 @@
+import 'should';
+
+import * as request from 'supertest';
+import nock from 'nock';
+import { app as enclavedApp } from '../enclavedApp';
+import { AppMode, EnclavedConfig, TlsMode } from '../types';
+import express from 'express';
+
+import * as sinon from 'sinon';
+import * as configModule from '../initConfig';
+
+describe('postIndependentKey', () => {
+  let cfg: EnclavedConfig;
+  let app: express.Application;
+  let agent: request.SuperAgentTest;
+
+  // test cofig
+  const kmsUrl = 'http://kms.invalid';
+  const coin = 'hteth';
+  const accessToken = 'test-token';
+
+  // sinon stubs
+  let configStub: sinon.SinonStub;
+
+  before(() => {
+    // nock config
+    nock.disableNetConnect();
+    nock.enableNetConnect('127.0.0.1');
+
+    // app config
+    cfg = {
+      appMode: AppMode.ENCLAVED,
+      port: 0, // Let OS assign a free port
+      bind: 'localhost',
+      timeout: 60000,
+      logFile: '',
+      kmsUrl: kmsUrl,
+      tlsMode: TlsMode.DISABLED,
+      mtlsRequestCert: false,
+      allowSelfSigned: true,
+    };
+
+    configStub = sinon.stub(configModule, 'initConfig').returns(cfg);
+
+    // app setup
+    app = enclavedApp(cfg);
+    agent = request.agent(app);
+  });
+
+  afterEach(() => {
+    nock.cleanAll();
+  });
+
+  after(() => {
+    configStub.restore();
+  });
+
+  // test cases
+  it('should post an independent key successfully', async () => {
+    const mockKmsResponse = {
+      coin: coin,
+      pub: 'xpub661MyMwAqRbcGAEfZmG74QD11P4dCKRkuwpsJG87QKVPcMdA1PLe76de1Ted54rZ2gyqLYhmdhBCFMrt7AoVwPZwXa3Na9aUnvndvXbvmwu',
+      source: 'user',
+      type: 'independent',
+    };
+
+    const kmsNock = nock(kmsUrl).post(`/key`).reply(200, mockKmsResponse);
+
+    console.log(cfg.kmsUrl);
+
+    console.warn(nock.activeMocks());
+    console.warn(nock.isActive());
+
+    const response = await agent
+      .post(`/api/${coin}/key/independent`)
+      .set('Authorization', `Bearer ${accessToken}`)
+      .send({ source: 'user' });
+
+    response.status.should.equal(200);
+    response.body.should.have.property('pub', mockKmsResponse.pub);
+    response.body.should.have.property('coin', mockKmsResponse.coin);
+    response.body.should.have.property('source', mockKmsResponse.source);
+
+    kmsNock.done();
+  });
+});
diff --git a/src/__tests__/signMultisigTransaction.test.ts b/src/__tests__/signMultisigTransaction.test.ts
new file mode 100644
index 00000000..f6322dff
--- /dev/null
+++ b/src/__tests__/signMultisigTransaction.test.ts
@@ -0,0 +1,122 @@
+import 'should';
+
+import * as request from 'supertest';
+import nock from 'nock';
+import { app as enclavedApp } from '../enclavedApp';
+import { AppMode, EnclavedConfig, TlsMode } from '../types';
+import express from 'express';
+
+import * as sinon from 'sinon';
+import * as configModule from '../initConfig';
+
+describe('signMultisigTransaction', () => {
+  let cfg: EnclavedConfig;
+  let app: express.Application;
+  let agent: request.SuperAgentTest;
+
+  // test cofig
+  const kmsUrl = 'http://kms.invalid';
+  const coin = 'hteth';
+  const accessToken = 'test-token';
+
+  // sinon stubs
+  let configStub: sinon.SinonStub;
+
+  before(() => {
+    // nock config
+    nock.disableNetConnect();
+    nock.enableNetConnect('127.0.0.1');
+
+    // app config
+    cfg = {
+      appMode: AppMode.ENCLAVED,
+      port: 0, // Let OS assign a free port
+      bind: 'localhost',
+      timeout: 60000,
+      logFile: '',
+      kmsUrl: kmsUrl,
+      tlsMode: TlsMode.DISABLED,
+      mtlsRequestCert: false,
+      allowSelfSigned: true,
+    };
+
+    configStub = sinon.stub(configModule, 'initConfig').returns(cfg);
+
+    // app setup
+    app = enclavedApp(cfg);
+    agent = request.agent(app);
+  });
+
+  afterEach(() => {
+    nock.cleanAll();
+  });
+
+  after(() => {
+    configStub.restore();
+  });
+
+  // test cases
+  it('should half-sign a multisig transaction successfully', async () => {
+    const input = {
+      source: 'user',
+      pub: 'xpub661MyMwAqRbcGAEfZmG74QD11P4dCKRkuwpsJG87QKVPcMdA1PLe76de1Ted54rZ2gyqLYhmdhBCFMrt7AoVwPZwXa3Na9aUnvndvXbvmwu',
+      txPrebuild: {
+        feeInfo: {
+          date: '2025-06-11T16:35:04.622Z',
+          gasPrice: '11610471836',
+          baseFee: '11478770445',
+          gasUsedRatio: '0.9999833170418686',
+          safeLowMinerTip: '521229555',
+          normalMinerTip: '521229555',
+          standardMinerTip: '521229555',
+          fastestMinerTip: '521229555',
+          ludicrousMinerTip: '550407891',
+        },
+        eip1559: { maxPriorityFeePerGas: '599413988', maxFeePerGas: '23556954878' },
+        recipients: [
+          {
+            amount: '10000',
+            address: '0xe9cbfdf9e02f4ee37ec81683a4be934b4eecc295',
+          },
+        ],
+        nextContractSequenceId: 5,
+        gasLimit: 200000,
+        isBatch: false,
+        coin: 'hteth',
+        walletId: '68489ecff6fb16304670b327db8eb31a',
+        walletContractAddress: '0xe9cbfdf9e02f4ee37ec81683a4be934b4eecc295',
+        reqId: {}, // modified
+        wallet: {
+          // modified
+          bitgo: {},
+          baseCoin: {},
+          _wallet: {},
+        },
+        buildParams: {},
+      },
+    };
+
+    const mockKmsResponse = {
+      prv: 'xprv9s21ZrQH143K3gACTjj6hGGGTME8nrhuYiuGVsiVqyxQjZJ1Tr2PZJKAABHLm2gMSwqRmXBXT8VcXppDy43xjwvt9xdgkDSyRPsBUekEaPq',
+      pub: 'xpub661MyMwAqRbcGAEfZmG74QD11P4dCKRkuwpsJG87QKVPcMdA1PLe76de1Ted54rZ2gyqLYhmdhBCFMrt7AoVwPZwXa3Na9aUnvndvXbvmwu',
+      source: 'user',
+      type: 'independent',
+    };
+
+    const kmsNock = nock(kmsUrl)
+      .get(`/key/${input.pub}`)
+      .query({ source: 'user' })
+      .reply(200, mockKmsResponse);
+
+    const response = await agent
+      .post(`/api/${coin}/multisig/sign`)
+      .set('Authorization', `Bearer ${accessToken}`)
+      .query({ source: input.source })
+      .send(input);
+
+    response.status.should.equal(200);
+    response.body.should.have.property('halfSigned');
+
+    kmsNock.done();
+  });
+});