Fold Server – The Smart Way to Mock APIs for Integration Testing

🚀 Make Frontend and App Integration Testing Smarter — Not Harder

Tired of manually mocking API responses in your tests? Writing and updating fake responses is not only tedious — it often leads to mismatches between your tests and the real API.

Fold Server changes the game.

✅ With Fold Server, You Can:

• ⚡ Auto-generate mock APIs from real production or staging data
• 📁 Store all your mock responses in a folder — no code changes needed
• 🔐 Configure test users and simulate authentication scenarios
• 🔄 Sync mocks with real environments using fold -record
• 🤖 Remove or mock sensitive data: PII and credentials.
• 🔧 Run locally from a single binary — no install mess. Integrate easily into CI/CD (via [GitHub Actions] or containers)

🔁 How It Works:

1. Write your tests as usual, without hardcoded mocks.
2. Use fold -record to capture real API responses. All responses are saved with sensitive information striped out or mocked.
3. Drop the response files into a folder — Fold turns it into a running API server.
4. Add test users and authentication to simulate real security flows.
5. Run the server locally or in CI/CD — everywhere your tests live.[Example workflow][Example runs]

🧪 Stop Hand-Writing Mocks. Start Shipping with Confidence.

Fold Server lets you test like you’re in production — without touching real systems.