Instant Mock APIs.
Ready in seconds.

The mock API server for modern teams. Import OpenAPI specs, simulate real-world conditions, and ship faster together.

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// 1. Define your mock endpoint
const response = await fetch('https://mockspec.dev/mock/shop-v1/products');

// 2. Get realistic data instantly
const data = await response.json();
// { id: 'prod_123', name: 'Premium Plan', price: 2900 }

Built for modern engineering teams.

Everything you need to mock APIs at scale, without the complexity.

OpenAPI Import

Generate endpoints instantly from your Swagger/OpenAPI specs.

Chaos Engineering

Simulate latency, errors, and failures to test your app's resilience.

Dynamic Data

Generate realistic fake data with templates. Names, emails, UUIDs, and more.

Team Collaboration

Share mock APIs with your team. Everyone stays in sync.

From zero to mock API in minutes.

No backend required. No infrastructure to manage.

1

Create a project

Sign up and create a project. Import an OpenAPI spec or start from scratch.

2

Define your endpoints

Configure methods, paths, and response bodies. Add delays and failure rates for testing.

3

Start building

Use your API key to call endpoints. Monitor requests in real-time with detailed logs.

Simple, transparent pricing.

Free

$0/mo

Try it out, no credit card required.

  • ✓ 2 Projects
  • ✓ 5 Endpoints per Project
  • ✓ 1,000 Requests/mo
  • ✓ Solo Use Only
  • ✓ 1 Day Log Retention
Start Free
COMING SOON

Pro

Everything in Free, plus:

  • ✓More projects
  • ✓More endpoints
  • ✓Higher request limits
  • ✓Team collaboration
  • ✓Extended log retention
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