Unreliable dependencies
Third-party APIs and sandboxes fail when you need them most. Your tests break and demos crash.
Mock APIs
for Developers
Build custom REST endpoints, return exact JSON payloads, and simulate failures on demand. Keep frontend work, tests, and CI moving without waiting on backend or third-party APIs.
Start Building for Free
Loved by developers ❤️
Terminal
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Why Teams Get Blocked
API dependencies are blocking your releases
External APIs fail, staging breaks, and your team loses momentum.
Blocked development
Frontend waits for backend. Teams stop shipping in parallel and deadlines slip.
Costly test environments
Staging maintenance, excess API calls, and flaky CI pipelines drain budget and time.
Use cases where mock APIs save hours
Pick a workflow and ship without waiting on backend readiness or unstable third-party environments, including API docs and developer portals.
API Prototyping
Most common starting point
Design your API contract before building the real backend. Ship working frontends in minutes.
Third-Party API Dependencies
Replace unreliable external APIs with predictable mocks. No more flaky integrations.
Developer Portals & Docs
Power your API docs and developer portal with stable mock endpoints so users can try live requests before production is ready.
CI/CD Pipelines
Tests need APIs. Mock them in your pipeline — predictable, fast, always available.
Scalable Testing
Run integration and E2E tests against consistent mock data. No rate limits, no downtime.
Parallel Development
Frontend and backend teams work independently. No more waiting for endpoints to be ready.
Everything you need for reliable mock APIs
Define endpoints, set responses, simulate errors — live in seconds with API key auth.
Custom EndpointsJSON ResponsesError SimulationAPI Key AuthCloud HostedDeveloper-First
Custom Endpoints
- Define any REST endpoint path you need
- Support for path parameters like /users/{id}
- All HTTP methods: GET, POST, PUT, PATCH, DELETE
- Organize endpoints across multiple projects
Simple pricing
One plan for custom mock APIs. Flat monthly price, cancel anytime.
Developer
Everything you need to build and test with mock APIs
$15
$10
USD
- REST API support
- Priority support
- Simulate errors & status codes
- Simulate network delays
- CORS support
- 20 projects
- 50,000 API calls/month
7-day free trial, then $10/month. Cancel anytime.
FAQ
Frequently Asked Questions
Mockerito is a cloud service for creating custom mock REST APIs.
Define endpoints and JSON responses, then get a live API URL with API key authentication. No server setup or installation required.
You create a project, add endpoints, and your mock API goes live instantly.
Set the path (e.g.
/users/{id}), HTTP method, JSON response body, status code, and delay from the dashboard. Each project is protected with an API key.Yes, you can set both status codes and response delays per endpoint.
Use codes like 200, 400, 401, 404, and 500, plus delays up to 30 seconds, to test retries, timeouts, and error handling.
No, Mockerito is fully cloud-hosted.
Sign up, create endpoints in the dashboard, and call your API from any environment, including CI/CD pipelines.
Yes, we offer a free tier through our free public APIs.
You get 200+ endpoints across 9 domains with no signup required, which is ideal for prototyping and learning.
Mockerito is cloud-hosted, so you can create and share mock APIs instantly.
Unlike local desktop tools and heavier enterprise setups, there is no desktop install, Docker, or YAML configuration to get started.
Yes, you can cancel anytime from your account settings.
There is no lock-in or hidden fees, and your mock APIs stay active until the end of your billing period.
Start building faster with mock APIs
Create your first mock API endpoint in under a minute. Free to start, no credit card required.
You won't have to pay before the end of the 7 days trial
