Mock APIs

Stand-in services for the things you are building.

12 tools10 available now

Mock REST APICreate configurable REST endpoints for integration testing.Available

Stateful CRUD APITest create, read, update, and delete workflows with temporary state.Available

OpenAPI to mockTurn an OpenAPI specification into a mock service.Available

GraphQL mockExplore queries and responses against a stand-in GraphQL API.Available

Mock response templatesCombine dynamic paths, conditions, and response templates.Available

Mock configuration importImport, export, and reuse mock API configurations.Available

Authentication mockSimulate authenticated endpoints and access failures.Available

Third-party API simulatorStand in for external services while you develop.Available

Payment API sandboxSimulate payment events, states, and failure cases.Available

API test scenariosSave and reuse collections of integration test cases.Available

Full category roadmap

All the capabilities planned for this category. Availability is shown on each tool above.

Instantly create mock REST APIs
Mock GET, POST, PUT, PATCH, and DELETE endpoints
Custom JSON/XML/text/binary responses
Dynamic URL parameters
Conditional responses
Response templating
Configurable response delays
Random failures and error simulation
Rate-limit simulation
Stateful CRUD mock APIs
Fake databases behind mock endpoints
OpenAPI specification to mock server
Import/export mock configurations
Mock authentication
Mock OAuth flows
Simulated third-party integrations
Fake payment API workflows
Webhook event simulation
GraphQL mocking in the future
Reusable API testing scenarios

“Coming soon” means planned, not available. We’ll only mark a tool ready when you can actually use it.