api-contract-specification

To generate a contract-first API specification, you provide an API design and select a contract format like OpenAPI 3.1 or AsyncAPI 3.0. The tool then formalizes the design into a machine-readable contract with mandatory examples to guide implementation.

Contract-first API development establishes a machine-readable specification as the single source of truth before implementation begins. This approach streamlines testing and governance by aligning client and server development to a formalized contract.

Yes, this contract-first approach works with GraphQL SDL and gRPC Protobuf workflows. It formalizes API designs across REST, event-driven, and GraphQL formats, satisfying specific contract requirements while generating mandatory examples and defined security schemes.

Yes, you can integrate Spectral or Redocly to lint an OpenAPI 3.1 contract. The generated specifications are lint-ready, allowing you to ensure quality and validate security schemes before merging your contract.

The best way to define security schemes and reusable components in an API contract is to explicitly declare them per operation. Keeping schemas, responses, parameters, and security schemes DRY ensures the contract remains maintainable and lint-ready.

Your API contract requires explicit examples for every operation to reduce ambiguity during implementation. Mandatory examples ensure that client and server developers interpret the machine-readable contract consistently, streamlining downstream testing and hand-offs.