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Simple, Sharable API Mocks

Instant Specs to Shared Mocks and Easy Collaboration

Chat-based spec generation changes the game for API mocks. Bypass complex forms and describe your specs in a chat—the rest is automatic. Ideal for developers working in agile, test-driven environments. Get started fast with a best practice approach.

Instant API Design

From concept to spec instantly. Blackbird’s API Spec Gen is as quick as chatting. Skip the long setup in form editors; describe your endpoints in natural language, and instantly get OpenAPI-compliant specs.

Ready-to-Share Mocks

Create and share instantly, no backend required. Blackbird Mocking enables rapid API contract testing with dynamic, sharable mocks that don’t require any backend setup. Click once to validate, and share mocks across your team effortlessly.

Code Generation in Seconds

Skip the boilerplate, start with AI-driven code. Get started fast with Blackbird, which generates client- and server-side code from your specs in seconds. AI-powered automation removes manual coding, creating a clean, standardized codebase aligned with your API specs.

Third-Party Specs at Your Fingertips

Access popular third-party API specs and create instant mocks to share and expedite your work.


Included today are APIs from:

  • OpenAPI
  • Google
  • Slack
  • Twitter
  • Zoom

Mock in 2 Clicks with Blackbird

Blackbird API Development Platform: A Composable Solution for API Excellence

BlackbirdBlackbird API Development Platform: A Composable Solution for API Excellence