OpenAI compatibility

OpenAI API mocking for CI/CD

Drop-in baseURL swap for OpenAI SDKs so teams can test chat completions without live-token spend or flaky model output.

Copy-paste SDK setup

Use this in local tests, GitHub Actions, or pre-deploy smoke suites.

const client = new OpenAI({
  apiKey: process.env.MOCKLLM_API_KEY,
  baseURL: 'https://api.mockllm.io/v1'
})

Endpoint

https://api.mockllm.io/v1

CI use cases

✓Chat completion contract tests
✓Rate-limit and timeout fallback tests
✓Fixture-backed pull request checks

GitHub Actions smoke test

Gate releases with a deterministic MockLLM fixture instead of a live provider call.

- name: OpenAI MockLLM smoke test
  env:
    MOCKLLM_API_KEY: ${{ secrets.MOCKLLM_API_KEY }}
  run: npm test -- --runTestsByPath tests/openai-smoke.test.ts

Ship deterministic LLM tests this week

Start with one fixture, prove the provider contract, and expand coverage without increasing API spend.

Start free Build a fixture