aimock

Why we included this project

Testing an AI app usually means keeping the SDK from accidentally talking to a paid API. aimock gives you one local server that stands in for the services your app calls, from chat and image models to embeddings, text-to-speech, MCP tools, and vector stores. You point your provider's base URL at a single port, set a fake key, script the responses you want, and run tests with no network access or surprise bills. The server has zero dependencies, emulates real wire protocols, and supports record and replay, so it fits into existing test suites and can reproduce hard-to-capture failures. For teams that want a test double covering more than just the LLM call, this is a practical way to exercise the whole stack deterministically.