mockserver-monorepo

Why we included this project

The usual pain point it removes is development stalling on an API that isn't finished, keeps flaking, or is awkward to run locally. MockServer stands in for the missing service with configurable mocked responses, and it can also sit in front of live traffic as a proxy, recording requests and pausing at breakpoints where you can edit or abort an exchange, which helps when you're debugging an integration you don't control. Resilience teams get a separate win: inject latency, drop connections, or force errors to see how your application copes when upstreams degrade. Where it stands out is protocol breadth, since HTTP/1.1, HTTP/2, gRPC, WebSockets, and raw TCP are auto-detected on a single port, with mocked OpenAI and Anthropic chat-completion endpoints and MCP-related mocking on top. For teams testing distributed systems that span several protocols, that's one consistent tool instead of a pile of per-service stubs.