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mockserver-monorepo

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

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testingmock-servermcp-serverproxyjava-clientjavascript-clientnode-clientnode-moduleruby-clienthomebrewJavaaipythonllmgrunt-pluginchaos-engineeringmcp

MockServer is an HTTP(S) mock server and proxy for testing that can mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP on a single port, plus HTTP/3, message brokers, and AI/LLM APIs, and this monorepo also ships an MCP server role.

Use it when you need one tool to mock, proxy, and fault-inject network traffic across many protocols for testing.

Use it to

  • Mock HTTP, gRPC, and WebSocket APIs for tests
  • Inspect and modify live traffic through the proxy
  • Inject failures for chaos-style testing
  • Expose mocking capabilities via the MCP server

For Developers and testers working with HTTP-based services

Role
mcp-server
Language
Java
Licence
Apache-2.0
Forks
1,116
Last push
2026-09-17
Latest release
mockserver-6.0.0 · 2026-05-20
topicsmock-serverproxytestingmcpchaos-engineeringllm