shriramkv / mcp-mock-server

git clone https://github.com/shriramkv/mcp-mock-server.git

A zero-dependency, configurable mock MCP server for testing MCP clients and harnesses. Serves a correct MCP handshake over stdio (initialize, tools/list, tools/call). You describe tools and canned responses in a JSON file. Simulates errors and missing-argument handling. Perfect target for your existing conformance, audit, and load-test tools.