A mock MCP server for testing MCP client implementations and development workflows. Supports tools, prompts, and resources across multiple transport protocols (stdio, HTTP, SSE).
A simple demonstration MCP server that provides an echo tool and resource for learning how to build MCP servers. Serves as a starting point and template for creating custom MCP server implementations.
A local MCP server that breaks on demand, allowing you to test your client against auth failures, disappearing tools, flaky responses, and token expiry from a web UI.