MCPJam

Postman for MCPs - A tool for testing and debugging MCPs

This is an exact mirror of the MCPJam project, hosted at https://github.com/MCPJam/inspector. SourceForge is not affiliated with MCPJam.

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Inspector by MCPJam is a visual developer tool—akin to Postman—for testing and debugging MCP servers, with capabilities to simulate and trace tool execution via various transports and LLM integrations.

Features

Full compliance with the MCP specification for testing tools, resources, prompts, OAuth flows
Supports all primary MCP transports: STDIO, SSE, Streamable HTTP
Integrated playground for LLM tests: OpenAI, Anthropic Claude, Ollama
Rich debugging with logging, tracing, and error reporting
Multi‑server configuration management and modern UI/UX
Easy launch with npx @mcpjam/inspector, opens in browser automatically

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License

MIT License

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

TypeScript

Related Categories

TypeScript MCP Clients

Registered

2025-08-15

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