# MCPJam Inspector

> An open-source testing and evaluation platform for MCP servers, MCP apps and ChatGPT apps.

## Facts
- **Category:** [MCP Servers](https://agentsearchengine.app/category/mcp-servers)
- **Type:** Infrastructure
- **Pricing:** Open source
- **GitHub stars:** 2,223
- **Language:** TypeScript
- **Last repo activity:** today (Sep 23, 2026)
- **Official site:** https://www.mcpjam.com/
- **Source code:** https://github.com/MCPJam/inspector
- **Listing on Agent Search Engine:** https://agentsearchengine.app/agents/mcpjam-inspector
- **Data verified:** September 2026

## Best for
Server authors checking that their MCP server behaves the same in ChatGPT, Claude and Cursor.

## About MCPJam Inspector
MCPJam lets MCP server developers test tools, prompts, resources and authorisation interactively across 16 client configurations and more than 170 models, with traces of every JSON-RPC message and OAuth exchange. It runs evals on test cases to catch cross-client differences and gate regressions in CI. It runs locally or as a hosted app; most code is Apache-2.0, while its evaluation services carry a separate licence.

## Install

```
npx @mcpjam/inspector@latest
```

## Alternatives
MCPJam Inspector sits in mcp servers. Related tools indexed here:
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- [context7](https://agentsearchengine.app/agents/context7) — Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors · Open source · MCP server · 62k★ · TypeScript · MIT · active today
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- [serena](https://agentsearchengine.app/agents/serena) — A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent · Open source · SDK / library · 30k★ · Python · MIT · active today
- [MCP for Blender (blender-mcp)](https://agentsearchengine.app/agents/blender-mcp) — Connect Blender to Claude or any LLM client for prompt-driven 3D modelling and scene editing. · Open source · MCP server · 29k★ · Python · MIT · active 2 days ago
- [fastmcp](https://agentsearchengine.app/agents/fastmcp) — The fast, Pythonic way to build MCP servers and clients. · Open source · SDK / library · 28k★ · Python · Apache-2.0 · active today

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