Model Context Protocol (MCP)

MCP Inspector

Developer tool for testing and debugging MCP servers. React-based web UI plus Node.js proxy, launched with `npx @modelcontextprotocol/inspector` and accessible at http://localhost:6274. Provides interactive testing of tools, resources, and prompts, plus a CLI mode for scripted testing.

GitHub

SDKs

📦
GitHubRepository
https://github.com/modelcontextprotocol/inspector

Other Resources

🔗
CLI
https://www.npmjs.com/package/@modelcontextprotocol/inspector

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

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  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

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curl "https://apis.io/api/v1/apis/mcp-inspector"
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API entry from apis.yml

apis.yml Raw ↑ 
name: MCP Inspector
description: Developer tool for testing and debugging MCP servers. React-based web UI plus Node.js proxy,
  launched with `npx @modelcontextprotocol/inspector` and accessible at http://localhost:6274. Provides
  interactive testing of tools, resources, and prompts, plus a CLI mode for scripted testing.
humanURL: https://github.com/modelcontextprotocol/inspector
tags:
- Tooling
- Debugging
- Inspector
properties:
- type: GitHubRepository
  url: https://github.com/modelcontextprotocol/inspector
- type: CLI
  url: https://www.npmjs.com/package/@modelcontextprotocol/inspector