About MCP Tools

MCP Tools is a collection of free, browser-based developer utilities for the Model Context Protocol (MCP). Every tool runs entirely in your browser — no server processing, no file uploads, no accounts required.

MCP is the open standard for connecting AI models to external data and tools, adopted by Anthropic, OpenAI, Google, Microsoft, and the Linux Foundation. As the ecosystem grows, developers need reliable utilities for building, testing, and debugging MCP integrations. That is what this site provides.

Privacy First

Your data never leaves your device. All tools process files and generate output locally using JavaScript. We do not collect, store, or transmit any user data, files, or tool outputs. The site uses Cloudflare Analytics for anonymous traffic metrics only.

Open Source

The tools on this site use open-source libraries including ajv for JSON Schema validation and the official MCP SDK specifications as reference. Bug reports and feature requests are welcome.