# MCP ToolChain

> A vendor-neutral directory of tools and services for building, securing, deploying, observing, and using Model Context Protocol systems. Maintained by AuthPlane.

## Core pages
- [Homepage](https://mcptoolchain.ai/): overview and search entry point for the MCP ecosystem
- [Directory](https://mcptoolchain.ai/directory/): the full directory of 155 verified MCP tools and vendors, organized by category
- [Build from Zero](https://mcptoolchain.ai/build/): an eight-step guide from an idea to a production MCP server
- [Full directory (Markdown)](https://mcptoolchain.ai/llms-full.txt): every listing, in full, as one Markdown document
- [Change feed](https://mcptoolchain.ai/feed.xml): RSS feed of listings by last-verified date, most recent first
- [Structured directory export](https://mcptoolchain.ai/mcp-index.json): JSON data for all 155 listings
- [Tabular directory export](https://mcptoolchain.ai/mcp-index.csv): CSV data for all 155 listings

## Related
- [AuthPlane](https://authplane.ai/llms.txt): the OAuth 2.1 authorization server for MCP servers that maintains this directory

## Data notes
The directory contains 155 verified entries across ten categories. Each entry has its own page at https://mcptoolchain.ai/vendor/{id}/, with category, description, deployment model, licence, source links, and a last-verified date. Fields the vendor doesn't document are left blank rather than guessed -- a blank means nothing has been verified for that field, not a "no." Submit corrections to hello@authplane.ai.

## Markdown negotiation
Every page above content-negotiates: request it with `Accept: text/markdown` and get the Markdown version at the same URL, or fetch the `/md` sibling directly (e.g. https://mcptoolchain.ai/build/md, https://mcptoolchain.ai/vendor/{id}/md, https://mcptoolchain.ai/directory/{category}/md).

Last reviewed: 2026-08-21