> ## Documentation Index
> Fetch the complete documentation index at: https://docs.qa.tech/llms.txt
> Use this file to discover all available pages before exploring further.

# Custom MCP Integrations

> Connect your own tools and services to the QA.tech AI chat through MCP servers, with per-tool permissions.

Custom MCP Integrations let the QA.tech AI chat use tools from services you already work with. You connect a remote MCP server, choose which tools the chat may use, and the agent calls them alongside its built-in tools.

This is the reverse direction of the [MCP Server](/integrations/mcp) integration: that one lets your AI editor call QA.tech; this one lets the QA.tech chat call your services.

Setup, OAuth, tool permissions, limits, security, and troubleshooting are on [Custom MCP servers](/core-concepts/ai-chat-assistant#custom-mcp-servers) in the AI Chat Assistant guide.

For TestRail and Xray specifically, use the built-in [TestRail](/integrations/testrail) and [Xray](/integrations/xray) integrations instead.


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