For docs, MCP means an AI coding assistant can query your documentation directly. A developer using Claude Code or Cursor connects to a docs MCP server, and the assistant searches the docs and answers with current, product-specific information instead of stale training data.
An MCP server exposes capabilities as tools. A documentation MCP server typically exposes a search tool over the indexed docs, so the assistant retrieves relevant passages on demand. The mechanics resemble RAG, but the request comes from the user's own AI client.
Biel.ai provides a hosted MCP server for docs sites, so teams can offer this without running infrastructure: users add the server URL to their AI client and get grounded answers from the docs inside their editor.