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Quickstart

Connect the Context Atlas MCP server to your agent and run a first query, in about two minutes.

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1. Connect the MCP server

The server lives at https://contextatlas.dev/mcp. It uses Streamable HTTP and needs no key. In Claude Code, run this in your terminal:

claude mcp add --transport http contextatlas https://contextatlas.dev/mcp

Using Cursor, Codex, VS Code or another client? Copy its snippet from Connect a client instead.

2. Check that it is connected

Start a new session of your agent and list the MCP servers. In Claude Code, run claude mcp list in the terminal or type /mcp inside a session. contextatlas should show as connected, with three tools: search, get_topic and list_topics.

3. Ask your first question

Open your project and ask the agent, for example:

Use the contextatlas MCP server to detect the stack of this repository and load the docs for it.

The agent reads your package.json and config files, calls search for what it finds, then get_topic for each tool, and fetches the llms.txt or rule files the catalog points to. For a new project, ask instead:

Use contextatlas to propose a stack for a booking app with payments. Explain the trade-offs before you set anything up.

No MCP support?

Paste the one-sentence prompt from /agent into any agent with web access. It points the agent to /llms.txt, which holds the same catalog and instructions as plain text. See Give it to your agent.

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