Use with AI agents

Marrow is MCP-native. The fastest way to add it is the one-command setup:

npx -y marrow-setup --email you@example.com

What it does

• Issues a free API key to your email (no card, idempotent)
• Detects your agents and writes the MCP server config — JSON / TOML / CLI auto-detected per client
• Backs up existing config (.marrow.bak) — nothing breaks, re-runs don’t duplicate
• Adds the Marrow skill (scout→read, crawl)
• Runs via npx — nothing installed globally

Manual setup

Claude Code

claude mcp add marrow \
  -e MARROW_API_KEY=mrw_xxx \
  -- npx -y @marrowdev/cloud-mcp

Cursor / Claude Desktop / VS Code

{
  "mcpServers": {
    "marrow": {
      "command": "npx",
      "args": ["-y", "@marrowdev/cloud-mcp"],
      "env": { "MARROW_API_KEY": "mrw_xxx" }
    }
  }
}

Codex

~/.codex/config.toml

[mcp_servers.marrow]
command = "npx"
args = ["-y", "@marrowdev/cloud-mcp"]
env = { MARROW_API_KEY = "mrw_xxx" }

Tools

marrow_scout · marrow_read · marrow_search · marrow_crawl · marrow_batch_scrape · marrow_screenshot · marrow_usage

Monitoring tools are withdrawn

marrow_monitor_create / _list / _run / _delete, the spool option and changeTracking / sections are frozen while the extraction design is reworked. From @marrowdev/cloud-mcp 0.1.2 they are not in the tool list at all — a tool that can only fail does not belong on the map.

⚠️ If your agent still shows them, you are on 0.1.1 or earlier: they will answer 410 monitoring-withdrawn. Update with npx -y @marrowdev/cloud-mcp@latest (or just let npx fetch latest).

The Marrow skill

The setup also installs a skill that teaches your agent Marrow’s three moves:

1. scout → read — map a page cheaply, then deep-read only what matters
2. crawl — take a bounded slice of a site into clean markdown

So you can just talk to your agent (“read me the changelog on astro.build”) instead of remembering tool names.

⚠️ The skill used to teach a third move — “what changed?” / “do my rounds” — built on change tracking and the monitor tools. That move is withdrawn with the lane.