API key must start with "cm_" and be 20-64 characters.
Paste the API key revealed by the secure setup link in your Armbrain email to unlock the connection steps below. Don't have a key yet? Get set up here.
Recommended · Connect to Claude
Works in Claude Desktop and on claude.ai. No install, no terminal. New to Claude? Download it free first.
1
Desktop: Settings → Connectors → Add custom connector.
Web: claude.ai → Settings → Integrations → Add custom integration.
Web: claude.ai → Settings → Integrations → Add custom integration.
2
Name it Armbrain and paste this URL:
https://api.armbrain.io/mcp
3
Click Add, then Connect, and paste your API key above when prompted.
4
Start a new chat and say hello armbrain — it greets you right back, and you're in. (Want the command list anytime? Type /cmo-help.)
Same connector on every device. Works on any Claude plan.
Shortcut: begin any message with armbrain, cm, or cmo and Claude treats it as an Armbrain request — only when it's the first word.
Using Claude Code instead? (advanced — terminal & slash commands)
The plugin adds the slash commands too.
1
In Claude Code, add the marketplace:
/plugin marketplace add armbrain-io/armbrain-marketplace
2
Then install the plugin:
/plugin install armbrain@armbrain-marketplace
3
When prompted for your API key, paste the key above, then say hello armbrain to confirm it's working.
Adds the slash commands, meeting prep, and your MCP connection.