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Custom MCP connectors are added through the web app for both Claude and ChatGPT, not their phone apps. Paste this server URL where each one asks for it:

https://swarm-mcp.llm-swarm.com/mcp

Claude

1. Tap "Add to Claude" below — it jumps straight to the "Add custom connector" form
2. Paste swarm-host into Name, and the URL above into Remote MCP server URL
3. Click Add — it'll open a Cloudflare sign-in, and since you're already authenticated for this page it should be instant

Once added there, it's available on this Claude account everywhere — including the iPhone app.

ChatGPT

1. Requires a Plus/Pro/Business/Enterprise account — turn on Developer mode first under Settings → Security & login (Business/Enterprise: Workspace Settings → Permissions & Roles)
2. Tap "Add to ChatGPT" below, then the + button to create a new connector
3. Paste the URL above into MCP server URL and click Create

Want the full menu bar app instead (status, connection info, and — if you have your own Mac to spare — the ability to host your own model)? Switch to the "setting up my own swarm" tab above.

This sets up your own independent tunnel, DNS, and Cloudflare Access app under your own subdomain — separate from anyone else's swarm.

Your subdomain and tunnel are ready. This downloads swarm-host, checks for missing dependencies, and connects it to the tunnel just created for you.

Takes a few minutes — it downloads a local model sized to your Mac's memory if you don't specify one, and walks you through connecting Claude at the end.

Prefer a GUI installer with a menu bar app instead of Terminal?

macOS will warn "Apple could not verify this is free of malware" since it isn't notarized yet — that's expected. Right-click the .pkg → Open, or go to System Settings → Privacy & Security and click "Open Anyway" after the first blocked attempt.