Use CallForMe in Claude Desktop and claude.ai

By Jake Marsh · Updated Nov 5, 2026 · 2 min read

Short answer: Open Customize, then Connectors, choose Add, then Add custom connector, paste https://callforme.tel/mcp, click Add, then Connect. A tab opens and closes by itself; no email or card. Claude Desktop and claude.ai share connectors, so it works in both. The first real call shows one setup link.

Claude Desktop and claude.ai use the same connector list, so one setup covers your laptop, the web, and the Claude mobile apps signed in to the same account.

Wondering what Claude can and can't do on a call first? See can Claude make phone calls?

Install in Claude

1. Open Claude (desktop app or claude.ai).
2. Go to Customize, then Connectors.
3. Click Add, then Add custom connector.
4. Name: CallForMe. URL: https://callforme.tel/mcp
5. Click Continue. Claude detects the sign-in on its own; keep the defaults and click Add.
6. Click Connect. A window opens and closes by itself.
7. Optional but nice: set CallForMe's tools to Always allow, so Claude doesn't ask for permission each time it checks on a call.

Custom connectors work on every Claude plan (Free, Pro, Max, Ultra, Team and Enterprise), in Claude, Claude Desktop and Cowork. Free accounts get one custom connector, so if yours already has one, remove it first or use a paid plan, which allows several (Anthropic help, checked November 4, 2026). On Team and Enterprise plans an owner may need to add the connector for the organization first.

Signing in from Claude

After you click Add, click Connect next to CallForMe. A browser tab opens and closes by itself. There's no email, no form and no card. That creates your CallForMe account.

If Claude doesn't show a Connect step

If your version of Claude can't do OAuth sign-in, use one of these instead:

• https://callforme.tel/mcp/open needs no sign-in. Your agent gets a setup link in each new session unless it saves the account_key it receives.
• A personal URL, https://callforme.tel/mcp/k/<your key>, using a key you create on the account page.

Treat a personal URL like a password. Anyone with it can place calls on your balance.

Using the skill too

Claude on the web and desktop also supports Agent Skills. Download the callforme skill from callforme.tel/skill.md, then open Customize, then Skills, click Add and upload it (code execution needs to be on under Settings, then Capabilities). Claude will follow the full call flow more consistently, including polling for questions from the business.

Your first real call in Claude

The first time Claude places a real call, CallForMe sends back a one-time setup link and Claude shows it to you. Open it, check the call it describes, and add $5. Turn on auto-reload (one click right after paying) and the balance tops itself up, so you do this once. Details in how setup links work.

Try it in Claude

Ask for something you actually need called ($1 if answered, nothing if not). Paste this into Claude, with your own business and details:

Call Rosa's Cafe and book a table for 4 this Friday, anywhere between 7 and 8:30pm. Ask for a booth. The reservation is under Alex.

Want to hear one first? Demo lines are fictional and free:

Call Maple Street Pizza at (469) 770-7412 and book a table for 2 tonight at 7 under Alex. Ask for the confirmation number, then tell me how it went.

Questions