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Your AI agent phones businesses for you: books, reschedules, cancels, asks, and waits on hold.
call4me gives your personal AI assistant or coding agent the ability to make phone calls through MCP. Your agent can call businesses to book appointments, reschedule or cancel, ask questions, and wait on hold. It follows your brief and brings the result back to the task your agent is already doing.
Which countries can it call? The US, Canada, the EU, the UK, Iceland, Liechtenstein, Norway, Switzerland, the UAE, and Japan work with your free US number. Other supported destinations may need a local call4me number. Check availability in your account.
What does it cost? From $0.25 per minute from pickup by a person or automated system, including phone menus and hold time, rounded up to the minute. Prepaid credits start at $10.00. Each call reserves its maximum cost and returns unused credit when it ends. Unanswered, busy, and failed calls are free. Higher rates apply for certain countries. Monthly reload is on by default; untick it before paying or stop it in your account.
Can it wait on hold and ring me when someone answers? Yes. Ask your agent to have call4me ring you as soon as a person picks up. It calls your saved phone, and you press 1 to join. Phone menus and hold time cost the same per minute as the conversation. There is no discounted hold rate. Ask your agent to set a maximum call length to cap the cost, or schedule the call for a quieter time.
Do I need my own phone number? No. call4me provides a free US number, and the agent answers callbacks to it. You can also verify your own number as caller ID; callbacks then go directly to your phone.
How do extra numbers work? Ask your agent (call4me_buy_number) or use your account. A number costs exactly what the phone carrier charges, no markup: its upfront cost plus the first month when you buy it, then the monthly cost every 30 days from your credits. Your account page shows each country's price. If your credits can't cover a renewal, the number is released after 7 days. You can release a number anytime.
Which agents does it work with? Claude Code, Codex, Claude Desktop, claude.ai, ChatGPT, Grok Bot, and other MCP clients. Muse can build its own integration. Follow the setup prompt; some apps need you to add the connector yourself.
Can I jump on the call myself? Yes. Tell your agent to connect you "as soon as a person picks up" to skip the hold music, or ask during the call. call4me may also ring you if the business needs you to verify your account. Your agent should tell you what number to expect. Answer and press 1 to join (so your voicemail never ends up on it); press * or hang up to hand it back. Or ask to just listen in: nobody on the call hears you, the agent keeps working, and you press 1 anytime to take over.
Will they know it's an AI? It doesn't announce itself. If asked whether it's an AI, it says yes. It calls for you and never claims to be you.
Are calls recorded? Where can I listen? Yes. The phone carrier (Telnyx) records calls. After a call ends, open it in your account to play or save its recording and read the transcript. You can also ask your agent for the recording. It can take a minute to appear after hangup.
Who can it call? Businesses and services you want to reach. No telemarketing, no surveys, no calling people who don't expect it, no emergency or premium-rate numbers.
