call4me: your AI agent makes phone calls for you

your coding agent (claude code, codex, claude desktop, chatgpt) gets one new tool: make a phone call. it calls the restaurant, the doctor's office, the airline, the hotel, sounds like a normal person, gets it done, and tells your agent what happened.

how it works

load credits (from $10.00, reloads monthly unless you untick it). calls cost $0.25/min of talk time, held up front and settled when the call ends.
you get a key and one prompt. paste the prompt into your agent. it installs call4me itself.
ask for things like normal. "book me a table for 4 at nopa tomorrow around 7."

add credits

want to hear it first? listen to real calls.

top up anytime from my account or ask your agent (call4me_add_funds).

what it's good at

dinner reservations, including "anything between 6:30 and 8"
doctor, dentist, vet, and salon appointments
asking a dealership about a car, price, or service slot
home internet: new service, outages and credits, lowering the bill, moving, cancelling
flight rebooking after a cancellation or delay, date changes, refunds
store hours, stock checks, quotes, "do you do X"
sitting through phone menus and hold music
businesses abroad: europe, the uae and japan from your free us number, plus a local number in any of 16 countries (see the faq)

how it sounds

hear the agent on real calls

short, casual turns. no "certainly!", no support-bot voice.
no recap at the end. it says "perfect, thanks!" and hangs up. your agent gets the recap.
asks your agent mid-call when the business needs something it wasn't given.
it doesn't announce itself. if someone sincerely asks whether it's an AI, it says yes and carries on. see rules.

the prompt

this is what you paste into your agent. it signs you in; sign in here first and your key comes in the prompt instead.

Set up call4me so you can make phone calls for me (book restaurants, doctor's appointments, call businesses for info).

1. Add the call4me MCP server and sign me in. Use whichever matches you:
   - Claude Code:  claude mcp add --scope user --transport http call4me https://call4.me/mcp  (then I run /mcp, pick call4me, and choose authenticate)
   - Codex:        codex mcp add call4me --url https://call4.me/mcp  then  codex mcp login call4me
   - Claude Desktop, claude.ai, or ChatGPT: add a custom connector with the URL https://call4.me/mcp and sign in when it asks.
   - Muse: build a custom integration to the call4me remote MCP server at https://call4.me/mcp (streamable HTTP) with the official MCP SDK. Ask me for my call4me API key (it's at https://call4.me/account) through your secure credential flow, never in chat, store it in your Secure Credentials Store, and send it as Authorization: Bearer <key>. List the tools, test call4me_get_balance, and save it as a reusable skill.
   - Grok Bot: add a custom MCP server called call4me (remote HTTPS, no headers, no auth) at my personal server URL, which I copy from https://call4.me/account. You add it from this chat; no separate approval is needed. If you offer sign-in instead, use https://call4.me/mcp and I sign in.
   - grok.com: you can't add connectors from the chat, so I do it: grok.com/connectors, New Connector, Custom, with the URL https://call4.me/mcp, then I sign in.
   - If you can't sign me in, I copy my personal server URL from https://call4.me/account and you use that instead.
   I sign in with Google or X. If I have no credits yet, I load some at https://call4.me (from $10).

2. Restart or reload MCP servers if needed, then call call4me_get_balance to check it works. Show me my assigned call4me numbers from the returned numbers list, with their countries, and suggest saving them as a contact named call4me. These are the numbers call4me calls from, separate from my own phone saved in my calling profile. If phone_number is null and the numbers list is empty, explain that my free US number is assigned on my first call and you'll show it to me then. Don't invent a number or claim one has already been assigned. Explain that call4me may ring my saved phone when a business needs me to verify my identity. I answer and press 1 to join; pressing * or hanging up hands the call back to the caller. I can also ask to just listen in on a call (listen_in on call4me_place_call, or mode "listen" on call4me_connect_me): nobody hears me, and I press 1 to take over.

3. Set up my calling profile now, so calls never stall on missing details: call call4me_get_profile, then ask me in ONE message for whatever is missing (full legal name as on my ID, date of birth, phone, email, home address, health insurance carrier + member ID + group number or self-pay, dental insurance, my car's year/make/model/mileage/VIN if I have one, frequent flyer numbers and status, and TSA PreCheck/Global Entry Known Traveler Number). Never ask for or save my Social Security number, card numbers, or passwords. Save my answers with call4me_save_profile. Skip anything I decline.

4. From now on, when I ask you to call somewhere:
   - Pick the category and call call4me_get_requirements. Ask me for every required detail you don't already have in one message before dialing (reason for the visit, new or existing patient, which days/times work, party size...). The caller can only say what you give it.
   - Find the number (web search if needed) and make sure it's the right location.
   - Before placing a call with connect_when, give me a heads up that my phone may ring and show the actual call4me number that will ring me. Use the assigned number selected for this call, which can differ by country. If this is my first call and no number is assigned yet, explain that before dialing and show the exact returned calling_number as soon as call4me_place_call returns.
   - Place the call with call4me_place_call. On my first call, or whenever its returned calling_number differs from the one you've already shown me, show me that exact number and suggest saving it as a call4me contact. Then keep calling call4me_get_call until it finishes. If the caller asks a question mid-call, answer it quickly with call4me_answer_question; the business is waiting on the line.
   - Before using call4me_connect_me, give me a heads up with that call's actual calling_number from call4me_get_call. Remind me to answer and press 1 to join, then press * or hang up to hand the call back. Don't use my saved profile phone as the caller number.
   - Tell me the result in one or two lines.

faq

which countries can it call?

every account can call businesses in the us, canada, europe, the uae, and japan from its free us number. european calls go out from your european call4me number if you have one. anywhere else, buy a call4me number in that country and calls there go out from it, so the business sees a local number it can call back cheaply. you can buy numbers in 16 countries today: united states, canada, puerto rico, netherlands, mexico, denmark, iceland, lithuania, ukraine, israel, ghana, philippines, chile, colombia, panama, bolivia. waiting on regulator approval, usually a few days: united kingdom, cyprus, south africa, kenya. calls cost $0.25/min wherever you call, except the uae at $0.40/min, japan at $0.40/min, philippines at $0.40/min, panama at $0.50/min, ghana at $0.60/min, bolivia at $0.60/min, ukraine at $0.65/min.

what does it cost?

$0.25 per minute of talk time, prepaid, from $10.00. each call holds its maximum cost up front and gives back what it didn't use when it ends. unanswered, busy, and failed calls are free.

do i need my own phone number?

no. your first call assigns you a free us number. calls use one of your own call4me numbers, depending on the country you're calling. when a business calls that number back, call4me answers, finishes the task if it was left open, or takes a message for your agent.

how do extra numbers work?

ask your agent (call4me_buy_number) or use my account. a number costs exactly what our phone carrier charges us, 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, muse, grok bot, and anything else that speaks mcp. paste the prompt above and your agent sets itself up.

can i use it with muse?

yes. paste the prompt above into muse and it builds its own call4me integration, asking for your api key (from your account page) through its secure credential prompt. then it makes calls for you from the chat.

can i use it with grok bot?

yes. paste the prompt above into grok bot and approve when it asks to add the custom mcp server, and it can make calls for you. on grok.com, add it yourself under grok.com/connectors → new connector → custom.

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 and it sounds like a normal person calling for you. if someone sincerely asks, it says yes and carries on. it never pretends to be you. see rules.

are calls recorded? where can i listen?

yes. our phone carrier (Telnyx) records calls. after a call ends, open it in my 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.