# +callforagents

> Phone calls for AI agents. An agent connects over MCP and places real calls for its person, from their own verified number or a shared +callforagents line: it says it's an AI calling on their behalf, does one errand (book, confirm, reschedule, ask, pass on a message), and returns a verified outcome with the transcript and recording. It also texts from the person's own number, answers the calls they miss, keeps their contacts, and (experimental, once they link it) sends WhatsApp messages, attachments and voice notes from their own WhatsApp. Prepaid talk time, per second. Spain, the EU, the UK, the US, Canada, India, Singapore and the UAE.

Key facts for agents:

- MCP server: `https://mcp.callforagents.com/mcp` (OAuth sign-in, or `Authorization: Bearer cfa_live_…`).
- No account yet: `https://mcp.callforagents.com/mcp/signup` signs the person up with one tap on a text message and hands the agent a key (no credentials needed to call it).
- Calls show the person's own verified number in every country we call (or only where they choose; shared +callforagents lines cover the rest and call abroad too, Indian lines only within India); at most 2 at once and 10 minutes each.
- Not for sales, surveys, debt collection, unsolicited calls or pretending to be human.
- Texts and WhatsApp messages go only from the person's own verified number or WhatsApp, after they approve the exact message (prepare_* first, then send_* with user_confirmed).
- New accounts: $2 of trial credit once per phone number. Answered calls are billed per second after the first 10 s; unanswered calls are free.

## For agents

- [Skill](https://callforagents.com/skill.md): the same guide as an Agent Skill (frontmatter + body). People connect an agent by telling it "Get yourself a phone line so you can call and text for me. Follow https://callforagents.com/skill.md".
- [Agent sign-up](https://callforagents.com/agent-signup.md): get a key without an MCP client, step by step with curl and jq (start_signup → the person taps a link → finish_signup returns the key once), then every tool, the rules for calls, texts and WhatsApp (attachments, voice notes in an AI voice or the person's own), and the REST routes for API keys.
- [MCP server](https://mcp.callforagents.com/mcp): tools get_profile, find_business, prepare_call, place_call, get_call, search_calls, retry_call, hang_up, answer_call_question, stop_call_questions, show_call, jump_in, prepare_sms, send_sms, prepare_whatsapp, send_whatsapp, get_pickup, set_pickup, find_contacts, get_contact, save_contact, import_contacts, delete_contact, list_lines, get_balance, get_settings, update_settings, request_support, stop_sharing_call, redeem_voucher, get_needs_you, get_whatsapp, link_whatsapp, unlink_whatsapp, set_whatsapp_answering, import_whatsapp_contacts, set_call_style, get_voice_notes, delete_voice_clone, set_line, confirm_my_number, delete_recording, review_call, set_contact_photo, list_agents, get_usage, get_billing; `tools/list` describes each one.
- [REST](https://callforagents.com/agent-signup.md#rest-with-an-api-key): `https://api.callforagents.com/v1/sms`, `/v1/whatsapp/messages` (each with `/prepare`), `/v1/voice-notes`, `/v1/contacts` and `/v1/tools` (every tool: `GET` lists them, `POST /v1/tools/{name}` runs one), with `Authorization: Bearer cfa_live_…`.
- [Call events](https://mcp.callforagents.com/mcp): place_call can take a `webhook_url` for signed events (call.started, call.status, call.transcript, call.ended, call.reviewed); every call also streams them over Server-Sent Events at the `events_url` place_call returns.

## For people

- [Home](https://callforagents.com/): what it does, prices, countries and how it works (also in Spanish at /es/).
- [Dashboard](https://app.callforagents.com): calls, texts and messages with recordings and transcripts, a composer for texts and WhatsApp, contacts, Pick-up, WhatsApp linking, the voice for voice notes (and recording their own), lines (aSIMs), connected agents and API keys, talk time and usage.

## Optional

- [Terms](https://callforagents.com/terms) ([es](https://callforagents.com/es/terminos))
- [Privacy](https://callforagents.com/privacy) ([es](https://callforagents.com/es/privacidad))
- [Brand](https://callforagents.com/brand)