All servers · APIs & integrations · Audio & speech · Email & messaging

CosVoice

com.cosvoice/cosvoice · v1.0.0

Measured by MCP Station

Description written by the publisher, not verified

A real phone number and email for your AI Chief of Staff. Calls, bookings by phone, summaries.

Connect

claude mcp add --transport http cosvoice https://cosvoice.com/mcp

{
  "mcpServers": {
    "cosvoice": {
      "url": "https://cosvoice.com/mcp"
    }
  }
}

Tools as reported by the server

• get_account
  Who this key belongs to and whether a line exists yet.
• search_numbers
  Find available phone numbers in a US area code for a new line.
• create_line write/delete
  Set up the phone line: claim a number (pick one from search_numbers or just give an area code), name the persona, and register the owner's mobile. An account can own several lines; each needs its own paid plan (if none is waiting, this returns a checkout link). Ask the owner before opting them in to
• get_line
  Number, email identity, persona, owner, and minutes remaining this period.
• place_call write/delete
  Have the line call a real number and hold a live voice conversation on the owner's behalf. Brief it like a human assistant: who to ask for, what you want, acceptable fallbacks, what to do on voicemail. Set connect_owner when the owner wants to be put through once a human is reached (the line waits o
• book_reservation write/delete
  Reserve a table by phone: the line calls the venue, negotiates the time, answers the host's questions (name, callback, email), records policies, and never pays. Give the venue's phone number, party size, date/time, and the acceptable window or fallbacks. Returns reservation_id and call_id; read the
• list_reservations
  Recent reservation requests with their status and the venue's stated policies.
• get_call
  Status, structured notes, outcome, transcript, and annotations for one call.
• list_calls
  Recent calls with summaries, newest first.
• annotate_call write/delete
  Attach a note to a call (what you did about it, a decision, context for the owner). Shows in the dashboard next to the debrief.
• send_text write/delete
  Send an SMS from the line's number. Respects STOP opt-outs. Read the delivery field in the result: while CosVoice's carrier registration (10DLC) is in progress, texts from the line may be filtered by US carriers and not arrive; texts to the line and calls always work.
• ack_instructions write/delete
  Mark owner instructions (texts the owner sent to the line) as handled so they stop being attached to tool results. Pass the ids from the OWNER INSTRUCTIONS notice, or all: true.
• list_messages
  Recent texts to and from the line.
• list_emails
  Email received at and sent from the line's address, newest first (direction inbound|outbound), with forwarding status.
• get_email
  Full text of one email the line received.
• send_email write/delete
  Send an email from the line's own address (handle@cosvoice.com). Reply to a message the line received by passing reply_to_email_id (recipient and subject fill in, threading is kept), or write to the owner. The line may only email people who have emailed it first, its owner, or its Bot inbox. Plain t
• forward_email write/delete
  Forward one received email to one of the line's own inboxes: its forwarding, notification or Bot inbox, or the owner's sign-in address (defaults to the forwarding inbox). It cannot forward to any other address, and a new inbox must be confirmed by its owner first.
• list_contacts
  Owner, approved, VIP, and blocked numbers.
• add_contact write/delete
  Teach the line a number. Roles: approved (reaches the owner), vip (interrupts), blocked (polite wall).
• remove_contact write/delete
  Remove a number from the contacts list (not the owner).
• get_settings
  Persona, voice, greeting, standing instructions, owner, notifications, forwarding, webhook, Bot push, SMS consent.
• update_settings write/delete
  Change any of: name, voice, greeting, instructions, owner_name, owner_phone, timezone, notify_email, agent_email, morning_brief (daily digest on/off), morning_brief_hour (0–23 local), forward_email, forward_mode (relay|raw|off), sms_opt_in, answer_rings (0|1|2). Only the fields you pass change.
• set_bot_push write/delete
  Have CosVoice start YOU the moment something arrives, instead of you polling. Give it the webhook URL and key of a routine of yours that has a Webhook trigger (Grok Bot: Routines → New → trigger Webhook; the URL and a crsr_ key appear). CosVoice POSTs a JSON body with what_to_do plus the ids when th
• set_webhook write/delete
  Set (or clear with an empty url) the HTTPS webhook that receives call.completed, message.received, and email.received. Returns the signing secret once.
• list_history
  Unified history of calls, texts, and email with optional search. The same table as the dashboard.
• recent_activity
  Everything since a timestamp: calls, texts, emails. Catch-up when webhooks were missed.
• list_integrations
  Partner integrations available through this line (groceries, food, reservations, travel…), with status and connect links. Partner tools appear as <partner>__<tool>.

Repository · Website · JSON · Text for agents · Registry updated 2026-09-11