MCP server

CosVoice Official

com.cosvoice/cosvoice

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website Source

At a glance

Type

MCP server

Publisher

cosvoice.com (verified by the MCP Registry)

Status

Working at last check

Tools

27

Token cost

About 4,551 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.cosvoice]
url = "https://cosvoice.com/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"cosvoice":{"type":"http","url":"https://cosvoice.com/mcp"}}}

Antigravity

agy mcp add cosvoice https://cosvoice.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"cosvoice","server_url":"https://cosvoice.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"cosvoice","server_url":"https://cosvoice.com/mcp"}

Tools

• ack_instructions ~138 tokens
  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.
• add_contact ~121 tokens
  Teach the line a number. Roles: approved (reaches the owner), vip (interrupts), blocked (polite wall).
• annotate_call ~99 tokens
  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.
• book_reservation ~603 tokens
  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
• create_line ~520 tokens
  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
• forward_email ~131 tokens
  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.
• get_account ~53 tokens
  Who this key belongs to and whether a line exists yet.
• get_call ~69 tokens
  Status, structured notes, outcome, transcript, and annotations for one call.
• get_email ~60 tokens
  Full text of one email the line received.
• get_line ~58 tokens
  Number, email identity, persona, owner, and minutes remaining this period.
• get_settings ~71 tokens
  Persona, voice, greeting, standing instructions, owner, notifications, forwarding, webhook, Bot push, SMS consent.
• list_calls ~68 tokens
  Recent calls with summaries, newest first.
• list_contacts ~50 tokens
  Owner, approved, VIP, and blocked numbers.
• list_emails ~90 tokens
  Email received at and sent from the line's address, newest first (direction inbound|outbound), with forwarding status.
• list_history ~124 tokens
  Unified history of calls, texts, and email with optional search. The same table as the dashboard.
• list_integrations ~86 tokens
  Partner integrations available through this line (groceries, food, reservations, travel…), with status and connect links. Partner tools appear as <partner>__<tool>.
• list_messages ~66 tokens
  Recent texts to and from the line.
• list_reservations ~80 tokens
  Recent reservation requests with their status and the venue's stated policies.
• place_call ~405 tokens
  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
• recent_activity ~71 tokens
  Everything since a timestamp: calls, texts, emails. Catch-up when webhooks were missed.
• remove_contact ~64 tokens
  Remove a number from the contacts list (not the owner).
• search_numbers ~89 tokens
  Find available phone numbers in a US area code for a new line.
• send_email Sends messages · ~208 tokens
  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
• send_text Sends messages · ~135 tokens
  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.
• set_bot_push ~247 tokens
  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 ~89 tokens
  Set (or clear with an empty url) the HTTPS webhook that receives call.completed, message.received, and email.received. Returns the signing secret once.
• update_settings ~756 tokens
  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.

Browse

• Email
• SMS and text messages
• Travel and flights

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