CosVoice

Install

Pick the AI app you use, then copy the settings.

Passed 4/4 checks · What you ask goes through the maker’s server (cosvoice.com) · ✓ Commands checked Nov 13, 2026

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

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

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

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 14, 2026. The maker wrote them, not us; we show them as plain text.

• 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

  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 befo

• get_line

  Number, email identity, persona, owner, and minutes remaining this period.

• place_call

  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 reach

• book_reservation

  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 an

• 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

  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

  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

  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

  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 it

• forward_email

  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

  Teach the line a number. Roles: approved (reaches the owner), vip (interrupts), blocked (polite wall).

• remove_contact

  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

  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 y

• set_bot_push

  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

• set_webhook

  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 __ .

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 15, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified against the domain cosvoice.com (the registry checks domain ownership)

• ✓ Pass

  Still maintained

  Code last changed 33 days ago

• – Not applicable

  Has a licence

  Not applicable: a cloud server run by the owner of cosvoice.com; you don't run code from the repo

• ✓ Pass

  Endpoint responds

  Responded in 558 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 27 tool descriptions and found no hidden instructions to the AI

What we check → · JSON

User reviews

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Compared with others in Chat & emaili

• More stars than 0% of the other 2056 servers in this category
• Published to the registry more recently than 27% of the other 2056 servers in this category
• Basic checks equal to or better than 100% of the other 2056 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

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README from the maker

https://cosvoice.com/mcp