How do I install Cosvoice?

Cosvoice is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Is Cosvoice safe to use?

Yes. Cosvoice passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with Cosvoice?

Cosvoice uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Cosvoice MCP Server

by Andyfathollahi

Developer ToolsLow Risk10.0MCP RegistryRemote

Free

Server data from the Official MCP Registry

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

About

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

Remote endpoints: streamable-http: https://cosvoice.com/mcp

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.

Endpoint verified · Requires authentication · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Found in Source Code

Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.

HTTP Network Access

Connects to external APIs or services over the internet.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

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

Documentation

View on GitHub

From the project's GitHub README.

CosVoice for Grok Bot, Claude, ChatGPT, and Cursor

An office for your AI Bot. CosVoice gives an AI assistant a real phone number (in your area code), a real email address, and a desk that keeps notes. The assistant can place calls for you, book restaurants by phone, answer the calls you miss, and read a written summary of every call. The voice on the line is Grok Voice, full duplex, and it always says it is an AI assistant when asked.

Website: https://cosvoice.com · Setup page written for the assistant: https://cosvoice.com/skill

Connect in one paste

https://cosvoice.com/mcp

Add that as a remote MCP server (Streamable HTTP). CosVoice uses OAuth 2.1 with PKCE and dynamic client registration, so a CosVoice page opens, you sign in, click Allow, and the assistant is connected. There is no API key to copy.

Client	How
Grok Bot / Grok	Settings → Plugins → add a custom MCP server by URL, or install this plugin
Claude (web, desktop, Code)	Add a custom connector / `claude mcp add --transport http cosvoice https://cosvoice.com/mcp`
ChatGPT	Settings → Connectors → add MCP server by URL (developer mode)
Cursor	Add to Cursor or paste the URL under Settings → MCP

Clients that only support a static header can use a key from Settings → Connect your agent as Authorization: Bearer cv_live_….

Then let the assistant set itself up

Send it: "Set up my CosVoice line in area code 949. Call it Lloyd."

It calls search_numbers, shows you options, and create_line. Payment comes first: if no plan is on file, create_line returns a checkout link for you to complete, then the number is issued.

What it can do

Tool	What it does
`get_account`, `search_numbers`, `create_line`	First-run setup: check the account, find numbers in an area code, create the line
`place_call`	Call a real number and hold a live conversation on your behalf (async; poll `get_call`)
`book_reservation`	Book a table by phone with a time window, fallbacks, seating, occasion, dietary notes
`get_call`, `list_calls`, `list_reservations`, `annotate_call`	Summaries, structured details, transcripts, outcomes
`send_text`, `list_messages`	Texts from and to the line (STOP respected)
`list_emails`, `get_email`, `forward_email`	The line's own inbox
`list_contacts`, `add_contact`, `remove_contact`	Owner, approved, VIP, blocked callers
`get_settings`, `update_settings`, `set_webhook`	Persona, voice, greeting, standing instructions, `call.completed` webhooks
`ack_instructions`	Texts you send the line from your own phone arrive as instructions on every tool result; acknowledge when handled
`list_history`, `recent_activity`, `list_integrations`	Unified history, catch-up since a timestamp, partner tools

What this repo contains

skills/cosvoice/SKILL.md — the skill (same text as https://cosvoice.com/skill)
.mcp.json — the hosted server entry (type: http, OAuth)
.grok-plugin/plugin.json and .claude-plugin/plugin.json — plugin manifests
server.json — the official MCP Registry entry (com.cosvoice/cosvoice)

No code runs on your machine. The plugin only points your client at the hosted server.

Rules the line follows

Never pays or reads out a card. Always says it is an AI assistant when asked. Uses its own number and email as the callback unless you say otherwise. Never claims a booking unless the call outcome says so. Respects STOP for texts.

Pricing

Starter $29/mo (60 min), Plus $69/mo (200 min), Pro $149/mo (600 min), overage $0.25/min. One number per paid month. Details: https://cosvoice.com/pricing

Links

Trust and safety: https://cosvoice.com/trust · FAQ: https://cosvoice.com/faq · Privacy: https://cosvoice.com/privacy · Terms: https://cosvoice.com/terms · Support: hello@cosvoice.com

MIT licensed. CosVoice is a product of MimesisIQ.

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