MCP.Market

CosVoice MCP server

online · 100% uptime
by cosvoice.com·com.cosvoice/cosvoice·v1.0.0
No reviews yet

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

A97/100grade A
Write a reviewRun it
What users say
No reviews yet
Be the first
Safety scan
A97/100

full report

Adoption
Growing

0 stars

Reviews

Write one

Nobody has reviewed CosVoice yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

CosVoice tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-10-14 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 291ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenancelast push 2 days ago15/15
  • Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace8/10
Overall 97/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How CosVoice compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
97/100
higher than 95% of 916 Email servers
Uptime
100%
of our recent checks; the typical remote Email server answers 100%
Response time
834 ms
faster than 13% of 609 Email servers

Install CosVoice in Claude Code, Cursor or VS Code

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

What the publisher says

From the CosVoice repository's README, as published. We do not edit it. Read it on GitHub

CosVoice for Grok Bot, Claude, ChatGPT, and Cursor

Give your Chief of Staff a phone. CosVoice gives an AI assistant its own real phone number (in your area code) and its own email address. 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.

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

Then let the assistant set itself up

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

It calls searchnumbers, shows you options, and createline. 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

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

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

CosVoice: common questions

Is CosVoice MCP server safe?
Yes, by our scan: it is graded A (97/100). Read the CosVoice safety report
How do I install CosVoice?
It runs remotely at cosvoice.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does CosVoice need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is CosVoice maintained?
The last commit was 22 days ago (2026-10-13). The latest release is v1.0.0.
Is CosVoice up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of CosVoice?
Servers from other publishers that do the same job: Hail MCP server, ParseAPI MCP server and Palmyr MCP server.
How does CosVoice compare with other Email MCP servers?
safety score 97/100 (higher than 95% of 916 Email servers); uptime 100% (of our recent checks; the typical remote Email server answers 100%); response time 834 ms (faster than 13% of 609 Email servers). Full comparison.

Alternatives to CosVoice

Same job from other publishers: the closest match first, then the best rated.

  • Hail
    Phone, SMS and email for AI agents. One remote MCP endpoint, OAuth login, zero install.
    B
  • ParseAPI
    Official ParseAPI MCP. Place, IP, email, phone, weather lookups.
    A
  • Palmyr
    Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.
    B
  • Mailoo - Email MCP Server
    Email MCP server for AI agents: IMAP/SMTP, Gmail, Outlook, calendar, ManageSieve, AI triage, OAuth2.
    A
  • emailmd
    Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
    A