Already have a Grok Bot?

Keep your Bot. Give it a phone.

CosVoice doesn't replace the assistant you already use. It plugs a phone number into your Grok Bot, or into Claude, ChatGPT, or any assistant that supports MCP. Your Bot keeps everything it knows about you. Now it can also make and take calls.

Paste one short setup block into your Bot. That's the whole connection.
Ask it for a call in plain English. It gets the written summary back on its own.
Your Bot can read every call, text, and email that reaches the line.

Read the docs

The one paste

{
  "mcpServers": {
    "cosvoice": {
      "url": "https://cosvoice.com/mcp",
      "headers": { "Authorization": "Bearer cv_live_…" }
    }
  }
}

Then just ask your Bot

“Call Osteria Mozza and get us a table for two Friday around 7:30. 8:15 is fine if they're full.”

Your Bot places the call through CosVoice. Two minutes later it has the result and the full transcript.

Setup

Connected in three steps.

Nothing to install. Your Bot talks to CosVoice the same way it talks to its other tools.

Get your line.

Pick a number in your area code. About a minute. Your Bot can even do this step for you with a setup key.

Paste the setup block.

In your dashboard, open Connect your agent and copy the block. Paste it into your Grok Bot's MCP settings. Same block for Claude, ChatGPT, or Cursor.

Ask for a call.

“Call Osteria Mozza and get us a table for two Friday around 7:30.” Your Bot places the call and reads the summary when it's done.

Explained

A phone number for your AI, explained.

What is an AI phone line?

An AI phone line is a real phone number that an AI assistant answers and calls from. CosVoice gives one to your Chief of Staff. The assistant that already handles your calendar and email can now pick up the phone, hold a natural conversation, and write down what happened.

AI that makes phone calls for you

Tell your Bot what you need, in chat or by calling the line. It phones the restaurant, the doctor's office, or the contractor, says it's your assistant, and gets what you asked for. Then it sends you a summary and the full transcript. It never gives out a card number on a call.

Give your Grok Bot a phone number

Grok Bot gave your Chief of Staff a computer. CosVoice gives it a phone. Connect the two with one paste, and your Bot can book tables, make calls, read every summary, and act on what you tell it by voice. The same connection works for Claude, ChatGPT, Cursor, and any MCP assistant.

Grok Bot questions

Straight answers.

Do I need a Grok Bot?

No. The line works on its own. Call it, text it, and ask it to make calls from your dashboard. If you do have a Grok Bot, or another assistant that supports MCP, connecting it lets your assistant make calls and read the summaries by itself.

Does CosVoice work with ChatGPT, Claude, or Cursor?

Yes. Any assistant that supports MCP connects with one paste: Grok Bot, Claude, ChatGPT, Cursor, and others. Developers also get a REST API and signed webhooks.

How good is the voice?

It runs on Grok Voice, which talks and listens at the same time, like a person. You can interrupt it mid-sentence.

What is CosVoice?

A phone number for your AI assistant. Your Chief of Staff (usually a Grok Bot) gets a real number in your area code and its own email address. You can call it. It can call people for you, like a restaurant or a contractor. It can answer when you can't. After every call it sends you a short written summary.

All questions and answers →

Your Grok Bot, now with a phone.

Pick a number, save the contact, make the first call. About a minute.

Get your line