Get your line.
Pick a number in your area code. About a minute. Or let your Bot do it: connect it first, then paste the sentence below.
CosVoice doesn't replace the assistant you already use. It plugs a phone number into your Grok Bot, or into an OpenAI dot, Claude, ChatGPT, or any assistant that supports MCP. Your Bot keeps everything it knows about you. Now it can also make and take calls.
https://cosvoice.com/mcp
Add it as an MCP server by URL. A CosVoice page opens, you click Allow, and your Bot is connected. No key to copy.
Or hand your Bot the setup page written for it: cosvoice.com/skill. Using Cursor? Add to Cursor in one click.
“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. When the call ends, CosVoice wakes it with the result and the full transcript. You just read the summary.
Skip all of this. Add our ready-made Bot in one tap and it sets its own line up for you. The steps below are for the Bot you already use. New to all of this? See what a phone line adds to Grok.
Nothing to install. Your Bot talks to CosVoice the same way it talks to its other tools.
Pick a number in your area code. About a minute. Or let your Bot do it: connect it first, then paste the sentence below.
In your dashboard, open Connect your agent and copy the block. Paste it into your Grok Bot's MCP settings. Same block for an OpenAI dot, Claude, ChatGPT, or Cursor.
“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.
Add https://cosvoice.com/mcp to your Bot, sign in and click Allow, then send it this. Prefer to let it read the instructions itself? Give it cosvoice.com/skill.
Set up my CosVoice line in area code 949.
Paste that into your Bot once it's connected to CosVoice. It will search numbers in 949, pick one, and create the line.
Most tools give an assistant something to look at. CosVoice taps it on the shoulder. When something happens on your line, CosVoice starts your Bot itself, with the task written out and the ids it needs to act. The Bot is already connected to the line, so it just does the work.
“Move my Thursday cleaning to next week.” Your Bot starts within seconds, places the call through the line, and tells you when it's done. You never opened the Bot.
A quote lands at your line's address. Your Bot wakes, reads it, and replies from the same address or leaves you a note. Its own inbox, working both ways.
The moment the line hangs up, your Bot has the outcome and the transcript. If the call didn't get it done, the Bot decides the next step instead of waiting to be asked.
In Grok, make a routine with the Webhook trigger. It gives you a URL and a key. Paste both into Settings → Connect → Wake your Bot, or just tell your Bot “set up your CosVoice Bot push” and it does it itself. Two minutes, once.
A phone your Bot has to keep checking is a phone it will miss. A phone that wakes your Bot is one it answers. Pick which moments wake it. Turn it off any time. Works with any assistant that has a webhook URL and a token.
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.
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.
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.
No. Switch on Bot push and CosVoice wakes your Bot itself when something happens: you text the line an instruction, an email arrives, a call finishes. In Grok, make a routine with a Webhook trigger and paste its URL and key into Settings → Connect → Wake your Bot, or tell your Bot to set it up. From then on nothing waits for a check-in. It works with any assistant that has a webhook URL and a token.
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.
Yes. Any assistant that supports MCP connects with one paste: Grok Bot, OpenAI dots, Claude, ChatGPT, Cursor, and others. The steps for a dot are at cosvoice.com/integrations/openai-dots. Meta's Muse takes a different road, because it writes its own connector: you make an API key and Muse reads our published spec at cosvoice.com/openapi.json. The steps are at cosvoice.com/muse. Any of them can be woken by CosVoice if it has a webhook URL and a token. Developers also get a REST API and signed webhooks.
Yes, a real one: yourname@bot.cosvoice.com. Mail that arrives there is stored on the line, forwarded where you want, and can wake your Bot. Your Bot can also write back from that address, replying in the same thread, to people who have written to it first. So the line's email works in both directions without a separate mail product. Forwarding goes only to an inbox you saved in Settings, and a new inbox has to press Confirm in a message we send it first. That keeps a line from being used to send mail to strangers.
Good enough that callers treat it as a person. You pick from 38 voices in two sets, the new ones and the classic ones, and change any time in Settings. Every voice has a play button, and you can hear full calls on the demo page.
Free for 7 days with 10 minutes of calls. Then $29 a month unless you cancel.