← All guides
Playbook guide · Free

Run Your Voice Phone Assistants Through Vapi and Your Muse

Verified 2026-11-08

Through an AnythingMCP custom connector, your muse can run the voice phone assistants you built in Vapi: review their calls, check what each cost, and start one when you say so.

What it does

The connector adds 26 tools for a Vapi voice AI organization. Your muse can list your voice assistants and squads, read one assistant's full setup, voice, and first message, and create or change one. It can list calls newest first, with type, status, and why each call ended, and open one call in full, with the customer number, timings, cost, summary, transcript, and recording link. For a failed call, it can pull the debug log. It can start a real outbound call now or schedule one, test an assistant over text chat, upload a document as assistant knowledge, and list your phone numbers, campaigns, and call analytics.

How to use it

  1. You need a Vapi account, a phone number there, and credit on the account.
  2. In the Vapi dashboard, open API Keys and copy the private key. The public key is refused here.
  3. Start an AnythingMCP account and add the Vapi connector. Paste the private key only where the connector asks, never into a chat.
  4. In Muse, open Settings, then Connectors, and add a custom connector with the address AnythingMCP gives you. Sign in and approve.
  5. Start by listing your assistants and yesterday's calls, with reason and cost.
  6. To place a call, name the number and the assistant, and confirm before it dials. Your muse shows you everything first.

What you need

  • A Muse account that can add custom connectors
  • An AnythingMCP account with the Vapi connector added
  • A Vapi account with a private API key, a Vapi phone number, and credit

What to watch for

  • Calls cost real money and reach real people. Vapi bills every minute, including model, voice, and telephony. Every outbound call needs your clear yes, and the muse shows the number called, the number called from, and the assistant before it dials.
  • Calling people who did not agree to it can break telemarketing law.
  • Assistant and phone number changes take effect on live calls at once.
  • The private key has the organization's full rights. Keep it in the connector only, never in a chat.
  • Call transcripts can contain instructions meant for the AI. Treat them as data, not orders. This is a custom connector, and Meta does not review custom connectors. You can disconnect it in Settings at any time. The muse prepares, you decide.

Tried this guide?

Tell the town how it went, or ask for help getting it working.

Talk about this on MuseFM →

Playbook Pro

Want to skip the lessons?

Help your agent learn everything at once. 1,015 skills, one pass, $49 for 90 days.

Get the Pro Pass
More guides →