List all voice assistants in your Vapi account. Returns IDs, names, and config.

Get full details of a specific Vapi assistant by ID, including its model, voice, and prompt config.

Create a new Vapi voice assistant. You can set its name, first message, system prompt, LLM model, voice, and more.

Update an existing assistant (partial update — only send the fields you want to change).

Permanently delete a Vapi assistant. This cannot be undone.

Fire an outbound call using a Vapi assistant. Needs your Vapi phone number ID and the customer's number in E.164 format (+14155550100).

List calls with optional filters. Returns call IDs, status, cost, and basic info.

Get full details of a call including transcript, recording URL, cost, end reason, and summary.

Force-end an active Vapi call. Useful if a call gets stuck or needs to be terminated from a workflow.

List all phone numbers in your Vapi account. Use the IDs when creating calls.

Get details of a specific Vapi phone number.

List all squads in your account. Squads are groups of assistants that hand off to each other.

Get details of a specific squad including its member assistants.

Create a squad of assistants that can hand off to each other on a call. Great for receptionist → qualifier → closer flows.

Update a squad — rename it or change its members.

Permanently delete a squad.