---
title: "Vapi Book Meeting Outbound"
method: POST
path: "/vapi/book-meeting-outbound"
tags: ["Vapi"]
---

# Vapi Book Meeting Outbound

`POST /vapi/book-meeting-outbound`

Book a meeting for an outbound call. Lead info is derived from the Call/OutboundLead records.

Vapi custom tool. Expects arguments: time_slot, caller_timezone (optional),
phone_number (optional override).

## Request body

- VapiCustomToolRequest — Wrapper for Vapi custom tool requests.
  - `message` VapiMessage, required
    - `type` string, required
    - `toolCallList` VapiToolCall[], required
      - `id` string, required
      - `type` string
      - `function` VapiToolCallFunction, required
        - `name` string, required
        - `arguments` object, required
    - `call` VapiCallObject
      - `id` string, required

## Response `201`

Successful Response

- VapiCustomToolResponse — Standard Vapi custom tool response format.
  - `results` VapiToolResult[], required
    - `toolCallId` string, required
    - `result` string, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/openintake/apis/fastapi.md) · [All operations](https://skmtc.dev/openintake/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/openintake/fastapi/revisions/b642b91e0a5c/schema)