# Vapi AI integration on Definable

> Vapi is a voice AI platform that enables developers to build, test, and deploy voice agents with natural conversations, real-time responses, and seamless integration capabilities.

## What this connects

Vapi is a voice AI platform that enables developers to build, test, and deploy voice agents with natural conversations, real-time responses, and seamless integration capabilities.

Vendor: https://vapi.ai

## Tools available

**38** tools available. First 12:

- `VAPI_ASSISTANT_CONTROLLER_UPDATE` — Update Assistant — Tool to update an existing Vapi assistant configuration. Use when you need to modify assistant properties such as name, voice settings, transcriber configuration, model settings, messages, or other behavior parameters. Only include fields you want to update.
- `VAPI_CALL_CONTROLLER_FIND_ALL` — List Calls — Tool to list calls from Vapi. Use when you need to retrieve multiple calls with optional filtering by id, assistantId, phoneNumberId, or date ranges. Returns an array of call objects with details including status, costs, messages, and artifacts.
- `VAPI_CHAT_CONTROLLER_DELETE_CHAT` — Delete Chat — Tool to delete a chat by its ID from Vapi. Use when you need to permanently remove a chat conversation.
- `VAPI_CHAT_CONTROLLER_GET_CHAT` — Get Chat — Tool to fetch chat details by ID. Use when you have a chat ID and need full chat information including messages, costs, and configuration.
- `VAPI_CREATE_ANALYTICS_QUERY` — Create Analytics Queries — Tool to create and execute analytics queries on VAPI data. Use when you need to analyze call or subscription metrics with aggregations like count, sum, average, min, or max. Supports grouping by various dimensions and time-based analysis with custom time ranges.
- `VAPI_CREATE_ASSISTANT` — Create Assistant — Tool to create a new Vapi assistant with specified transcriber, voice, and AI model configurations. Use when setting up a conversational AI assistant for voice interactions. The assistant requires transcription (speech-to-text), voice (text-to-speech), and AI model (conversation logic) configurations at minimum.
- `VAPI_CREATE_EVAL` — Create Eval — Tool to create an eval for testing conversation flows. Use when you need to validate that an AI assistant responds correctly to specific conversation scenarios.
- `VAPI_CREATE_OPEN_AI_CHAT` — Create OpenAI Chat — Tool to create an OpenAI-compatible chat using the Vapi API. Use when you need to send a chat message to an assistant or squad and receive a response. Supports both streaming and non-streaming modes.
- `VAPI_CREATE_POLICY` — Create Monitoring Policy — Tool to create a monitoring policy in VAPI. Use when you need to set up automated monitoring rules based on thresholds and time windows. Policies can trigger alerts based on event counts or percentages over a specified lookback window.
- `VAPI_CREATE_PROVIDER_RESOURCE` — Create Provider Resource — Tool to create an 11Labs pronunciation dictionary resource. Use when you need to define custom pronunciations for specific terms or acronyms in voice synthesis.
- `VAPI_CREATE_SCORECARD` — Create Scorecard — Tool to create a scorecard for observability and evaluation. Use when setting up metrics to evaluate assistant performance based on structured outputs. Scorecards contain metrics with conditions that calculate normalized scores on a 100-point scale.
- `VAPI_DELETE_CALL` — Delete Call — Tool to delete a call by its unique identifier. Use when you need to remove call data from the system. Returns the deleted call object with all its associated data.

## Auth

Auth schemes: `API_KEY`.

## How agents use Vapi

Inside a Definable workflow, Vapi is one of the tools the **Distributor specialist** can call. Example coordination patterns:

- **Researcher → Vapi** — the Researcher (GPT-5.5) pulls context from Vapi (records, threads, documents), synthesises findings, and briefs the rest of the team.
- **Writer → Distributor → Vapi** — the Writer (Claude Opus 4.7) drafts copy in brand voice, the Verifier passes it, then the Distributor writes the result into Vapi (create record, post message, draft email).
- **Designer / Engineer → Distributor → Vapi** — the Designer ships an asset or the Engineer ships a code change, the Distributor delivers it via Vapi (attach file, open PR comment, post status).

The Verifier checks every Vapi call. On rate limit, schema drift, or auth refresh it self-heals and retries — the workflow completes without manual intervention.

## Categories

- artificial intelligence — https://definable.ai/apps/category/artificial-intelligence/
- developer tools — https://definable.ai/apps/category/developer-tools/

## Related

- HTML page: https://definable.ai/apps/vapi/
- Same category (artificial intelligence): https://definable.ai/apps/category/artificial-intelligence/
- All integrations: https://definable.ai/apps/
- Workflow (multi-agent loop): https://definable.ai/workflow/
- Apps llms.txt index: https://definable.ai/llms-apps.txt