Vapi (vapi.ai) — OpenClaw Skill

Use this skill when you need to manage Vapi voice agents (assistants), calls, phone numbers, tools, and webhooks from an OpenClaw agent.

This skill is API-first (Vapi REST) and optionally integrates with the Vapi CLI for MCP docs / local workflows.

What you can do

• Create/update/list assistants
• Start/inspect/end calls
• Manage phone numbers
• Create/manage tools (function calling)
• Configure webhooks and inspect events

Required secrets

Set one of:

• VAPI_API_KEY (recommended) — Vapi dashboard API key.

How to provide the key (recommended)

• Store as a Gateway secret/env var (preferred), or
• Export in your shell before running helper scripts.

Never paste the key into public logs.

Endpoints

Base URL:

• https://api.vapi.ai

Auth:

• Authorization: Bearer $VAPI_API_KEY

API reference:

• https://api.vapi.ai/api (Swagger)

Tooling options

This skill supports both approaches; you can decide later per deployment.

• Set VAPI_MODE=api to prefer REST (default)
• Set VAPI_MODE=cli to prefer the Vapi CLI (interactive)

Option A — REST via helper script (works everywhere)

This repo includes a tiny Node helper:

• skills/vapi/bin/vapi-api.mjs

Examples:

# list assistants
VAPI_API_KEY=... node skills/vapi/bin/vapi-api.mjs assistants:list

# create assistant
VAPI_API_KEY=... node skills/vapi/bin/vapi-api.mjs assistants:create 
  --name "Claw Con Concierge" 
  --modelProvider openai --model gpt-4o-mini 
  --voiceProvider 11labs --voiceId rachel

# start an outbound call (example shape; see swagger for required fields)
VAPI_API_KEY=... node skills/vapi/bin/vapi-api.mjs calls:create 
  --assistantId asst_xxx 
  --to "+14155551234" 
  --from "+14155559876"

Option B — Vapi CLI (good for interactive ops)

If VAPI_MODE=cli, prefer using the CLI for management tasks and fall back to REST if the CLI isn’t installed.

Docs: - https://docs.vapi.ai/cli - https://github.com/VapiAI/cli

Install:

curl -sSL https://vapi.ai/install.sh | bash
vapi login

Option C — MCP docs server for your IDE

This improves IDE assistance (Cursor/Windsurf/VSCode): - https://docs.vapi.ai/cli/mcp

vapi mcp setup

Agent usage guidance

When the user asks for Vapi changes:

1. Clarify scope: assistants vs phone numbers vs webhooks vs tool calls.
2. Prefer read-only queries first (list/get) before destructive changes.
3. When creating an assistant, ask for:
4. assistant name
5. model provider/model
6. voice provider/voice id
7. tools/function calling needs
8. webhook URL (if using server events)
9. When initiating calls, confirm:
10. to/from numbers
11. assistantId
12. compliance constraints (recording, consent)

Files in this skill

• skills/vapi/SKILL.md — this file
• skills/vapi/bin/vapi-api.mjs — minimal REST helper

Sources

• Vapi docs intro: https://docs.vapi.ai/quickstart/introduction
• Vapi CLI: https://github.com/VapiAI/cli
• Vapi MCP: https://docs.vapi.ai/cli/mcp
• Vapi API (Swagger): https://api.vapi.ai/api
• Example server (Node): https://github.com/VapiAI/example-server-javascript-node
• OpenClaw: https://github.com/openclaw/openclaw