elevenlabs-webhooks
Receive and verify ElevenLabs webhooks. Use when setting up ElevenLabs webhook handlers, debugging signature verification, or handling call transcription events.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/hookdeck/webhook-skills --skill elevenlabs-webhooks- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads elevenlabs-webhooks automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
ElevenLabs Webhooks
When to Use This Skill
- Setting up ElevenLabs webhook handlers
- Debugging signature verification failures
- Understanding ElevenLabs event types and payloads
- Processing call transcription events
- Handling voice removal notifications
Essential Code
Signature Verification (SDK — Recommended)
ElevenLabs recommends using the official @elevenlabs/elevenlabs-js SDK for webhook verification and event construction. See Verify the webhook secret and construct the webhook payload.
// Express.js / Node example
const { ElevenLabsClient } = require('@elevenlabs/elevenlabs-js');
const elevenlabs = new ElevenLabsClient({
apiKey: process.env.ELEVENLABS_API_KEY || 'webhook-only'
});
// In your webhook handler: get raw body and signature header, then:
const event = await elevenlabs.webhooks.constructEvent(rawBody, signatureHeader, process.env.ELEVENLABS_WEBHOOK_SECRET);
// event is the parsed payload; SDK throws on invalid signature
// Next.js example
import { ElevenLabsClient } from '@elevenlabs/elevenlabs-js';
const elevenlabs = new ElevenLabsClient({
apiKey: process.env.ELEVENLABS_API_KEY || 'webhook-only'
});
export async function POST(request: NextRequest) {
const rawBody = await request.text();
const signatureHeader = request.headers.get('ElevenLabs-Signature');
try {
const event = await elevenlabs.webhooks.constructEvent(
rawBody,
signatureHeader,
process.env.ELEVENLABS_WEBHOOK_SECRET
);
// Handle event.type, event.data...
return new NextResponse('OK', { status: 200 });
} catch (error) {
return NextResponse.json({ error: (error as Error).message }, { status: 401 });
}
}
Python SDK Verification (FastAPI)
import os
from fastapi import FastAPI, Request, HTTPException
from elevenlabs import ElevenLabs
from elevenlabs.errors import BadRequestError
app = FastAPI()
elevenlabs = ElevenLabs(api_key=os.environ.get("ELEVENLABS_API_KEY") or "webhook-only")
@app.post("/webhooks/elevenlabs")
async def elevenlabs_webhook(request: Request):
raw_body = await request.body()
sig = request.headers.get("ElevenLabs-Signature") or request.headers.get("elevenlabs-signature")
if not sig:
raise HTTPException(status_code=400, detail="Missing signature header")
try:
event = elevenlabs.webhooks.construct_event(
raw_body.decode("utf-8"),
sig,
os.environ["ELEVENLABS_WEBHOOK_SECRET"]
)
# Handle event["type"], event["data"]...
return {"status": "ok"}
except BadRequestError as e:
raise HTTPException(status_code=401, detail="Invalid signature")
The SDK (Node/TypeScript and Python) verifies the signature, validates the timestamp (30-minute tolerance), and returns the parsed event. On failure it throws; return 401 and the error message.
Common Event Types
| Event | Triggered When | Common Use Cases |
|---|---|---|
post_call_transcription | Call analysis completed | Process call insights, save transcripts |
voice_removal_notice | Notice that voice will be removed | Notify users, backup voice data |
voice_removal_notice_withdrawn | Voice removal notice cancelled | Update user notifications |
voice_removed | Voice has been removed | Clean up voice data, update UI |
Environment Variables
ELEVENLABS_WEBHOOK_SECRET=your_webhook_secret_here
Local Development
For local webhook testing, install Hookdeck CLI:
# Install via npm (recommended)
Then start the tunnel:
npx hookdeck-cli listen 3000 elevenlabs --path /webhooks/elevenlabs
No account required. Provides local tunnel + web UI for inspecting requests.
Resources
- Overview - What ElevenLabs webhooks are, common event types
- Setup - Configure webhooks in ElevenLabs dashboard, get signing secret
- Verification - Signature verification details and gotchas
- Express Example - Complete Express.js implementation
- Next.js Example - Next.js App Router implementation
- FastAPI Example - Python FastAPI implementation
Recommended: webhook-handler-patterns
We recommend installing the webhook-handler-patterns skill alongside this one for handler sequence, idempotency, error handling, and retry logic. Key references (open on GitHub):
- Handler sequence — Verify first, parse second, handle idempotently third
- Idempotency — Prevent duplicate processing
- Error handling — Return codes, logging, dead letter queues
- Retry logic — Provider retry schedules, backoff patterns
Related Skills
- stripe-webhooks - Stripe payment webhook handling
- shopify-webhooks - Shopify e-commerce webhook handling
- github-webhooks - GitHub repository webhook handling
- resend-webhooks - Resend email webhook handling
- chargebee-webhooks - Chargebee billing webhook handling
- clerk-webhooks - Clerk auth webhook handling
- openai-webhooks - OpenAI webhook handling
- paddle-webhooks - Paddle billing webhook handling
- webhook-handler-patterns - Handler sequence, idempotency, error handling, retry logic
- hookdeck-event-gateway - Webhook infrastructure that replaces your queue — guaranteed delivery, automatic retries, replay, rate limiting, and observability for your webhook handlers
Official ElevenLabs SDK Skills
For making API calls TO ElevenLabs (text-to-speech, transcription, agents), see the official ElevenLabs Skills. This skill handles the opposite direction: receiving webhooks FROM ElevenLabs.
SDK Warning: Always use
@elevenlabs/elevenlabs-jsfor JavaScript. Do not usenpm install elevenlabs(that's an outdated v1.x package).
FAQ
What does the elevenlabs-webhooks skill do?
Receive and verify ElevenLabs webhooks. Use when setting up ElevenLabs webhook handlers, debugging signature verification, or handling call transcription events.
How do I install elevenlabs-webhooks?
Run npx skills add https://github.com/hookdeck/webhook-skills --skill elevenlabs-webhooks in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/elevenlabs-webhooks/ (personal) or .claude/skills/elevenlabs-webhooks/ (project).
Which AI agents can use elevenlabs-webhooks?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is elevenlabs-webhooks safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains elevenlabs-webhooks?
It is published by hookdeck in hookdeck/webhook-skills. It has 236 recorded installs.
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