API Documentation

Integrate Fillflow with your existing tools using webhooks and our embed API. Send lead data to your CRM, email platform, or custom backend.

Webhooks

Fillflow sends a POST request to your endpoint whenever a lead is captured. Configure webhooks per quiz from the builder's Integrations tab.

POST your-endpoint.com/webhook
Content-Type: application/json

{
  "lead": { "name": "...", "email": "...", "phone": "..." },
  "result": { "score": 8, "label": "High Match" },
  "quiz": { "title": "...", "slug": "..." },
  "submittedAt": "2025-01-01T12:00:00Z"
}

Available on the Business plan. See the builder Integrations tab for full setup instructions.