Developer API

Form backend API
for developers

Build custom form integrations with our REST API. Create forms, fetch submissions, set up webhooks, and integrate with your existing tools. Free API access included.

Simple, powerful API

Get started in minutes with our intuitive REST API

POSTSubmit a form

cURL
curl -X POST \
  https://fastsubmit.hostspica.com/api/v1/forms/FORM_ID/submit \
  -H "Content-Type: application/json" \
  -d '{
    "name": "John Doe",
    "email": "john@example.com",
    "message": "Hello!"
  }'

GETFetch submissions

cURL
curl -X GET \
  https://fastsubmit.hostspica.com/api/v1/forms/FORM_ID/submissions \
  -H "Authorization: Bearer YOUR_API_KEY"

POSTCreate a form

JavaScript
const response = await fetch(
  'https://fastsubmit.hostspica.com/api/v1/forms',
  {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer YOUR_API_KEY',
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      name: 'Contact Form',
      fields: ['name', 'email', 'message']
    })
  }
);

Webhook payload

JSON
{
  "event": "submission.created",
  "form_id": "abc123",
  "submission": {
    "id": "sub_xyz789",
    "data": {
      "name": "John Doe",
      "email": "john@example.com"
    },
    "created_at": "2024-12-08T10:30:00Z"
  }
}

Built for developers

Everything you need to integrate forms into your apps

REST API

Full CRUD operations for forms and submissions

Webhooks

Real-time notifications on form submissions

Data Export

Export submissions as JSON or CSV

API Keys

Secure authentication with API keys

Fast & Reliable

99.9% uptime, low latency responses

Secure

SSL encryption, rate limiting, CORS support

Integrate with anything

Connect FastSubmit to your favorite tools

Zapier
Connect to 5000+ apps
💬
Slack
Get notifications in Slack
📊
Google Sheets
Sync submissions to sheets
📝
Notion
Add submissions to databases
📋
Airtable
Sync with Airtable bases
🔗
Custom Webhooks
Send data anywhere

Ready to build?

Get your free API key and start integrating