Getting Started

Base URL

All API requests should be made to the following base URL:

https://apiprod.fattlabs.com

When using a live or sandbox API key, you will use the same production URL. However, your sandbox will be linked to a test gateway and will not use real money.

Authentication

To access the API, you need an API key. All requests must include this key in the Authorization header as a Bearer Token.

Authorization: Bearer YOUR_SECRET_KEY

⚠️ Keep your API key secure and never expose it in client-side code or public repositories.

Example Request

curl -X GET "https://apiprod.fattlabs.com/"\
-H "Authorization: Bearer YOUR_SECRET_KEY"\
-H "Content-Type: application/json"

API Features

Content-Type Header

The Content-Type header must always be set to:

application/json

This ensures the API understands your requests and responds with JSON.

HTTP Methods

The Stax API supports standard HTTP methods:

GET: Retrieve a resource
POST: Create a new resource
PUT: Update an existing resource
DELETE: Delete a resource

Important Information

Rate Limits

The API enforces a rate limit of 100 requests per minute. If you exceed this limit, you'll receive a 429 Too Many Requests response.

The Retry-After header in the response indicates when you can retry your request.

Error Handling

The Stax API uses standard HTTP status codes to indicate the success or failure of requests:

Status Code	Meaning	Description
200 OK	✅ Success	The request was successful
400 Bad Request	❌ Client Error	Invalid request (missing parameters)
401 Unauthorized	🔒 Auth Error	Authentication failed (missing/incorrect API key)
404 Not Found	🔍 Not Found	The requested resource does not exist
429 Too Many Requests	⏰ Rate Limited	You've exceeded the rate limit
500 Internal Server Error	🔧 Server Error	Something went wrong on our end

Cross-Origin Resource Sharing (CORS)

The Stax API supports CORS, allowing secure interaction from client-side applications.

⚠️ Important: Never expose your secret API key in public client-side code.

Need Help?

Support & Documentation

If you have any questions or run into issues:

Check out our comprehensive API Documentation
Contact our support team for assistance
Review the examples and guides in this documentation