Use the API Key to obtain an access token using the client credentials grant type.
OAuth Authentication
3
Create a payment request
Use your access token to create a new payment request with the desired amount, currency, and redirect URL.
Create a payment request
4
Check payment status
Poll the API to retrieve the current status of the payment.
Retrieve a Payment Request
🧰 Environments & Base URLs
Environment
Base URL
Production (default)
https://public-api.alternativepayments.io
Demo
https://public-api.demo.alternativepayments.io
All examples in this guide use production URLs. Switch to the demo when you test. Tokens and requests are isolated per environment.
Caution
Tokens issued in one environment do NOT work in the other. Generate separate client credentials for demo and production.
API Versioning
The current stable version is v1. Backward‑compatible changes (new fields, new statuses) are rolled out without a version bump. Breaking changes, if ever needed, will ship under /v2.
