> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.paywithatoa.co.uk/llms.txt
> Use this file to discover all available pages before exploring further.

# API Reference | Introduction

> Atoa REST API reference: authenticate with a Bearer token and call JSON endpoints for payments, refunds, customers, bank feed and webhooks.

The Atoa API is a RESTful, JSON-based API for taking payments and accessing account data. All requests use standard HTTP verbs and status codes and are authenticated with a Bearer token from your Atoa Business app; the base URL is `https://api.atoa.me`. This reference documents every resource, Customers, Payment Methods, Payments, Refunds, Institutions, Bank Feed, Payouts, Card on File and Webhooks, with request and response schemas and copy-paste code samples in cURL, Python, JavaScript, PHP, Go and Java. New to Atoa? Start with Getting started, then test in the Sandbox before switching to production.

## Authentication

|                           |        |
| ------------------------- | ------ |
| Security Scheme Type      | HTTP   |
| HTTP Authorization Scheme | Bearer |
| Bearer format             | JWT    |

## Use our Postman Collection

We've created a comprehensive Postman collection containing all of our APIs for your convenience.

To authenticate your requests:

1. Navigate to the <b>Authorization</b> tab in the root folder
2. Replace <b>api-access-token</b> with your actual API token

[<img src="https://run.pstmn.io/button.svg" alt="Run in Postman" rel="noopener" width="128" height="32" />](https://www.postman.com/atoapayments-7757260/atoa-payments-s-workspace/collection/52893499-b8187798-8121-4e36-99ee-87e6d7c4ae86?action=share\&source=copy-link\&creator=52893499)

If the button above doesn't work, you can also [access our collection directly on Postman](https://www.postman.com/red-shuttle-882685/atoa-payments/overview).