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The path to your first NinePay API integration, from sandbox access to your first charge

These pages cover what you need before creating your first charge: how the API works, how to authenticate, where to test and how to import the API into your HTTP client.

Introduction

Guides and reference: what you will find in each.

API Introduction

Environments, headers, responses, errors, dates and card hashes.

Authentication

API keys, environment prefixes, rotation and lifecycle.

Test Environment

The sandbox API and dashboard.

Test Cards

Ending in 0 approves; ending in 1 to 9 declines.

Lists and Pagination

Pagination, sorting and filters for list endpoints.

To try the endpoints without writing code, download the API for Postman or Insomnia in Collections.