API

Integrating Cryptanio through the public API: invoices, payment checks and request handling.

How to check payment through the API without a webhook

Server-side invoice checks through the API: payment statuses, bounded polling, errors, one-time order fulfilment and recovery after a restart.

How to accept USDC payments on your website

Set up payment for a single order in USDC on a network chosen in advance: verify the exact token, connect an address to the project, create an invoice and confirm the result on your server.

How to restrict an API key to one project

Create a separate key for server-side invoice reconciliation in one project: select the project, read access and the required API section, configure IP rules and expiry, then test the access boundary.