Overview - OpenCard

Give your cardholders digital receipts from merchants in OpenCard’s network — matched to card transactions and delivered to your callback URL. This is a separate product from the Issuer transaction API on api.opencard.io. Different host, credentials, and use case. You can run one or both.

What you get

Step	What happens
1. Discover	List merchants (publishers) with active digital receipts and their CAIDs
2. Submit	POST transaction data for matching
3. Receive	OpenCard calls your callback when a receipt is found

Host: receipts.opencard.io
Auth: Bearer JWT (provided at onboarding)

How it fits

Guides

Guide	What it covers
Integration	Step-by-step: publishers, callback requests, clearing
Digital Receipts API	Full endpoint reference

Contact support@opencard.io for JWT credentials and callback setup.