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Accounting API vs IIN API

If you need a Finance API that's easy to integrate, go with IIN API.

Accounting API

A flexible API for pulling accounting data, normalized and aggregated from 20 accounting integrations. Standardize how you connect to your customers’ accounting software. View, create, update, and...

IIN API

IIN API allows you to accurately identify the issuing bank, card type, country of origin, and other details from a credit or debit card number. This is essential for fraud prevention, payment processing, and customer verification.

Accounting API

  • Simple API key authentication
  • HTTPS supported

IIN API

  • Simple API key authentication
  • HTTPS supported
  • CORS enabled for frontend use
FeatureAccounting APIIIN API
AuthenticationapiKeyapiKey
HTTPSYesYes
CORSUnknownYes

When to use which?

IIN API works directly from the browser with CORS enabled, making it better for frontend-only apps.