Inbound API (to D1)

Use inbound APIs when your issuer backend calls the D1 backend.

Use the interactive reference pages below for day-to-day integration. Download the OpenAPI specs only if you want to import them into your tooling.

Interactive API reference

• OAuth 2.0 API
• Consumer API
• Card API
• 3DS API

Download OpenAPI specs

• D1-Public-IN-v1-Auth2 (OAuth 2.0)
• D1-Public-IN-v2-Consumer (End Users)
• D1-Public-IN-v2-Card (cards)
• D1-Public-IN-v1-3DSecure (3DS)