Affirm is a buy-now-pay-later platform offering installment loans at point-of-sale via merchant SDKs and direct APIs. Public Series A through F-funded company.
APIs.json: https://raw.githubusercontent.com/api-evangelist/affirm/refs/heads/main/apis.yml
- Fintech
- BNPL
- Lending
- Payments
- Consumer
- Created: 2026-05-08
- Modified: 2026-05-08
Initialize and authorize Affirm checkout flows for online merchants.
- Human URL: https://docs.affirm.com/developers
- Base URL:
https://api.affirm.com
- Checkout
- BNPL
- Documentation
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Capture, void, and refund Affirm charges; read transaction details.
- Human URL: https://docs.affirm.com/developers
- Base URL:
https://api.affirm.com
- Charges
- Payments
- Documentation
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Read transactions, settlements, and disputes.
- Human URL: https://docs.affirm.com/developers
- Base URL:
https://api.affirm.com
- Transactions
- Settlements
- Documentation
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
FN: Kin Lane Email: kin@apievangelist.com