Increase is a banking and payments API providing direct ACH, wire, RTP, FedNow, check, and card programs. Bank-direct connectivity (no aggregator middle layer).
APIs.json: https://raw.githubusercontent.com/api-evangelist/increase/refs/heads/main/apis.yml
- Fintech
- Banking
- Payments
- ACH
- Wires
- Created: 2026-05-08
- Modified: 2026-05-08
Send and receive ACH transfers, debits, returns, and reversals via the Increase platform.
- Human URL: https://increase.com/documentation/api
- Base URL:
https://api.increase.com
- ACH
- Payments
- Banking
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Originate Fedwire transfers and process inbound wires and reversals.
- Human URL: https://increase.com/documentation/api
- Base URL:
https://api.increase.com
- Wires
- Payments
- Banking
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Send and receive RTP and FedNow instant payments with account validation.
- Human URL: https://increase.com/documentation/api
- Base URL:
https://api.increase.com
- RTP
- FedNow
- Instant Payments
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Issue Check 21 originations, deposit checks, and configure positive pay and lockboxes.
- Human URL: https://increase.com/documentation/api
- Base URL:
https://api.increase.com
- Check
- Payments
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Issue physical and digital cards, run real-time decisions, manage wallets and disputes.
- Human URL: https://increase.com/documentation/api
- Base URL:
https://api.increase.com
- Cards
- Issuing
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Open and manage standard and loan accounts with deposit insurance.
- Human URL: https://increase.com/documentation/api
- Base URL:
https://api.increase.com
- Accounts
- Banking
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
FN: Kin Lane Email: kin@apievangelist.com