API REFERENCE · V4
A predictable, resource-oriented API.
JSON over HTTPS, standard verbs and status codes, idempotent writes and cursor-based pagination on every list.
ENDPOINTS
Core resources.
Base URL: https://api.fluxo.com/v4
PAYMENTS
POST
/payments
GET
/payments/:id
POST
/payments/:id/refund
PAYOUTS
POST
/payouts
GET
/payouts
POST
/recipients
CARDS
POST
/cards
PATCH
/cards/:id
GET
/authorizations
TREASURY
GET
/balances
POST
/transfers
CONVENTIONS
Built to be boring, in the best way.
Authentication
Bearer tokens with restricted keys and per-key permissions.
Idempotency
Send an Idempotency-Key header and retry safely on any network error.
Versioning
Pin a version per key. Upgrades are opt-in and fully documented.
Start making requests.
Every account comes with sandbox keys and test data.