GET /api/v1/business/onramps/readiness before showing a live route. Create an on-ramp with POST /api/v1/business/onramps using the intended customer, wallet, amount, currency, and an idempotency key.
Sandbox on-ramps simulate payment and delivery. Live on-ramps validate immutable provider fields, reconcile provider status in the background, and emit transaction events and signed webhooks.