1. Convert
BPN OpenAPI
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      POST
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  1. Convert

Convert · Quote & submit

Parent: Overview · Updated: 2026-07-30

Main flow (all four businessTypes)#

Steps#

1.
POST /v1/stable/order/get-quote
businessType ∈ STABLE_BUY | STABLE_SELL | STABLE_TRANSFER | STABLE_SWAP
paymentMethod, sourceCurrency, targetCurrency
Amount: usually sourceAmount or targetAmount; SWAP requires sourceAmount
2.
Inspect quoteId, price, fees, expireTime
3.
POST /v1/stable/order/submit-order with quoteId + merchantOrderId (+ optional remarks)
4.
Terminal state via webhook STABLE_ORDER_UPDATED or query-detail
5.
On success, reconcile VA and/or Wallet balances

Reconciliation keys#

KeyUse
merchantOrderIdMerchant idempotency / recon
orderIdBPN order id
quoteIdQuote stage only
Webhook eventIdCallback idempotency

Idempotency (hard)#

CaseAction
Timeout without clear failurePrefer same merchantOrderId (with a still-valid quote strategy; expired quotes need a new quote — new orders usually need a new key per CS agreement)
processingDo not change key; wait webhook / query
Clear fail / validation errorNew merchantOrderId + new quote
See Idempotency.

Fees & settlement#

get-quote / detail include ourFee, payInFee, payOutFee (+ currencies). After success, reconcile VA / Wallet; bank payouts may need bank confirmation.

Pay Session#

POST /v1/stable/order/pay-session is a session helper with its own expireTime, parallel to the plain quote flow.
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