Convert between wallets
Executes a conversion from your from wallet to your to wallet at the current rate. Both wallets must exist.
Send an Idempotency-Key: retrying with the same key returns the original conversion (200) instead of converting twice.
API key scope: fx:write
Authorizations
Secret API key from Dashboard → Developers: kp_sandbox_… for Sandbox, kp_live_… for Production. Server-side only.
Headers
Unique key (a UUID is ideal) for this operation. Retrying with the same key returns the original result instead of creating a duplicate.
128Body
ISO currency code (fiat) or stablecoin ticker.
XOF, XAF, NGN, GHS, CDF, EUR, USD, USDC, USDT ISO currency code (fiat) or stablecoin ticker.
XOF, XAF, NGN, GHS, CDF, EUR, USD, USDC, USDT Decimal amount with up to 8 fractional digits, e.g. "1500" or "1500.75"
^\d+(\.\d{1,8})?$Your own reference for this conversion. Generated (tx_…) when omitted.
64