- Choose direction:
order_type0=ONRAMP, 1=OFFRAMP. - Pick token address: see
/meta/tokensin the API Reference. - Provide fiat payload:
PHONEworks for both ON/OFF ramp.TILL/PAYBILLare off-ramp only.
- Submit
POST /orders/createand capturetx_hash. - Track via
/orders/tx/{tx_hash}and webhooks.
For OFFRAMP, the contract allowance must be sufficient. Otherwise you’ll get 400 insufficient_allowance with {required,current}.

