latestOpenAPI 3.1.02026-08-108094177.6 KB
087dcf516ce2
Delegated Contract Mode
Create off-ramp request
Delegated Contract Mode will be deprecated soon; new partners should use Managed Custody Mode. Executes a crypto-to-fiat deposit. Always call /v1/deposit/quote first and pass the returned quoteId; UR validates urId, tokens, and amount against the original quote and rejects mismatches. requestId must be globally unique and reused on retries.
post/v1/deposit
Headers
X-Api-Signaturestring required
Partner's EIP-191 signature (0x-prefixed hex).
X-Api-Deadlinestring required
Unix seconds when the request signature expires (within 5 minutes).
X-Api-PublicKeystring
Partner's signer Ethereum address.
Request body
Response
Response envelope. For the user API, retCode 0 means success; for the partner API, code 0 means success. Business rejections return HTTP 200 with a non-zero code.