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latestOpenAPI 3.1.02026-08-108094177.6 KB

087dcf516ce2

External Wallet Access Mode

Get supported chain config

Returns supported chains, token lists, contract addresses, and per-token Off-ramp and FX amount limits (minTopUpAmount, maxTopUpAmount, minFxAmount, maxFxAmount). Works logged in (adds balances and card eligibility) and logged out (config only). Read limits at request time; do not hardcode them.

get/api/v3/config/chain-configs

Headers

tokenIdstring

The user's URID. Omit for a non-logged-in query (config only, no balances).

networkstring

Network identifier: 5000 for mainnet, 5003 for testnet.

signstring

Signature generated by the user's wallet key (EIP-191).

hashstring

SHA3/Keccak256 hash of the original request payload.

deadlinestring

Signature expiry: server timestamp plus a validity window (max 20 minutes).

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.

retCodeinteger required

0 on success; non-zero indicates failure.

retMsgstring required

Human-readable message; error details when retCode is non-zero.

{"stackTrail":"components:schemas:EwaEnvelope:properties:result","oasType":"schema","type":"unknown","description":"Business payload. Shape depends on the endpoint; some endpoints return it as a JSON-encoded string."}
timeNowinteger

Server timestamp in milliseconds.