Send funds
Signs and broadcasts a transfer from your platform’s own wallet — the twin of /send, with two differences: there is no userId, and there is no password — the platform wallet’s key is held and unlocked by the service, so the body is just assetId, recipient and amount.
Everything else is identical to /send and its description applies verbatim: native transfers deliver amount − fee while token transfers deliver the full amount, a txHash is not a confirmation, and X-Request-Id is required — it is the idempotency key, scoped to the platform wallet. Reuse the same id to retry a transfer safely; a duplicate never broadcasts twice.
Use this to pay out from the wallet you fund at /platform/addresses — for example to settle a completed trade with a user.
Do not send an X-USER-ID header here — a platform endpoint always acts as the platform wallet, and sending one is a 400.
Authentication
A 15-minute token from /auth. Required on every endpoint except /auth.
Headers
Required on /send, and client-supplied — it is the idempotency key for the transfer.
One id per logical transfer; the same id on every retry of it; a fresh id for a new transfer. 1–64 characters of A-Za-z0-9._-. Omitting it is a 400.
Request
Primary asset selector. An all-digit string ("21") is accepted and normalised to an integer.
1— BITCOIN BTC (native, 8 decimals)2— ETHEREUM ETH (native, 18 decimals)21— ETHEREUM USDT (ERC20, 6 decimals)22— ETHEREUM USDC (ERC20, 6 decimals)3— BSC BNB (native, 18 decimals)31— BSC USDT (BEP20, 18 decimals)32— BSC USDC (BEP20, 18 decimals)4— TRON TRX (native, 6 decimals)41— TRON USDT (TRC20, 6 decimals)42— TRON USDC (TRC20, 6 decimals) — not on every endpoint5— POLYGON POL (native, 18 decimals)51— POLYGON USDT (ERC20, 6 decimals) — not on every endpoint52— POLYGON USDC (ERC20, 6 decimals)6— SOLANA SOL (native, 9 decimals)61— SOLANA USDT (SPL, 6 decimals) — not on every endpoint62— SOLANA USDC (SPL, 6 decimals)
Human-decimal amount string. Same rules and minimums as /send.
Response
Echo of the inbound X-Request-Id, or a generated one.