aster-api-spot-auth-v3
Aster Spot API Authentication (v3 — Testnet)
Base: https://sapi.asterdex-testnet.com. Path prefix: /api/v3/. Signed: send user, signer, nonce, signature in body.
| Param | Description |
|---|---|
| user | Main account wallet |
| signer | API wallet |
| nonce | Current time, microseconds |
| signature | EIP-712 (hex) |
Signing: Same as aster-api-auth-v3: param string (key=value, sort ASCII); EIP-712 domain (testnet may use chainId 714—check api-docs); sign with API wallet private key; add signature to body. POST/DELETE: application/x-www-form-urlencoded.
Noop: POST /api/v3/noop (TRADE): Cancel in-flight requests that have not completed on-chain; nonce can be reset. Weight: 1.
Payload shapes: reference.md.
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