2026-3-17

Futures V3 API Updates

  • Added V3 Nonce Mechanism explanation to General Info
  • Added Noop endpoint (POST /fapi/v3/noop) to Market Data, including Python async demo
  • Added HIDDEN order type to timeInForce enum
  • Added Event: TradePro WebSocket stream to User Data Streams
  • Updated MARKET_DATA security type: no longer requires authentication
  • Removed recvWindow and timestamp parameters from all signed endpoints
  • Removed Timing Security section (recvWindow / timestamp logic)
  • Updated Python example code in General Info: new host fapi3.asterdex.com, refactored signing functions using urllib.parse.urlencode
  • Removed -1021 INVALID_TIMESTAMP error code

Futures API Updates

  • Added Event: TradePro WebSocket stream to User Data Streams

Futures V3 Deposit & Withdrawal Updates

  • Added Get Server Time endpoint (GET /fapi/v3/time)
  • Added Signature section with two subsections:
  • API-KEY Signature (V1): HMAC SHA256 signing instructions
  • Pro API-KEY Signature (V3): EIP712 typed data signing instructions with ethers.js example
  • Split Withdraw Signature into EVM Withdraw Signature and Solana Withdraw Signature (optional)
  • Added Ed25519 signing instructions and Node.js example for Solana withdrawals
  • Refactored withdrawal endpoints: removed timestamp, recvWindow, HMAC signature params; added userNonce and userSignature to Solana endpoints
  • Added 4 new V3 withdrawal endpoints (fapi[v3]): EVM and Solana variants for both futures and spot