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2026-8-26

2026-08-26

Futures V3 & Testnet — Sub-Account Transfer

  • user and signer are now both optional for POST /fapi/v3/subAccountTransfer. Pass either one to identify the signing account.
  • Added signer parameter: an approved agent wallet can now sign sub-account transfers on behalf of the user.
  • The Parameter Values table now includes a signer column to clarify which account signs in each transfer scenario.
  • Updated Signature Instructions and Important Notes to reflect agent-signing support.

Futures V3 & Testnet — Batch Modify Orders

  • Added PUT /fapi/v3/batchOrders — batch modify up to 5 open orders in a single request (up to 10 for MM-whitelisted accounts).
  • Each element requires symbol, quantity, and price; either orderId or origClientOrderId must be provided.
  • Batch processing is non-atomic: each order modification succeeds or fails independently.

Aster-Chain — Deposit Documentation

  • Added Aster-Chain Deposit section covering EVM, Solana, and SUI deposit methods.
  • EVM: depositFor contract method with mainnet contract addresses for ETH, BSC, and Arbitrum.
  • Solana: depositSol and depositToken program methods; mainnet program address documented.
  • SUI: spot-only deposit via dedicated deposit address (GET /aster-chain/v3/spot/user-deposit-address).

Aster-Chain — Perp & Spot Withdraw/Transfer Endpoints

  • Added Aster-Chain Perp Withdraw & Transfer Endpoints: POST /aster-chain/v3/perp/user-withdraw, POST /aster-chain/v3/perp/user-solana-withdraw, GET /aster-chain/v3/perp/user-withdraw-info, GET /aster-chain/v3/perp/deposit-withdraw-history, POST /aster-chain/v3/perp/wallet/transfer.
  • Added Aster-Chain Spot Withdraw & Transfer Endpoints: POST /aster-chain/v3/spot/user-withdraw (with signatureChainId parameter), POST /aster-chain/v3/spot/user-solana-withdraw, POST /aster-chain/v3/spot/wallet/transfer.
  • Added Aster-Chain Withdraw Endpoints: GET /aster-chain/v3/withdraw/estimateFee.