Should I submit this Base transaction now, and at what fee? One call returns submit-or-wait, max fee per gas and priority fee in gwei (EIP-1559), and the estimated cost in USD for an ETH transfer, USDC ERC-20 transfer, or x402 settlement on Base mainnet. Live gas price and congestion from Base RPC blocks, no API key. For bots that queue transactions: call before every send.

Base gas price now, base fee and priority fee in gwei, block time, congestion and utilization trend, ETH price USD, and the USD cost to settle an ETH transfer, USDC ERC-20 transfer, or x402 payment on Base mainnet — one settle-now-or-wait verdict with rationale. Full market briefing; for the per-transaction submit/fee call see /base/tx-decision. GET, no inputs, no API key; computed live from Base RPC blocks.