Base gas fee plan for ONE transaction ($0.02): give gas_limit (+ urgency low/nor...

{ "method": "GET", "queryParams": { "calldata_bytes": 200, "gas_limit": 65000, "urgency": "normal" }, "type": "http" }

{ "example": { "also_try": [ { "free_sample": "https://agents.avasis.ai/v1/evm/gas-ops/sample", "price_usd": "0.05", "url": "https://agents.avasis.ai/v1/evm/gas-ops", "what": "EVM gas ops kit: Ethereum gas + Base gas fee tiers (slow/standard/fast/urgent), EIP-1559 next base fee, USD cost per tx and for your gas_limit, Base-vs-Ethereum pick, plus Solana slot / priority fees / SOL-USD; one shot, $0.05" }, { "free_sample": "https://agents.avasis.ai/v1/evm/tx-precheck/sample", "price_usd": "0.02", "url": "https://agents.avasis.ai/v1/base/tx-precheck", "what": "Base tx precheck: simulate YOUR unsigned transaction before you sign (would it revert + reason, gas in USD, every transfer, approval exposure, counterparty risk): SIGN / CAUTION / BLOCK" } ], "alternatives": [ { "blocks": [ 2, 10 ], "expected": { "eth": 1.69e-7, "usd": 0.000436104 }, "maxFeePerGas": { "gwei": 0.002863 }, "tier": "slow", "urgency": "low" }, { "blocks": [ 1, 1 ], "expected": { "eth": 2.34e-7, "usd": 0.000603837 }, "maxFeePerGas": { "gwei": 0.0057 }, "tier": "fast", "urgency": "high" }, { "blocks": [ 1, 1 ], "expected": { "eth": 2.665e-7, "usd": 0.000687703 }, "maxFeePerGas": { "gwei": 0.0083 }, "tier": "urgent", "urgency": "next_block" } ], "chain": "base", "chainId": 8453, "computedAt": "2026-10-29T12:00:00.500Z", "decision": { "action": "send_now", "reason": "standard tier for normal urgency: latest block 14.2% full vs 16.67% target, base fee falling (-0.0592% next block); expected $0.00052 for 65000 gas, typically 1-2 blocks (~2-4 s)", "requested_tier": "standard", "tier": "standard" }, "eth_usd": { "available": true, "price": 2580.5, "source": "chainlink ETH/USD aggregator on Base (latestRoundData)" }, "headline": "Base: standard tier (normal urgency) = maxFee 0.0052 gwei / tip 0.001 gwei, ~$0.00052 for 65000 gas, ~1-2 blocks · send now", "how_to_use": [ "Type-2 (EIP-1559) transaction: copy ready_to_sign.maxFeePerGas and maxPriorityFeePerGas (hex wei) into your transaction with your to / value / data / nonce; decision.action says send_now, downgrade (a cheaper tier fits max_usd) or wait (re-quote after recheck_in)." ], "inputs": { "calldata_bytes": 200, "gas_limit": 65000, "max_usd": null, "urgency": "normal" }, "kit": "evm-fee-plan-1", "l1_data_fee": { "applicable": true, "available": true, "bytes": 200, "eth": 8.04958e-10, "usd": 0.00000207719 }, "market": { "base_fee": { "gwei": 0.0021 }, "block": { "ageSeconds": 1, "gasUsedPct": 14.2, "number": 37400000, "timestamp": 1761739199 }, "next_block": { "base_fee_direction": "falling", "change_pct": -0.0592, "label": "balanced", "next_base_fee_estimate": { "gwei": 0.002099 } }, "observedAt": "2026-10-29T12:00:00.000Z", "priority": { "basis": "node eth_maxPriorityFeePerGas", "gwei": 0.001 } }, "plan": { "cost": { "expected": { "eth": 2.015e-7, "usd": 0.000519971 }, "gas": 65000, "max_authorized": { "eth": 3.38e-7, "usd": 0.000872209 }, "total_expected": { "eth": 2.02305e-7, "usd": 0.000522048 } }, "inclusion": { "blocks": [ 1, 2 ], "seconds": [ 2, 4 ] }, "maxFeePerGas": { "gwei": 0.0052 }, "maxPriorityFeePerGas": { "gwei": 0.001 }, "tier": "standard", "urgency": "normal" }, "ready_to_sign": { "chainId": "0x2105", "gas": "0xfde8", "maxFeePerGas": "0x4f5880", "maxPriorityFeePerGas": "0xf4240", "tier": "standard", "type": "0x2" }, "sources": [ "publicnode base rpc (via stream hub)", "chainlink ETH/USD (Base feed)", "Base GasPriceOracle (predeploy 0x42..0F)" ] }, "type": "json" }