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Base gas now & best time to swap

Gas is in the cheapest quarter of the last ~1024 blocks. Swap now.

EthereumBaseArbitrumOptimismPolygonBNB Chain
Gas is cheap on Ethereum: swap now on SwapChan →
Base fee, last ~1024 blocks (gwei, green = cheapest)
Average base fee by hour of day (UTC): still collecting, chart fills in over the next days

0:00 UTC23:00 UTC

Chain Id
1
Chain
Ethereum
Now Base Fee Gwei
0.04151
Median Tip Gwei
0.0106
Signal
cheap
Swap Cost Usd Now
$0.0179
Best Hour Utc
–
History Days
0.13
Recommendation
Gas is in the cheapest quarter of the last ~1024 blocks. Swap now.

Window

Blocks
1,025
P10
0.04006
Median
0.04749
P90
0.12

By Hour Utc (4)

Hour UtcAvg GweiSamples
00.045983
210.043215
220.078439
230.078916

Sources: eth_feeHistory (1024 blocks, public RPC) · SwapChan gas sampler (every 10 min since deploy)

From chain
You pay
To chain
You receive
0.0
Slippage
Approval

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This page is the best_time_to_swap tool in the free SwapChan MCP server. Every answer ends with a ready-to-sign swap link.

You say

“When is the cheapest time to swap on Ethereum?”

Your agent gets (best_time_to_swap)

{
  "chainId": 1,
  "chain": "Ethereum",
  "nowBaseFeeGwei": 0.04151,
  "medianTipGwei": 0.0106,
  "window": {
    "blocks": 1025,
    "p10": 0.04006,
    "median": 0.04749,
    "p90": 0.12
  },
  "signal": "cheap",
  "swapCostUsdNow": 0.017872431885101684,
  "bestHourUtc": null,
  "byHourUtc": [
    {
      "hourUtc": 0,
      "avgGwei": 0.04598,
      "samples": 3
    },
    {
      "hourUtc": 21,
      "avgGwei": 0.04321,
      "samples": 5
    },
    {
      "hourUtc": 22,
      "avgGwei": 0.07843,
      "samples": 9
    },
    {
      "hourUtc": 23,
      "avgGwei": 0.07891,
      "samples": 6
    }
  ],
  "historyDays": 0.13,
  "recommendation": "Gas is in the cheapest quarter of the l
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