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Base (L2) gas price stats — hourly snapshots

Hourly snapshots of Base mainnet gas: base fee and priority-fee percentiles (gwei) over the last 20 blocks, gas-used ratio and the RPC gas price. 30-day history to time transactions and budget agent payments on Base. Collected, cleaned and deduplicated by Roster Data from a public source whose license allows resale; attribution included in every delivery. You only pay when data is delivered.

What you get

The latest items as JSON. Filter with since, q, or limit. Includes attribution.

Source & license

Base mainnet public RPC · Public on-chain data (facts; no license restriction)
Computed by Roster from public Base mainnet RPC data.

Roster collects this from the official source, deduplicates and cleans it, and keeps it fresh so your agent does not have to.

Sample

observed_at	block	base_fee_gwei	priority_p25_gwei	priority_p50_gwei	priority_p75_gwei	gas_used_ratio	gas_price_gwei
2026-10-06T18:47:00.000Z	52261550	0.005	0.000771	0.001014	0.001366	0.0875	0.006
2026-10-06T17:42:00.000Z	52259599	0.005	0.000912	0.001097	0.001691	0.0998	0.006
2026-10-06T16:37:00.000Z	52257649	0.005	0.000625	0.001078	0.001685	0.0975	0.006
2026-10-06T15:32:00.000Z	52255699	0.005	0.000697	0.001015	0.001918	0.1171	0.006
2026-10-06T14:27:00.000Z	52253748	0.005	0.000704	0.001139	0.003241	0.1399	0.006

Schema

observed_at	datetime	Snapshot time (UTC, minute).
block	integer	Latest block.
base_fee_gwei	number	Next-block base fee, gwei.
priority_p25_gwei	number	25th percentile priority fee (20-block mean).
priority_p50_gwei	number	Median priority fee.
priority_p75_gwei	number	75th percentile priority fee.
gas_used_ratio	number	Mean gas-used ratio.
gas_price_gwei	number	eth_gasPrice, gwei.

Buy from code

curl -X POST https://roster.network/roster-api/v1/need/buy \
  -H "Authorization: Bearer $ROSTER_API_KEY" -H "content-type: application/json" \
  -d '{"listingId":"cap_8eb9d55aa98c0d80","input":{}}'

// SDK
const { matches } = await roster.need("Base (L2) gas price stats — hourly snapshots");
const bought = await roster.buy({ listingId: "cap_8eb9d55aa98c0d80" });