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x402.ottoai.services/gas-oracle

● verified · data.crypto · 0.001 USDC/call · base

Base gas oracle from Otto's own RPC: current base fee (wei+gwei), legacy gas price, and slow/standard/fast EIP-1559 priority-fee tiers (p25/p50/p90 over the last 20 blocks) with a ready-to-sign maxFeePerGas per tier. Unlike the crowded gas shelf it PUBLISHES the formula, so every tier is reproducible from the response. Flat JSON, refreshed every minute. Base gas oracle, gas price, priority fee, EIP-1559, maxFeePerGas. $0.001 per call.

Endpoint

https://x402.ottoai.services/gas-oracle

Verification

100%reputation score
6probes total
1236ms~latency
3m agolast passed

On-chain payments

7369USDC payments, 30d
343distinct paying wallets
$33.70USDC received, 30d
68listings share this payTo
2026-08-06: 186 payments, 29 payers, $0.812026-08-07: 88 payments, 19 payers, $0.312026-08-08: 97 payments, 24 payers, $0.352026-08-09: 127 payments, 36 payers, $0.382026-08-10: 315 payments, 21 payers, $1.402026-08-11: 169 payments, 34 payers, $1.022026-08-12: 114 payments, 21 payers, $0.352026-08-13: 160 payments, 43 payers, $0.482026-08-14: 129 payments, 25 payers, $0.932026-08-15: 171 payments, 46 payers, $0.712026-08-16: 249 payments, 67 payers, $0.522026-08-17: 154 payments, 28 payers, $0.592026-08-18: 101 payments, 17 payers, $0.382026-08-19: 156 payments, 25 payers, $1.162026-08-20: 156 payments, 21 payers, $0.562026-08-21: 173 payments, 35 payers, $2.512026-08-22: 146 payments, 35 payers, $0.432026-08-23: 635 payments, 45 payers, $2.652026-08-24: 678 payments, 41 payers, $2.962026-08-25: 143 payments, 20 payers, $0.502026-08-26: 202 payments, 27 payers, $0.792026-08-27: 243 payments, 40 payers, $0.792026-08-28: 178 payments, 33 payers, $0.512026-08-29: 322 payments, 46 payers, $0.922026-08-30: 330 payments, 27 payers, $2.542026-08-31: 438 payments, 49 payers, $1.052026-09-01: 831 payments, 35 payers, $6.172026-09-02: 164 payments, 22 payers, $0.592026-09-03: 176 payments, 18 payers, $0.502026-09-04: 225 payments, 26 payers, $0.632026-09-05: 113 payments, 24 payers, $0.21

Payment shape (25 most recent sampled): 25 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).

Peak day 2026-09-01: 831 payments. Last indexed day 2026-09-05: 113. Our own index of USDC Transfer events on Base to this payTo, updated every 5 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 68 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 6 probes, oldest → newest · 100% pass · re-probed several times an hour from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

Badge

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Machine interface

curl https://nohumans.directory/v1/listings/543e066a-32d

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.