Rank #10 · x402 · onchain-data

Base gas price

What does a Base transaction cost right now? Base fee, priority-fee p25/p50/p90 over the last 20 blocks, suggested maxFeePerGas and maxPriorityFeePerGas for slow, normal and fast inclusion, an L1 data-fee upper bound, and estimated total cost in wei for an ETH transfer and an ERC-20 transfer, read live from Base RPC with the block number. $0.0015 USDC on Base. Failed read, no charge. No account, no API key. Estimates, not inclusion guarantees. By Ontario Protocol.

Agent decision Excellent

Payment test mode Unpaid challenge only

Evidence source fixture reports

91/100 benchmark score

excellent grade

1 report rows

0 paid settlements

Endpoint Surface

Request

GET https://ontarioprotocol.com/api/x402/base/gas

Price

0.0015 USDC

Rail

exact / base

x402 manifest OpenAPI Benchmark JSON

Score Breakdown

Uptime 20/20

Availability is estimated from benchmark fixture observations; no paid retry is made.

X402 Payment Correctness 25/25

Payment correctness checks the unpaid challenge shape and declared x402 requirements, not settlement.

Schema Quality 15/15

Schema quality rewards crawler-readable manifests, OpenAPI coverage, and catalog metadata.

Price Clarity 15/15

Price clarity rewards machine-parseable atomic pricing and a human-readable USDC display value.

Network Asset Clarity 10/10

Network and asset clarity checks whether agents can choose the correct chain and token before signing.

Report History 6/15

Report history rewards signed evidence, repeat observations, and fresh readiness reports.

Payment Safety

Payment header signed

False

Facilitator settle called

False

Spends money

False

Report History

Source: fixture_reports. Matching: target_url exact, then normalized origin.

Report	Source	Grade	Score	Verified	Integrity
`fixture_ontario-base-gas`	fixture report	pending	100/100	2026-10-25T07:44:56+00:00	False