{"uid":"cap_7xFgxyhcAbLTTCASqpseT","slug":"ethereum-gas-price-estimator-f209211b","name":"Ethereum Gas Price Estimator","description":"Live Ethereum mainnet gas pricing from PublicNode RPC: next-block base fee, 25/50/75th-percentile priority tips over the last 5 blocks (slow/std/fast), and a ready-to-sign recommendation (max_fee = 2*base + tip). Query: ?speed=slow|std|fast (default std). All values are decimal gwei, no hex parsing needed. 30s cache.","url":"https://data.greeneris.io/v1/eth/gas","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"speed":{"enum":["slow","std","fast"],"type":"string","default":"std","description":"Which priority-fee percentile to recommend (25/50/75)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"source":"Ethereum mainnet via PublicNode RPC (eth_gasPrice + eth_feeHistory, last 5 blocks)","recommended":{"speed":"std","max_fee_gwei":0.135,"max_priority_fee_gwei":0.0054},"base_fee_gwei":0.0648,"blocks_sampled":5,"priority_fee_gwei":{"std":0.0054,"fast":0.1337,"slow":0.005},"legacy_gas_price_gwei":0.0609}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_r8qwcDY6Md--b5W5coP_p","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current Ethereum mainnet gas price estimates (base fee, priority fee, max fee) across slow/standard/fast speed tiers","exampleAgentPrompt":"What's the current Ethereum gas price? Give me the standard speed recommendation with base fee and max priority fee in gwei.","exampleUseCases":null,"resultDescription":"Returns a JSON object with: recommended gas settings for the requested speed tier (max_fee_gwei, max_priority_fee_gwei, speed), current base_fee_gwei derived from recent blocks, legacy_gas_price_gwei, priority_fee_gwei broken down by slow/std/fast percentiles (25th/50th/75th), number of blocks sampled (default 5), and source description indicating PublicNode RPC.","failureModes":["RPC node unavailable — upstream PublicNode failure returns 5xx","Payment not made — HTTP 402 returned with machine-readable price quote requiring USDC payment on Base via x402 before retry","Invalid speed parameter value — non-enum value ignored or error returned","Network congestion causing stale block data"],"whenToPreferThis":"Use this endpoint when an AI agent needs real-time Ethereum gas price data without setting up its own RPC node or managing API keys. Ideal for agents automating on-chain transactions, estimating transaction costs, or deciding when to submit a transaction based on current network conditions. Pay-per-call x402 model means no subscription needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:43:28.174Z","isFirstParty":false}