{"uid":"cap_e-s8Nzh1lwrRCwHz9Pxdd","slug":"grokzilla-gas-price-feed-b0b59b85","name":"Grokzilla Gas Price Feed","description":"EIP-1559 base fee and priority fee percentiles (p25/p50/p90) for Base and/or Ethereum via eth_feeHistory. Cached 10s. Optional eth-transfer USD estimate on Base.","url":"https://grokzilla.shop/api/skills/gas-price?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chains":{"type":"array","items":{"enum":["base","ethereum"],"type":"string"},"default":["base"],"maxItems":2,"minItems":1,"uniqueItems":true},"request_id":{"type":"string","pattern":"^[A-Za-z0-9._:-]+$","maxLength":64,"minLength":1,"description":"Optional idempotency key. Echoed back; a credit-pack redemption with the same request_id and body is charged once."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5F7D2IDJiAa7zZqoB_gZQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns EIP-1559 base fee and priority fee percentiles (p25/p50/p90) for Base and/or Ethereum via eth_feeHistory, with optional USD cost estimate for an ETH transfer on Base.","exampleAgentPrompt":"What are the current EIP-1559 base fee and priority fee percentiles (p25, p50, p90) on both Base and Ethereum right now, and what would an ETH transfer cost in USD on Base?","exampleUseCases":[{"title":"Pre-transaction gas budget check","prompt":"Before I send this transaction, what are the current p25, p50, and p90 priority fees on Base and roughly how much would a plain ETH transfer cost in USD right now?"},{"title":"Cheap gas timing for Ethereum","prompt":"Check the current EIP-1559 base fee and priority fee percentiles on Ethereum — I want to know if gas is cheap enough to submit my transaction at the p25 tip."},{"title":"Multi-chain fee comparison","prompt":"Pull the current gas fee percentiles for both Base and Ethereum so I can decide which chain to use for my next transaction."}],"resultDescription":"Returns EIP-1559 base fee and priority fee percentiles at p25, p50, and p90 for the requested chain(s) (Base and/or Ethereum), sourced from eth_feeHistory and cached for up to 10 seconds. For Base, optionally includes a USD cost estimate for a standard ETH transfer. Also echoes back the request_id if provided.","failureModes":["Invalid chain value (not 'base' or 'ethereum') returns a validation error","Empty or missing chains array returns an error","HTTP 402 returned if payment is not included","Stale data possible within the 10-second cache window","Upstream eth_feeHistory RPC failure may result in 503 or error response"],"whenToPreferThis":"Use this endpoint when an agent needs current EIP-1559 gas fee data (base fee + priority fee percentiles) for Base or Ethereum without setting up an RPC node or API key. Ideal for pre-transaction gas estimation, fee budgeting, or deciding between Base and Ethereum based on current gas costs. The 10-second cache makes it suitable for near-real-time decisions. Choose over raw RPC calls when you need a simple pay-per-call interface with no account setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:34:34.058Z","isFirstParty":false,"canonicalSlug":"grokzilla-gas-price-feed-b0b59b85"}