{"uid":"cap_ZrT6rRw5IH4XGgSWtCxHw","slug":"multichain-rpc-gas-price-0021337d","name":"Multichain RPC Gas Price","description":"Cheap, factual EVM chain lookups priced per call in USDC. Base, Polygon, Arbitrum, Optimism and Ethereum.","url":"https://multichain-rpc.clankerceo.workers.dev/gas-price","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"enum":["http"],"type":"string"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"enum":["json"],"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"chain":"base","base_fee_gwei":0.01,"gas_price_gwei":0.011,"simple_transfer_cost":{"gas":21000,"amount":"0.0000002","symbol":"ETH"}}},"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_PM-ER-DPmmWkOYnB-JWqE","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 live EIP-1559 gas prices (base fee, low/medium/high priority tiers in gwei) and estimated simple transfer cost for a specified EVM chain.","exampleAgentPrompt":"What are the current gas prices on Base right now — give me the EIP-1559 base fee and the low, medium, and high priority tiers in gwei, plus what a simple ETH transfer would cost?","exampleUseCases":[{"title":"Pre-transaction gas cost check","prompt":"Before I send this transaction on Polygon, what's the current base fee and how much would a simple transfer cost in MATIC right now?"},{"title":"Cross-chain gas comparison","prompt":"I'm deciding between sending on Arbitrum or Optimism — can you pull the current gas prices on both so I can see which is cheaper?"},{"title":"Gas spike monitoring alert","prompt":"Check the current gas price on Ethereum mainnet and tell me whether the base fee is above 20 gwei — I want to know if it's spiking."}],"resultDescription":"A JSON object containing the chain name, current EIP-1559 base fee in gwei, blended gas price in gwei, and a simple_transfer_cost object with the gas units (21000), the estimated cost as a decimal string, and the native token symbol (e.g. ETH).","failureModes":["Unsupported or misspelled chain name returns an error or empty response","Chain parameter omitted may default to a single chain or return an error","RPC backend congestion may cause stale or delayed gas data","Cloudflare Worker cold start may add latency on first call","Rapid gas market movements mean data may be slightly outdated by the time the agent acts on it"],"whenToPreferThis":"Use this endpoint when an agent needs real-time EVM gas prices across Base, Polygon, Arbitrum, Optimism, or Ethereum mainnet, especially when estimating transaction costs before submission or monitoring for gas spikes. Prefer this over on-chain RPC calls when you need a cheap, metered, per-call priced lookup without managing your own RPC node credentials.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:32:58.548Z","isFirstParty":false}