{"uid":"cap_3JoZRRArtlHD4CkrY2P1b","slug":"chainray-online-2f83f7d9","name":"ChainRay Gas Oracle","description":"The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.","url":"https://chainray.online/gas-oracle","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"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string","description":"Blockchain network (e.g., base, ethereum, polygon)"}}}},"additionalProperties":false}}},"responseSchema":null,"example":{"request":{"query":"{\\\"input\\\": {\\\"type\\\": \\\"http\\\", \\\"method\\\": \\\"GET\\\", \\\"queryParams\\\": {\\\"chain\\\": \\\"base\\\"}}}"},"response":{"_proof":{"chain":"base","dataHash":"d6e6432c127ded5dbb7a1a4c3a3f861c756cf535cb7215ad62cb219d854f0c24","blockHash":"0x2f9089f0abb66af4aecd592098e4095b8fd9df12c726c3a2e82e9f0422e89c89","chainName":"Base","blockNumber":47267366,"proofVersion":"3.0","blockTimestamp":1781324079,"proofTimestamp":1781324080379},"ranking":[{"chain":"scroll","speed":"~2s","gasGwei":0.0001,"transferCostUsd":0,"transferCostFormatted":"<$0.001"},{"chain":"gnosis","speed":"~2s","gasGwei":0.0009,"transferCostUsd":0,"transferCostFormatted":"<$0.001"},{"chain":"fantom","speed":"~2s","gasGwei":1,"transferCostUsd":0,"transferCostFormatted":"<$0.001"},{"chain":"avalanche","speed":"~2s","gasGwei":0.0685,"transferCostUsd":0.0001,"transferCostFormatted":"<$0.001"},{"chain":"base","speed":"~2s","gasGwei":0.005,"transferCostUsd":0.0002,"transferCostFormatted":"<$0.001"},{"chain":"arbitrum","speed":"~2s","gasGwei":0.02,"transferCostUsd":0.0007,"transferCostFormatted":"<$0.001"},{"chain":"bsc","speed":"~2s","gasGwei":0.1,"transferCostUsd":0.0013,"transferCostFormatted":"$0.0013"},{"chain":"zksync","speed":"~2s","gasGwei":0.0453,"transferCostUsd":0.0016,"transferCostFormatted":"$0.0016"},{"chain":"celo","speed":"~2s","gasGwei":200,"transferCostUsd":0.0021,"transferCostFormatted":"$0.0021"},{"chain":"polygon","speed":"~2s","gasGwei":250.0902,"transferCostUsd":0.0026,"transferCostFormatted":"$0.0026"},{"chain":"ethereum","speed":"~12s","gasGwei":0.1276,"transferCostUsd":0.0045,"transferCostFormatted":"$0.0045"},{"chain":"mantle","speed":"~2s","gasGwei":50,"transferCostUsd":1.7464,"transferCostFormatted":"$1.7464"}],"sources":["on-chain RPC (16 chains)","on-chain DEX (ETH price)"],"timestamp":1781324080249,"ethPriceUsed":1663.27,"chainsScanned":12,"recommendation":{"advice":"Execute on scroll to save up to 100.0% vs mantle","cheapestChain":"scroll","savingsPercent":"100.0%","transferCostUsd":"<$0.001","mostExpensiveChain":"mantle","mostExpensiveCostUsd":"$1.7464"}}},"exampleRequest":{"query":"{\\\"input\\\": {\\\"type\\\": \\\"http\\\", \\\"method\\\": \\\"GET\\\", \\\"queryParams\\\": {\\\"chain\\\": \\\"base\\\"}}}"},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_J7VcJKD-YgkXFcgNYl3wX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time gas price and fee estimates for EVM-compatible blockchain networks, defaulting to Base chain.","exampleAgentPrompt":"What are the current gas prices on Base right now — I need the latest fee estimates before I send a transaction?","exampleUseCases":null,"resultDescription":"Returns current gas price metrics for the specified EVM chain, including base fee, priority fee (tip), and overall gas estimates needed to submit and confirm transactions.","failureModes":["Unsupported or unrecognized chain name returns an error or empty response","Network unavailability causes timeout or 503 error","Payment failure (insufficient USDC balance) results in 402 response","Invalid query parameter format returns 400 bad request"],"whenToPreferThis":"Use this endpoint when you need real-time gas price data for EVM-compatible chains (especially Base) to inform transaction cost estimation, fee setting, or timing decisions. Prefer this over historical gas endpoints when you need the current moment's gas metrics rather than trends.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:58:53.033Z","isFirstParty":false}