{"uid":"cap_YD_fB6BdDfiH0Q6_mkM21","slug":"unlockbot-gas-fee-oracle-0b5f3dc6","name":"UnlockBot Gas Fee Oracle","description":"Pay-per-call crypto risk data for AI agents over x402: pre-trade checks, token safety / honeypot screening, whale exchange flows, token unlock risk, wallet profiles. No API key, no signup: pay a few cents of USDC per call. Payment: x402 v2 exact scheme, USDC on Base mainnet (eip155:8453) to 0x21e4F3c6EcDb0F0CADC59511BF675B9BcBbeD304. Charged only on HTTP 200.","url":"https://8prtkj444ihx.hostc.app/gas?utm_source=zero.xyz","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","required":[],"properties":{"chain":{"enum":["ethereum","base","arbitrum"],"type":"string","default":"ethereum","description":"Chain"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"data":{"note":null,"unit":"gwei","chain":"ethereum","trend":"stable","partial":false,"suggested":{},"next_base_fee":0.0661,"transfer_cost_eth":{"swap_180k":0.0000121,"eth_transfer_21k":0.00000141,"erc20_transfer_65k":0.00000436},"forecast_next_blocks":"base fee likely to increase (blocks >50% full)","block_utilization_pct":50.3,"base_fee_avg_20_blocks":0.0668},"endpoint":"/gas"}},"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_KVa1aGlRJPyYoPaRFUPnZ","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 current and forecasted gas prices (base fee, transfer costs, block utilization) for Ethereum, Base, or Arbitrum chains","exampleAgentPrompt":"What's the current gas situation on Ethereum — is the base fee trending up or down, and how much would a typical ERC20 transfer cost right now?","exampleUseCases":[{"title":"Pre-trade gas cost check","prompt":"Before I submit this token swap on Ethereum, what's the current base fee and how much should I expect to pay in gas for a swap transaction?"},{"title":"Monitor Base network congestion","prompt":"Check the current block utilization and gas fees on Base — is the network congested or is it a good time to send a transaction cheaply?"},{"title":"Arbitrum gas forecast for automation","prompt":"I'm about to run a batch of on-chain actions on Arbitrum — what's the current base fee and is gas expected to rise or stay stable over the next few blocks?"}],"resultDescription":"Returns a JSON object with the current base fee average (gwei), forecasted next base fee, gas trend (stable/rising/falling), block utilization percentage, estimated ETH costs for common operation types (21k ETH transfer, 65k ERC20 transfer, 180k swap), a human-readable forecast for upcoming blocks, and the chain queried.","failureModes":["Invalid chain parameter returns an error — only 'ethereum', 'base', or 'arbitrum' are supported","Payment failure (non-200 response) means no charge is incurred but no data is returned","Network-level data may be slightly delayed if the underlying RPC node is lagging","Partial data flag ('partial: true') may appear if some block data was unavailable"],"whenToPreferThis":"Choose this endpoint when you need real-time gas fee data for EVM chains (Ethereum, Base, Arbitrum) without signing up for an API key — ideal for AI agents doing pre-trade checks, cost estimation, or gas monitoring in a pay-per-call model. Prefer this over free public RPC calls when you need structured, pre-computed cost estimates (swap, ERC20 transfer, ETH transfer) and a trend/forecast rather than raw gas values.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:42:06.029Z","isFirstParty":false,"canonicalSlug":"unlockbot-gas-fee-oracle-0b5f3dc6"}