{"uid":"cap_J5W85p3BfauxhQv8tFS_z","slug":"northline-crypto-gas-price-api-ef60e0b7","name":"Northline Crypto Gas Price API","description":"Pay-per-call APIs, paid downloads and work-on-request for agents. Payment: x402 (USDC on Base, eip155:8453), no accounts or API keys. Catalog: https://206-81-14-131.sslip.io/?format=json. Agent guide: https://206-81-14-131.sslip.io/llms.txt","url":"https://206-81-14-131.sslip.io/svc/crypto-prices/gas?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FNMByoFuqUF9cxaTHT0uG","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current Ethereum and EVM-compatible blockchain gas prices, paid per-call via x402 USDC micropayment on Base","exampleAgentPrompt":"What are the current Ethereum gas prices right now — base fee, priority fee, and estimated cost for a standard transaction?","exampleUseCases":[{"title":"Pre-transaction gas check for DeFi","prompt":"Before I submit this swap on Ethereum mainnet, can you check the current gas prices and tell me if they're in a reasonable range to proceed?"},{"title":"Gas price monitoring for scheduling","prompt":"Check the current gas prices on Ethereum and let me know if the base fee is under 20 gwei — I want to time my NFT mint when it's cheap."},{"title":"Cost estimation for agent operations","prompt":"I'm about to have my agent execute a batch of on-chain transactions — what are the current gas prices so I can estimate the total ETH cost?"}],"resultDescription":"Returns current gas price data for EVM-compatible blockchains, including base fee, priority fee (tip), and fast/standard/slow gas price tiers in gwei, enabling agents to estimate transaction costs before submission.","failureModes":["Payment not included or insufficient USDC — returns HTTP 402 requiring x402 payment","Upstream gas oracle unavailable — may return 503 or stale data","Invalid network/chain parameter — returns 400 with error message","Rate limiting or temporary node unavailability"],"whenToPreferThis":"Choose this endpoint when you need real-time gas price data for Ethereum or EVM-compatible chains without API key setup, paying only $0.003 USDC per call via x402 micropayment. Prefer this over free public gas oracles when operating in an agent context that already supports x402 payments and needs reliable, on-demand gas data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T12:46:10.932Z","isFirstParty":false,"canonicalSlug":"northline-crypto-gas-price-api-ef60e0b7"}