{"uid":"cap_bM-m0sv_tQ1g37eNKxG2B","slug":"tarnak-x402-toolkit-base-gas-price-api-674d166d","name":"Tarnak x402 Toolkit — Base Gas Price API","description":"Keyless pay-per-call APIs for AI agents on Base: token risk verdict, rug/honeypot report, gas estimate, URL-to-markdown and more. x402 v2, USDC, no API key or signup. 10 free verdicts per IP per day.","url":"https://api.capousd-student-tools.me/v1/gas?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"ts":"2026-10-27T00:00:00Z","block":53184656,"chain":"base","network":"eip155:8453","base_fee_gwei":0.0012,"gas_price_gwei":0.002,"priority_fee_gwei":0.0008,"suggested_max_fee_gwei":0.002}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dZ8Z3Y20gGLJaKSQM9dje","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current Base network gas estimates including base fee, gas price, priority fee, and suggested max fee in Gwei","exampleAgentPrompt":"What are the current gas prices on Base — give me the base fee, priority fee, and suggested max fee in Gwei so I can set my transaction parameters correctly.","exampleUseCases":[{"title":"Pre-transaction gas check for DeFi swap","prompt":"Before I submit this swap on Base, what's the current gas price and suggested max fee so I don't overpay or get stuck?"},{"title":"Real-time gas monitoring for agent wallet","prompt":"Check the current base fee and priority fee on Base mainnet and let me know if it's cheap enough to send my transaction right now."},{"title":"Gas cost estimation for smart contract deployment","prompt":"I'm about to deploy a contract on Base — what are the current gas prices including the base fee and max fee in Gwei?"}],"resultDescription":"A JSON object containing the current block number, timestamp, chain identifier (base / eip155:8453), base fee in Gwei, gas price in Gwei, priority fee in Gwei, and suggested max fee in Gwei — all sourced from the latest Base block.","failureModes":["Network or RPC node unavailable — may return 5xx error","Rate limit exceeded beyond 10 free calls per IP per day without payment — returns 402 Payment Required","Payment failure via x402 protocol — call is not executed","Stale data if the underlying Base RPC node lags behind the chain tip"],"whenToPreferThis":"Use this endpoint when you need real-time Base network gas estimates without API key registration, especially for autonomous AI agents that need to pay per call via x402/USDC micropayments. Prefer this over manual RPC calls when you want a clean JSON gas summary without raw RPC boilerplate, and when operating on the Base (eip155:8453) chain specifically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:40:00.858Z","isFirstParty":false,"canonicalSlug":"tarnak-x402-toolkit-base-gas-price-api-674d166d"}