{"uid":"cap_rr1t8ErnrytgPW0kT0haH","slug":"basebuilder-defi-gas-price-api-polygon-7cba59cc","name":"BaseBuilder DeFi Gas Price API – Polygon","description":"BaseBuilder Defi API hub - 22 paid endpoints","url":"https://bb-defi.vercel.app/api/gas/polygon","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.196001","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":"$0.196001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.196001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.196001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8JOVV7xdmumkwdcNPv8_E","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.196001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current gas price data for the Polygon network to help users estimate and optimize transaction costs.","exampleAgentPrompt":"What's the current gas price on Polygon right now — I want to know if it's a good time to send a transaction?","exampleUseCases":null,"resultDescription":"Returns current gas price information for the Polygon network, likely including standard, fast, and slow gas price tiers in Gwei, helping the caller estimate transaction costs before submitting on-chain.","failureModes":["Polygon RPC node unavailable — upstream data source error","Rate limit exceeded — too many requests in a short period","Payment validation failure — USDC payment not accepted or insufficient","Network congestion causing stale or delayed gas data","500 internal server error if the backend aggregator is down"],"whenToPreferThis":"Use this endpoint when you need real-time Polygon gas prices specifically and are operating in a Web3/DeFi agent context that supports x402 micropayment protocol. Prefer this over free public RPC calls when you need reliable, aggregated gas data without managing your own node infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:37:07.125Z","isFirstParty":false}