{"uid":"cap_B0rhFi3OpgULzCDg0xBkU","slug":"chainscope-fee-estimator-45dcb637","name":"ChainScope Fee Estimator","description":"Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transaction itself.","url":"https://chainsscope.duckdns.org/tools/fee-estimate","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"enum":["ethereum","base","bitcoin","solana","arbitrum","optimism","polygon"],"type":"string"}}},"responseSchema":{"type":"json","example":{"fast":null,"slow":null,"unit":"gwei","chain":"ethereum","standard":"5"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_7UCE7n-nZ9EoPGVpNl_uS","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":"Estimates current transaction fees (gas prices) for a specified blockchain network, returning fast, standard, and slow fee tiers in the appropriate unit.","exampleAgentPrompt":"What are the current gas fees on Ethereum right now — give me the fast, standard, and slow tiers so I can decide how to price my transaction?","exampleUseCases":[{"title":"Pre-transaction fee check for DeFi","prompt":"Before I submit this Ethereum swap, what are the current gas fee tiers — fast, standard, and slow — so I can pick the right one without overpaying?"},{"title":"Multi-chain fee comparison for routing","prompt":"I need to send a transaction and I'm deciding between Ethereum and Base — can you pull the current fee estimates for both chains so I know which is cheaper right now?"},{"title":"Automated fee monitoring for a payment bot","prompt":"My bot is about to batch-submit transactions on Ethereum — can you check the current gas price tiers and tell me if the standard fee is below 10 gwei before we proceed?"}],"resultDescription":"A JSON object containing fee estimates broken down into fast, standard, and slow tiers (some may be null if unavailable), the unit the fees are expressed in (e.g. 'gwei' for Ethereum), and the chain identifier confirming which network was queried.","failureModes":["Unsupported chain identifier returns an error or null fee fields","Network congestion or RPC downtime may return null for one or more fee tiers","Missing or malformed chain parameter causes a 400-level error","Fees may be stale if the underlying node data is delayed"],"whenToPreferThis":"Use this endpoint when you need a consistent, multi-chain fee estimation interface across Ethereum, Base, Bitcoin, and Solana without building separate integrations for each network. Prefer it when your agent needs to make fee-aware decisions (e.g. choosing fast vs. slow tier) before submitting a transaction, or when routing transactions across chains based on current fee levels.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:43:33.290Z","isFirstParty":false}