{"uid":"cap_pY4Rhl3ZW4021AYr0QWL9","slug":"synapse-api-citrea-gas-estimator-9f40666f","name":"Synapse API — Citrea Gas Estimator","description":"High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.","url":"https://synapse-api-brown.vercel.app/api/citrea/gas/estimate?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"to":{"type":"string"},"data":{"type":"string"},"from":{"type":"string"},"value":{"type":"string"}}},"responseSchema":null,"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__ynTruieYFKffuo6aT2kN","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 the gas cost for a transaction on the Citrea blockchain network before submission","exampleAgentPrompt":"Before I send this Citrea transaction from 0xAbc...123 to 0xDef...456 with calldata 0x1234abcd and 0 value, can you estimate how much gas it will use?","exampleUseCases":[{"title":"Pre-flight smart contract call check","prompt":"I want to call a smart contract on Citrea — the contract is at 0xDef...456, my wallet is 0xAbc...123, and the encoded calldata is 0xa9059cbb0000...0001. Can you estimate the gas before I actually submit the transaction?"},{"title":"ETH transfer gas estimation on Citrea","prompt":"How much gas would it cost to send 0.05 ETH from 0xSender...111 to 0xReceiver...222 on the Citrea network? I want to know before committing."},{"title":"DApp transaction cost budgeting","prompt":"My app is about to batch transactions on Citrea — can you estimate the gas for a transaction from 0xMyWallet...333 to 0xContract...444 with data 0xabcdef00 and value 0 so I can budget the fees?"}],"resultDescription":"Returns an estimated gas units figure for the described Citrea transaction, allowing callers to predict fees before broadcasting to the network. Typically includes a numeric gas estimate (e.g. in units of gas) that can be combined with current gas price to derive total cost.","failureModes":["Invalid or malformed address in 'to' or 'from' fields returns a 400 error","Malformed hex data in the 'data' field causes parsing failure","Network unavailability of Citrea RPC node results in a 503 or timeout","Invalid value format (non-hex or non-numeric string) causes validation error","Transactions that would revert on-chain may return an error or revert reason rather than a gas estimate"],"whenToPreferThis":"Use this endpoint when you need a gas estimate specifically on the Citrea network (a Bitcoin-rollup EVM chain) before submitting a transaction. Prefer this over generic Ethereum gas estimators when your transaction targets Citrea's specific chain environment. Ideal for pre-flight cost checks in dApps, wallets, or automated agents managing Citrea transactions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:49:10.483Z","isFirstParty":false,"canonicalSlug":"synapse-api-citrea-gas-estimator-9f40666f"}