{"uid":"cap_aZ-hG7GUk9fbKVCB_NV9y","slug":"synapse-api-celo-gas-estimator-4bad82a0","name":"Synapse API — Celo 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/celo/gas/estimate","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_Ybnjsss00M00wt5Tvvhj_","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 gas costs for a transaction on the Celo blockchain given sender, recipient, data payload, and value","exampleAgentPrompt":"Estimate the gas needed for a Celo transaction from 0xSenderAddress to 0xRecipientAddress with a value of 1 CELO and no calldata, so I know the fee before I send it.","exampleUseCases":[{"title":"Pre-flight check before token transfer","prompt":"Before I send 50 CELO from 0xMyWallet to 0xFriendWallet, can you estimate how much gas that transaction will use on the Celo network?"},{"title":"Smart contract call cost estimation","prompt":"I'm about to call a smart contract on Celo — the contract is at 0xContractAddress, my wallet is 0xMyAddress, and the encoded calldata is 0xa9059cbb000... Can you estimate the gas cost before I submit it?"},{"title":"DeFi transaction fee budgeting","prompt":"I want to know the gas fee for a Celo DeFi swap transaction — sender is 0xMyDeFiWallet, recipient is 0xDexRouter, value is 0, and the data payload is 0x38ed1739... Please estimate the gas so I can budget the fee."}],"resultDescription":"Returns a gas estimate (in gas units) for the described Celo transaction, indicating approximately how much gas will be consumed if the transaction is executed with the provided parameters.","failureModes":["Invalid or malformed Ethereum-style address returns a 400 error","Malformed hex data payload causes parsing error","Celo RPC node unavailable leads to 503 or timeout","Insufficient input parameters may return an error or inaccurate estimate","Transaction that would revert on-chain may return an error or inflated estimate"],"whenToPreferThis":"Use this endpoint when you need to estimate gas costs specifically on the Celo blockchain before committing a transaction. It is purpose-built for Celo and paid per-call via x402, making it ideal for lightweight, on-demand pre-flight checks in agent workflows without requiring a full Celo node or web3 library.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:51:10.891Z","isFirstParty":false}