{"uid":"cap_dA_oH2NJN9jyVc7ZQFc9-","slug":"synapse-api-mantle-gas-estimator-73db29c0","name":"Synapse API — Mantle 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/mantle/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_FpQnEo53hv9CJDDB4_Y0x","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 Mantle blockchain network given sender, recipient, data, and value.","exampleAgentPrompt":"Estimate the gas needed for a Mantle network transaction from 0xAbC...123 to 0xDeF...456 with calldata 0xa9059cbb... and value 0 — I want to know how many gas units this will consume before I send it.","exampleUseCases":[{"title":"Pre-flight check before token transfer","prompt":"Before I send this ERC-20 transfer on Mantle, estimate the gas cost — from address 0xSender123 to 0xRecipient456, calldata is 0xa9059cbb000000000000000000000000recipient, value is 0."},{"title":"Smart contract deployment cost estimate","prompt":"I'm about to deploy a smart contract on Mantle — can you estimate the gas it will use? The deployer is 0xDeploy789, no recipient, and the bytecode data starts with 0x6080604052..."},{"title":"DeFi swap gas estimation on Mantle","prompt":"I want to do a token swap on a Mantle DEX — estimate the gas for this call from 0xMyWallet to 0xDexRouter with this swap calldata 0x38ed1739... and value 0.01 ETH."}],"resultDescription":"Returns a gas estimate (in gas units) for the described transaction on the Mantle network, allowing the caller to set appropriate gas limits before broadcasting a transaction.","failureModes":["Invalid or malformed address in 'to' or 'from' fields — returns error or rejects request","Invalid calldata hex string causes estimation failure","Transaction would revert on-chain — gas estimation may fail or return an error indicating revert","Network connectivity issues to Mantle RPC nodes — timeout or 503 error","Missing required fields result in a 400 bad request"],"whenToPreferThis":"Choose this endpoint when you need a fast, pay-per-call gas estimate specifically for the Mantle L2 network without managing your own RPC node. Ideal when building agents that need pre-flight cost validation before submitting transactions on Mantle, or when you want a lightweight serverless gas oracle without provisioning infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:58:10.785Z","isFirstParty":false}