{"uid":"cap_RQymtSvPeUc5ESWUKubAL","slug":"synapse-api-sei-gas-estimation-613a9dff","name":"Synapse API — SEI Gas Estimation","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/sei/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_KR0k691WMOdnqwyc3XWP7","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 cost for a transaction on the SEI blockchain network given sender, recipient, data, and value","exampleAgentPrompt":"Estimate the gas needed for a SEI transaction from 0xAbC...123 to 0xDeF...456 with a value of 1000000usei and calldata 0xabcdef.","exampleUseCases":[{"title":"Pre-flight fee check before transfer","prompt":"Before I send 500 SEI from my wallet 0xSenderAddress to 0xRecipientAddress, can you estimate how much gas it will cost so I don't underpay?"},{"title":"Smart contract interaction cost preview","prompt":"I want to call a SEI smart contract at 0xContractAddress with calldata 0xa9059cbb000...— can you tell me the estimated gas fee so I can budget accordingly?"},{"title":"DApp gas budgeting for batch planning","prompt":"I'm building a dApp on SEI and need to estimate gas for a transaction from 0xDeployerAddress to 0xContractAddress with data 0x60806040 and value 0 — what's the expected gas cost?"}],"resultDescription":"Returns a gas estimate (typically as a numeric value representing gas units or fee in the SEI network's denomination) for the described transaction, allowing callers to set appropriate gas limits or display fee previews before submission.","failureModes":["Invalid address format in 'to' or 'from' fields returns a 400 or validation error","Malformed hex in 'data' field causes parsing failure","SEI network RPC node unavailable returns a 503 or timeout error","Missing required fields may return incomplete estimates or errors","Value field with unsupported format may cause computation failure"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call gas estimate specifically for the SEI blockchain network without running your own RPC node. Prefer it over generic blockchain APIs when working within the SEI ecosystem, or when cost-per-call pricing is preferable to subscription models.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T00:38:22.959Z","isFirstParty":false,"canonicalSlug":"synapse-api-sei-gas-estimation-613a9dff"}