{"uid":"cap_1WllAKfnXmh33PQPvfBuc","slug":"phantom-api-kaia-gas-estimator-4584fd03","name":"Phantom API — Kaia Gas Estimator","description":"Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.","url":"https://phantom-api-omega.vercel.app/api/kaia/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_aOwoLWZDe6DaHia3jFqrR","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 Kaia blockchain network before execution","exampleAgentPrompt":"Estimate the gas needed to call this Kaia smart contract — sending from 0xAbC123... to 0xDef456..., with calldata 0xa9059cbb000... and a value of 0 KAIA.","exampleUseCases":[{"title":"Pre-flight DeFi swap cost check","prompt":"Before I execute this token swap on Kaia, estimate the gas cost — the sender is 0x1234abcd..., the contract is 0x5678ef01..., and the calldata is 0x38ed1739... with no ETH value attached."},{"title":"Smart contract deployment gas planning","prompt":"I'm about to deploy a new smart contract on Kaia — can you estimate how much gas it will take? From address is 0xMyWallet..., the deployment bytecode is 0x6080604052..., and value is zero."},{"title":"Safe transfer validation before sending KAIA","prompt":"I want to send 10 KAIA from 0xSenderWallet... to 0xRecipient..., can you estimate the gas fee so I know if I have enough to cover the transaction?"}],"resultDescription":"Returns an estimated gas amount (in gas units) needed to execute the specified transaction on the Kaia network, allowing callers to budget fees and validate transaction feasibility before broadcasting.","failureModes":["Invalid or malformed address in 'to' or 'from' fields returns an error","Malformed calldata in 'data' field causes estimation failure","Transaction would revert on-chain — estimator returns revert error or zero gas","Network congestion or RPC node unavailability causes timeout","Missing required fields returns 400-level validation error","Payment not included or insufficient — returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need to estimate gas specifically on the Kaia blockchain network before sending a transaction. Ideal for DApp developers, DeFi bots, and wallet agents that need to pre-validate transaction costs on Kaia without executing a real transaction. Prefer over generic RPC calls when you want a pay-per-call, infrastructure-free approach without running your own node.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:54:54.966Z","isFirstParty":false}