{"uid":"cap_M2tIdMP5I2F9hcfCsvosF","slug":"crypto-shark-bazaar-native-balance-lookup-279ea596","name":"Crypto Shark Bazaar – Native Balance Lookup","description":"Low-cost x402 blockchain primitives, market intelligence, and AI utilities for autonomous agents","url":"https://cryptoshark.duckdns.org/chain/native-balance?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"network":"base","observedAt":"2026-09-16T00:00:00.000Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ma6yLsGAMV7J2opqLN2fN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves the native token balance for a blockchain address on a supported network (e.g. Base)","exampleAgentPrompt":"Can you check the current native token balance of wallet address 0xAbC123... on the Base network?","exampleUseCases":[{"title":"Agent wallet funding check","prompt":"Before I run the next batch of transactions, check whether my agent wallet 0xAbC123... on Base has enough native ETH to cover gas fees."},{"title":"User portfolio native balance","prompt":"What's the native token balance of my wallet 0xDef456... on Base right now?"},{"title":"Automated low-balance alert","prompt":"Check the native balance on address 0x789Ghi... on Base and let me know if it's fallen below 0.01 ETH."}],"resultDescription":"A JSON object containing the network name (e.g. 'base'), the observed native token balance for the queried address, and a timestamp (observedAt) indicating when the balance snapshot was taken.","failureModes":["Invalid or malformed wallet address returns an error response","Unsupported network identifier returns a validation error","Address with no on-chain activity may return a zero balance","Rate limiting or payment failure returns 402 or 429 status","Network RPC downtime may cause delayed or failed responses"],"whenToPreferThis":"Choose this endpoint when you need a quick, low-cost ($0.003 USDC) on-chain native balance lookup — especially for Base network — within an autonomous agent workflow that already uses x402 micropayment infrastructure. Prefer it over heavier blockchain indexers when you only need a single address's native balance and want minimal overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T06:48:25.765Z","isFirstParty":false,"canonicalSlug":"crypto-shark-bazaar-native-balance-lookup-279ea596"}