{"uid":"cap_aY_Zzy9YmnfYr5dhqB-O3","slug":"blockscout-coin-balance-history-by-day-9b335893","name":"Blockscout Coin Balance History by Day","description":"Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data","url":"https://api.blockscout.com/%7Bchain_id%7D/api/v2/addresses/%7Baddress_hash_param%7D/coin-balance-history-by-day","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object","properties":{"chain_id":{"type":"string"},"address_hash_param":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"days":0,"items":[{"date":"string","value":"string"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wL6t0c7Jk5pvfTq3Ih41B","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the daily native coin (ETH, etc.) balance history for a specific address on a given blockchain network","exampleAgentPrompt":"Can you pull the daily native coin balance history for wallet address 0xAbCd1234... on Ethereum using Blockscout, so I can see how the balance changed over time?","exampleUseCases":[{"title":"Wallet balance trend analysis","prompt":"Show me the day-by-day ETH balance history for wallet 0x742d35Cc6634C0532925a3b8D4C9b5a0e3f1A2b3 on Ethereum mainnet — I want to see how the balance changed over the past few months."},{"title":"DeFi portfolio tracking on Polygon","prompt":"Fetch the daily MATIC coin balance history for address 0x1a2b3c4d5e6f7890abcdef1234567890abcdef12 on Polygon so I can track the inflows and outflows over time."},{"title":"Compliance audit of wallet activity","prompt":"I need the daily native coin balance snapshots for address 0xdeadbeef1234567890abcdef1234567890abcdef on Arbitrum — I'm doing a compliance review and need to see the balance at end of each day."}],"resultDescription":"Returns a JSON object containing a 'days' count and an 'items' array, where each item has a 'date' string and a 'value' string representing the native coin balance on that date for the given address on the specified chain.","failureModes":["Invalid or unsupported chain_id returns an error or empty response","Malformed address hash returns a 400-level error","Address with no transaction history may return empty items array","Chain not supported by Blockscout returns a 404 or error","Rate limiting or payment failure results in 402 or 429 response"],"whenToPreferThis":"Use this endpoint when you need a time-series of daily native coin (e.g. ETH, MATIC, BNB) balance snapshots for a specific wallet address on a supported chain. It is ideal for portfolio analytics, balance trend visualization, compliance audits, or detecting unusual inflow/outflow patterns over time. Prefer this over transaction list endpoints when you want aggregated daily balances rather than individual transaction records.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-10T12:42:07.306Z","isFirstParty":false}