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Blockscout Coin Balance History by Day
x402
Blockscout Coin Balance History by Day is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-10).
Returns the daily native coin (ETH, etc.) balance history for a specific address on a given blockchain network
Price / call$0.002
Success—
StatusUnknown
How this service works
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
Output
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.
Example use cases
Wallet balance trend analysis
“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.”
DeFi portfolio tracking on Polygon
“Fetch the daily MATIC coin balance history for address 0x1a2b3c4d5e6f7890abcdef1234567890abcdef12 on Polygon so I can track the inflows and outflows over time.”
Compliance audit of wallet activity
“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.”
Technical details
Endpoint
GEThttps://api.blockscout.com/%7Bchain_id%7D/api/v2/addresses/%7Baddress_hash_param%7D/coin-balance-history-by-dayWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"days": 0,
"items": [
{
"date": "string",
"value": "string"
}
]
}
}Tags
x402
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