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TzKT Balance History
x402
TzKT Balance History is a paid API for AI agents from x402.tzkt.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Returns the historical balance snapshots for a given Tezos account address over time, sampled at configurable block intervals.
Price / call$0.002
Success—
StatusUnknown
How this service works
TzKT is a comprehensive Tezos blockchain indexer API. Access blocks, operations, accounts, contracts, bigmaps, delegates, tokens and network stats through a fast REST API. No signup or API key required.
Output
An array of objects, each representing a balance snapshot at a particular point in time (block level), including the account's balance and optionally the balance converted to a requested quote currency (e.g. USD, EUR, BTC). The array is ordered and paginated according to the sort, offset, and limit parameters supplied.
Example use cases
Portfolio balance trend analysis
“Show me how the XTZ balance changed over time for wallet tz1gjaF81ZRRvdzjobyfVNsAeSC6PScjfQwN — give me 100 data points sampled every 500 blocks, sorted oldest to newest, with values quoted in USD.”
Whale wallet monitoring
“I want to see the historical balance snapshots for the Tezos address KT1TxqZ8QtKvLu3V3JH7Gx58n7Co4MCM2vXb, sampled every 2000 blocks, limit 200 records, in descending order so I see the most recent first.”
Audit trail for account activity
“Fetch the balance history for Tezos account tz1aRoaRhSpRYvFdyvgWLL6TGyRoGF51wDjM using a step of 100 blocks and return up to 500 entries — I need to reconstruct the balance changes for a compliance review.”
Technical details
Endpoint
GEThttps://x402.tzkt.io/v1/accounts/%7Baddress%7D/balance_historyWhen to prefer
Use this endpoint when you need time-series balance data for a specific Tezos account — ideal for charting portfolio growth, auditing balance changes, or monitoring large wallets over time. It is preferable over transaction-level endpoints when you want sampled snapshots rather than individual operation details. It suits analytics and visualization pipelines that need evenly spaced balance data points rather than raw operation logs.
Side effects
- Invalid or non-existent Tezos address returns empty array or 400 error
- Step value of 0 or negative integers cause a validation error
- Limit exceeding 10000 returns a 400 bad request
- Address format errors (wrong prefix or length) return 400
- Payment failure via x402 returns 402 Payment Required, blocking data access
- Offset beyond total records returns an empty array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| sort | string | Sorting direction |
| step | integer | Step size in blocks for sampling |
| limit | integer | Max items to return (1-10000) |
| quote | string | Quote currency for balance values |
| offset | integer | Pagination offset |
Output
Schema · Response
{
"type": "array",
"items": {
"type": "object"
}
}Tags
x402
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