# TzKT Cyclic Statistics API

> TzKT Cyclic Statistics API is a paid API for AI agents from x402.tzkt.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns per-cycle aggregate statistics for the Tezos blockchain, such as block counts, rewards, fees, and staking data, filterable by cycle number.

## Facts

- Endpoint: GET https://x402.tzkt.io/v1/statistics/cyclic
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tzkt-cyclic-statistics-api-8f41227a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iU-IS54ymyYBndU_FxWnU

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tzkt-cyclic-statistics-api-8f41227a
```

Example prompt: Pull the cyclic statistics from TzKT for Tezos cycle 650, returning up to 50 results with XTZ values quoted in USD.

## When to prefer this

Use this endpoint when you need per-cycle aggregate statistics for the Tezos blockchain — such as rewards, fees, and block counts grouped by consensus cycle. It is ideal for analytics, dashboards, and staking research requiring historical, paginated cycle-level data. Prefer this over real-time block or operation endpoints when the granularity needed is at the cycle level rather than individual transactions.

## Known failure modes

- Invalid cycle number returns empty array or 400 error
- Unsupported quote currency may return error or default to XTZ
- Limit values exceeding server maximum may be capped or return 400
- Offset beyond available data returns empty array
- Network or indexer downtime returns 5xx errors

## 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 cycle-level statistics objects for the Tezos blockchain. Each object contains aggregated metrics for a given cycle, such as number of blocks, total rewards distributed, transaction fees collected, staking volumes, and XTZ values optionally denominated in a specified quote currency.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cycle": {
   "type": "string",
   "description": "Filter by cycle number"
  },
  "limit": {
   "type": "integer",
   "description": "Max items to return"
  },
  "quote": {
   "type": "string",
   "description": "Quote currency for XTZ values"
  },
  "offset": {
   "type": "integer",
   "description": "Pagination offset"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "array",
 "items": {
  "type": "object"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tzkt-cyclic-statistics-api-8f41227a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.tzkt.io](https://www.zero.xyz/host/x402.tzkt.io/llms.txt)