Read ATOP orderbook

GET/backtests/atop/orderbook

Pull a bounded sample from registered historical L2 datasets for inspection before replay.

120 requests / minute per key (read tier). Returns the {success, message, data} + meta envelope.

Authorizations

Authorizationstringheaderrequired

Bearer token - an ito_* key (from Settings) holding the backtests:read scope.

Query parameters

sourcestring

Dataset alias: platform_l2, kalshi_pmxt (default platform_l2)

venuestring

Filter by venue name

startstringrequired

ISO 8601 start timestamp

endstringrequired

ISO 8601 end timestamp

limitint

Max rows (default 5000, max 50000)

offsetint

Pagination offset (default 0)

List execution models

Assemble backtest dataset

Request

curl "https://itomarkets.com/api/v1/backtests/atop/orderbook?start=VALUE&end=VALUE" \  -H "Authorization: Bearer $ITO_API_KEY"

ResponseJSON

{  "success": true,  "message": "Success",  "data": {    "rows": [      {        "epoch": 1718010000,        "venue": "polymarket",        "best_bid": 0.6,        "best_ask": 0.62,        "spread_bps": 33      }    ],    "total": 1  },  "meta": {    "source": "platform_l2",    "limit": 5000,    "offset": 0  }}