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Historical options data,
over a REST API.

Every US equity option, every trading day. Pull EOD quotes, intraday ticks, trade prints, and full chain snapshots from a single key.

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Endpoints

/v1/options/chainFull expiration snapshot
/v1/options/quote/eodDaily close aggregates
/v1/options/quote/intradaySub-second tick data
/v1/options/tradesTape-A, B, and C prints
/v1/options/healthSystem and provider status

EOD Quote Snapshot

curl https://api.czar28.com/v1/options/quote/eod \
  -H "Authorization: Bearer sopk_live_..." \
  -G --data-urlencode "root=AAPL" \
     --data-urlencode "exp=20260116" \
     --data-urlencode "strike=180" \
     --data-urlencode "right=C" \
     --data-urlencode "start_date=20250101" \
     --data-urlencode "end_date=20250601"

System Status

All systems operational

99.9% Uptime SLA →

Provider

ThetaData

Institutional-grade, low-latency options feed.

Coverage

12y+

History

5.2k

Tickers

1B+

Quotes served

Pricing

$0 / month to start

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Bearer-token auth
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