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Flowseeker/API Reference/Underlying

Premium / volume by expiration for a strike

GEThttps://flow-api.skylit.ai/v1/underlying/{ticker}/by-strike/{strike}/expirations

For a single strike on the underlying, breaks the requested window's premium and volume out by expiration date.

Authorization

Authorization: Bearer <your API key>

Required. A missing header returns 401; an invalid, revoked or expired key returns 403.

Path parameters

  • tickerstringrequired

    Underlying ticker symbol (uppercase, e.g. SPY, AAPL).

  • strikestringrequired

    Strike price (decimal allowed; e.g. 580 or 580.5).

Query parameters

  • intervalstringdefault 1D
    1D1W7D
  • dte_filterstringdefault all
    all0-78-3031-9090+
  • datestringdate

    Trading date the request targets, in YYYY-MM-DD. Defaults to the current trading date (the most recent session that has settled enough data to be queryable).

Responses

  • 200

    Expiration breakdown for the strike.

  • 400

    Request validation failed.

  • 401

    Missing or invalid API key.

  • 402

    The account's shared Skylit credit balance is lower than this route's cost. Top up to continue. Carries X-Credits-Remaining: 0.

  • 429

    Per-minute rate limit exceeded.

Response fields

  • dataobjectrequired
    • tickerstringrequired
    • strikenumberdoublerequired
    • intervalstringrequired
      1D1W7D
    • totalCallPremiumnumberdoublerequired
    • totalPutPremiumnumberdoublerequired
    • topExpirationstringdaterequired
    • expirationCountintegerrequired
    • barsobject[]required
  • metaobjectrequired
    • timestampstringdate-timerequired

      Server-side timestamp the response was generated at.

    • requestIdstringrequired

      Short opaque ID for log correlation.

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