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Crypto ETF Sentinel — XBRL Historical Time Series by CIK
x402
Crypto ETF Sentinel — XBRL Historical Time Series by CIK is a paid API for AI agents from api.cryptoetfsentinel.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
Returns a quarterly historical time series for a single XBRL financial concept (AUM, NAV, shares outstanding, expense ratio, etc.) for one US spot crypto ETF issuer identified by SEC CIK.
Price / call$0.1
Success—
StatusUnknown
How this service works
Crypto ETF Sentinel — Historical quarterly time series for one XBRL concept (AUM, NAV, shares outstanding, etc.) on one US spot crypto ETF issuer. Use when charting a single fund's growth or checking a reported figure against its SEC filings. Pass the issuer's SEC CIK as cik; optional concept, unit, taxonomy.
Output
A quarterly time series array of values for the requested XBRL concept (e.g. AUM, NAV per share, shares outstanding, expense ratio) for the specified issuer, sourced from SEC XBRL filings. Each data point includes the period date and the reported value.
Example use cases
Example prompt
“Pull the quarterly historical AUM time series from Crypto ETF Sentinel for the issuer with SEC CIK 0001980994 — I want to see how their assets under management have changed over time.”
Technical details
Endpoint
GEThttps://api.cryptoetfsentinel.com/v1/xbrl/seriesWhen to prefer
Use this endpoint when you need multi-quarter trend data for a specific XBRL financial concept (AUM, NAV, shares outstanding, expense ratio) for a single US spot crypto ETF issuer identified by their SEC CIK. Prefer this over the snapshot endpoint when you need historical context or want to chart trends over time, rather than just the latest values.
Side effects
- Invalid or non-existent CIK returns an error or empty result
- CIK does not correspond to a US spot crypto ETF issuer — no data found
- XBRL concept not reported by the issuer — empty series returned
- CIK format mismatch (non-numeric or too long) — schema validation error
- Payment not completed (x402 protocol) — 402 Payment Required response
- Issuer has not yet filed enough XBRL data — sparse or single-point series
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cik": "0001980994"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"data": [
{
"value": 17791246945,
"form_type": "10-Q",
"filed_date": "2024-05-08",
"period_end": "2024-03-31",
"fiscal_year": 2024,
"fiscal_period": "Q1"
},
{
"value": 19453015133,
"form_type": "10-Q",
"filed_date": "2024-08-08",
"period_end": "2024-06-30",
"fiscal_year": 2024,
"fiscal_period": "Q2"
},
{
"value": 23334553376,
"form_type": "10-Q",
"filed_date": "2024-11-07",
"period_end": "2024-09-30",
"fiscal_year": 2024,
"fiscal_period": "Q3"
},
{
"value": 51530013513,
"form_type": "10-K",
"filed_date": "2026-02-27",
"period_end": "2024-12-31",
"fiscal_year": 2025,
"fiscal_period": "FY"
},
{
"value": 47785797093,
"form_type": "10-Q",
"filed_date": "2025-05-07",
"period_end": "2025-03-31",
"fiscal_year": 2025,
"fiscal_period": "Q1"
},
{
"value": 74720071026,
"form_type": "10-Q",
"filed_date": "2025-08-05",
"period_end": "2025-06-30",
"fiscal_year": 2025,
"fiscal_period": "Q2"
},
{
"value": 87952924873,
"form_type": "10-Q",
"filed_date": "2025-11-06",
"period_end": "2025-09-30",
"fiscal_year": 2025,
"fiscal_period": "Q3"
},
{
"value": 67415764355,
"form_type": "10-Q",
"filed_date": "2026-05-07",
"period_end": "2025-12-31",
"fiscal_year": 2026,
"fiscal_period": "Q1"
},
{
"value": 53396223856,
"form_type": "10-Q",
"filed_date": "2026-05-07",
"period_end": "2026-03-31",
"fiscal_year": 2026,
"fiscal_period": "Q1"
}
],
"meta": {
"note": null,
"page": null,
"unit": "USD",
"limit": null,
"total": 9,
"offset": null,
"concept": "InvestmentOwnedAtFairValue",
"full_count": null
},
"error": null
}Tags
x402
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