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Crypto ETF Sentinel — Single-Issuer XBRL Snapshot
x402
Crypto ETF Sentinel — Single-Issuer XBRL Snapshot is a paid API for AI agents from api.cryptoetfsentinel.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Returns the latest XBRL-extracted financial snapshot (AUM, NAV per share, shares outstanding, expense ratio) for a single US spot crypto ETF issuer identified by SEC CIK.
Price / call$0.05
Success—
StatusUnknown
How this service works
Crypto ETF Sentinel — Single-issuer XBRL snapshot for one US spot crypto ETF: latest AUM, NAV per share, shares outstanding, expense ratio, sponsor fees, total return. Use when you need one fund's latest SEC-reported financials in a single call. expense_ratio can be null if extraction missed it. Pass the issuer's SEC CIK as cik.
Output
A JSON object containing the issuer's most recently filed XBRL data: assets under management (AUM), NAV per share, shares outstanding, and expense ratio (which may be null if XBRL extraction did not capture it).
Example use cases
Example prompt
“Pull the latest XBRL snapshot for the Bitwise Bitcoin ETF — I need current AUM, NAV per share, shares outstanding, and expense ratio. Their SEC CIK is 0001980994.”
Technical details
Endpoint
GEThttps://api.cryptoetfsentinel.com/v1/xbrl/issuerWhen to prefer
Use this endpoint when you need a quick financial snapshot (AUM, NAV, shares, expense ratio) for a single US spot crypto ETF issuer identified by SEC CIK, without needing historical time series or comparative data across multiple issuers.
Side effects
- Invalid or non-numeric CIK returns a 400/422 validation error
- CIK does not correspond to a tracked crypto ETF issuer — returns 404 or empty result
- expense_ratio field may be null if XBRL extraction missed it for this issuer
- Payment not provided or insufficient USDC — returns 402 Payment Required
- Stale XBRL data if issuer has not filed recently
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cik": "0001980994"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"data": {
"aum": 53396223856,
"cik": "0001980994",
"company": "iShares Bitcoin Trust ETF",
"fact_count": 410,
"period_end": "2026-03-31",
"sponsor_fees": 36689450,
"total_return": -0.2215,
"expense_ratio": 0.0025,
"nav_per_share": 38.62,
"shares_outstanding": 1382480000
},
"meta": {
"note": null,
"page": null,
"limit": null,
"total": null,
"offset": null,
"full_count": null
},
"error": null
}Tags
x402
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