# Crypto ETF Sentinel — Single-Issuer XBRL Snapshot (CIK 0001980994)

> Crypto ETF Sentinel — Single-Issuer XBRL Snapshot (CIK 0001980994) is a paid API for AI agents from api.cryptoetfsentinel.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns the latest XBRL-extracted financial snapshot (AUM, NAV per share, shares outstanding, expense ratio) for a specific US spot crypto ETF issuer identified by SEC CIK number.

## Facts

- Endpoint: GET https://api.cryptoetfsentinel.com/v1/xbrl/issuers/0001980994
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-cryptoetfsentinel-com-7c5aa98c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_296ZEPbqnfP6nnnxF-sDq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-cryptoetfsentinel-com-7c5aa98c
```

Example prompt: Pull the latest XBRL financial snapshot for SEC issuer CIK 0001980994 — I need the current AUM, NAV per share, shares outstanding, and expense ratio for this spot crypto ETF.

## When to prefer this

Use this endpoint when you need precise, structured XBRL-sourced fund metrics (AUM, NAV, shares, expense ratio) for a specific US spot crypto ETF issuer identified by SEC CIK. Prefer this over bulk endpoints when you only need one issuer and want minimal cost ($0.02/call). Best when you need the most recently filed XBRL data rather than POS AM profile data.

## Known failure modes

- Issuer CIK not found or not a tracked crypto ETF — 404 response
- XBRL data not yet available for the issuer — empty or partial response
- expense_ratio field returns null if XBRL extraction missed it
- Payment not provided or insufficient — 402 Payment Required
- Rate limiting or service unavailability — 429 or 503 response

## How this service works

Single-issuer XBRL snapshot — latest AUM, NAV per share, shares outstanding, expense ratio. Some issuers may have ``expense_ratio: null`` if XBRL extraction missed it.

## Output

A JSON object containing the latest XBRL-extracted fund metrics for the specified issuer: AUM (assets under management), NAV per share, shares outstanding, and expense ratio (may be null if XBRL extraction did not capture it).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-cryptoetfsentinel-com-7c5aa98c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.cryptoetfsentinel.com](https://www.zero.xyz/host/api.cryptoetfsentinel.com/llms.txt)