# Crypto ETF Sentinel — Approval Outcome Score

> Crypto ETF Sentinel — Approval Outcome Score is a paid API for AI agents from api.cryptoetfsentinel.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-14).

Returns a 1-99 approval-likelihood score for each under-review US spot crypto ETF issuer, weighted against historical approved and withdrawn filing baselines

## Facts

- Endpoint: GET https://api.cryptoetfsentinel.com/v1/pipeline/outcome-signals
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-cryptoetfsentinel-com-8a9dd00e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dm_BoABTxOHAP4QXehxk7

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-8a9dd00e
```

Example prompt: Pull the latest approval outcome scores for all under-review US spot crypto ETF issuers — I want to see which ones have filing patterns that look most like the ETFs that got approved historically.

## When to prefer this

Choose this endpoint when you need a quantitative, ranked probability signal for SEC approval of currently pending US spot crypto ETF filings, particularly when comparing multiple issuers simultaneously or integrating a regulatory likelihood score into a financial research workflow. Prefer this over raw SEC filing feeds or comment-letter history endpoints when you want a pre-computed, normalized score rather than raw document data.

## Known failure modes

- No under-review issuers currently exist — empty data array returned
- Payment of 0.5 USDC not completed — 402 Payment Required response
- API key or payment header missing — 401 Unauthorized
- Upstream SEC data unavailable — 503 Service Unavailable
- Rate limit exceeded — 429 Too Many Requests

## How this service works

Crypto ETF Sentinel — Approval-pattern signal (1-99) per under-review US spot crypto ETF issuer: how closely its filing pattern resembles historically approved vs withdrawn ETFs. Use when you need one comparable signal across all pending crypto ETF filings. A heuristic benchmark, not a probability or prediction.

## Output

A list of under-review US spot crypto ETF issuers each carrying a 1-99 approval-outcome score, where higher scores indicate the issuer's filing pattern more closely resembles prior SEC-approved ETFs versus withdrawn ones, with scores weighted against both approved and withdrawn historical baselines.

## Example request

```json
{
 "properties": "approval_likelihood,issuer_name,filing_status"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [
   {
    "cik": "0002060000",
    "name": "Bitwise Hyperliquid ETF",
    "crypto": "hyperliquid",
    "ticker": null,
    "outcome_score": 71
   }
  ],
  "meta": {
   "total": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-cryptoetfsentinel-com-8a9dd00e/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)