$0.1
per call · USD Coin on Base
Crypto ETF Sentinel — Under-review US spot crypto ETF issuers stalled 148+ days without comment-letter activity (a proxy for SEC inactivity), sorted by days since last activity. Long stalls historically correlate with withdrawal risk. Use when screening pending crypto ETF filings for abandonment or withdrawal risk.
Endpoint
GET https://api.cryptoetfsentinel.com/v1/pipeline/stalled3
Calls / 30d
1
Unique payers / 30d
Sep 6
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://api.cryptoetfsentinel.com/v1/pipeline/stalled", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://api.cryptoetfsentinel.com/v1/pipeline/stalled" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"data": [
{
"cik": "0001841175",
"crypto": "bitcoin",
"days_since_last_letter": 212,
"last_letter": "2026-02-05",
"name": "Osprey Bitcoin Trust",
"registration_date": "2025-06-30",
"review_rounds": 3,
"ticker": "OBTC"
}
],
"meta": {
"total": 1
}
}Payment details
0x169bf49c6ee5a179190121ab8d180b50e31683d1USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Other and the homepage with a featured placement.
More from Cryptoetfsentinel & similar services
Cryptoetfsentinel · Profiles Comparison
api.cryptoetfsentinel.com
Crypto ETF Sentinel — Side-by-side comparison of ALL trading US spot crypto ETFs: POS AM profile, XBRL financials, market data and Fund Health metrics (premium/discount, tracking, implied NAV) per fund. Use when choosing between crypto ETFs or building a comparison table in one call. No params. Some Fund Health fields can be null if the market-data fetch fails.
Cryptoetfsentinel · Profiles Issuer
api.cryptoetfsentinel.com
Crypto ETF Sentinel — Latest POS AM-extracted operational profile for one US spot crypto ETF issuer: custodian, sponsor fee, AP counts, in-kind eligibility, basket size. Use when you need one fund's current plumbing terms. Pass the issuer's SEC CIK as cik.
Cryptoetfsentinel · Pipeline Risk Scores
api.cryptoetfsentinel.com
Crypto ETF Sentinel — Regulatory risk score (0-99) for every US spot crypto ETF (Bitcoin, Ethereum, Solana and more) under SEC review: a composite of filing cadence, time-in-stage, comment-letter intensity and historical approval baselines. Use when ranking or screening pending crypto ETF filings by regulatory risk. A heuristic benchmark, not a probability or prediction.