$0.5
per call · USD Coin on Base
Crypto ETF Sentinel — Bulk POS AM-extracted operational profiles for every trading US spot crypto ETF: custodian, sponsor fee, authorized-participant counts, basket size, in-kind eligibility. Use when comparing fund plumbing across the whole trading universe in one call. Extraction quality varies by field (in-kind ~32% TP, AP roster ~70% TP).
Endpoint
GET https://api.cryptoetfsentinel.com/v1/profiles/latest3
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/profiles/latest", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://api.cryptoetfsentinel.com/v1/profiles/latest" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"data": [
{
"ap_count_cash": 5,
"ap_count_cash_delta": 1,
"ap_count_inkind": 3,
"basket_size": 40000,
"cik": "0001980994",
"custodian": "Coinbase Custody Trust Company, LLC",
"custodian_changed": false,
"fee_delta": null,
"fee_waiver_expiry": null,
"filing_date": "2026-01-15",
"inkind_eligible": true,
"reference_rate": "CME CF Bitcoin Reference Rate - New York Variant",
"sponsor_fee": "0.25%"
}
],
"meta": {
"total": 1
}
}Payment details
0x169bf49c6ee5a179190121ab8d180b50e31683d1USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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Cryptoetfsentinel · Profiles Comparison
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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.