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
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 89 ms
- Price
- $0.030 per call
- Paying buyers, last 30 days
- 6 (directory's own records)
- Paid calls, last 30 days
- 9
- Category
- Crypto prices
- Address
- https://api.cryptoetfsentinel.com/v1/profiles/comparison
Accuracy
Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.
For agents
This page as JSON: /sellers/2dea8aede999.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).