api.cryptoetfsentinel.com
Crypto ETF Sentinel — Chronological profile evolution for one US spot crypto ETF issuer: custodian, fee, AP-count and in-kind deltas across successive POS AM filings. Use when tracing how a fund's terms changed over time (fee cuts, custodia
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 80 ms
- Price
- $0.050 per call
- Paying buyers, last 30 days
- 3 (directory's own records)
- Paid calls, last 30 days
- 3
- Category
- Crypto prices
- Address
- https://api.cryptoetfsentinel.com/v1/profiles/history
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/ff4566e42db3.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).