Crypto ETF Sentinel /v1/xbrl/fee-war
https://api.cryptoetfsentinel.com/v1/xbrl/fee-warOverview
Crypto ETF Sentinel — Crypto ETF fee comparison: current expense ratio for every trading US spot crypto ETF, cheapest first, outlier-capped at 200 bps to drop bad XBRL extractions. Use when finding the lowest-cost Bitcoin, Ethereum or other crypto ETF, or benchmarking a fee. Optional crypto filter.
Protocol
x402
Price
—
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
finance/regulatory
Provider
cryptoetfsentinel
Source
bazaar
Indexed
2026-05-12 14:55:50
Health
Status
healthy
Latency (p50)
57ms
Uptime (30d)
100.0%
Reliability Score
100/100
Last Checked
2026-09-08 12:56:08
Last Healthy
2026-09-08 12:56:08
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-09-08 12:56:08 | healthy | 402 | 57ms | |
| 2026-09-08 04:57:00 | healthy | 402 | 40ms | |
| 2026-09-08 00:51:23 | healthy | 402 | 61ms | |
| 2026-09-07 12:23:04 | healthy | 402 | 79ms | |
| 2026-09-07 01:14:33 | healthy | 402 | 42ms | |
| 2026-09-06 15:58:56 | healthy | 402 | 39ms | |
| 2026-09-06 09:45:28 | healthy | 402 | 40ms | |
| 2026-09-06 04:17:55 | healthy | 402 | 92ms | |
| 2026-09-05 16:38:05 | healthy | 402 | 86ms |