Crypto ETF Sentinel — Crypto ETF fee comparison
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.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
870 msmedian answer time
$0.1listed price per call
$0.1price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://api.cryptoetfsentinel.com/v1/xbrl/fee-war
| Category | Market data |
|---|---|
| Provider host | api.cryptoetfsentinel.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.1 | 870 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"crypto": "bitcoin"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"crypto": {
"description": "Filter by cryptocurrency slug (bitcoin, ethereum, solana, ...). Omit for all.",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"description": "The endpoint payload \u2014 type varies per route"
},
"error": {
"type": [
"string",
"null"
]
},
"meta": {
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
}
},
"type": "object"
}
},
"required": [
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}