Crypto ETF Sentinel — Under-review US spot crypto ETF issuers stalled 148+ days without co
Crypto ETF Sentinel — Under-review US spot crypto ETF issuers stalled 148+ days without comment-letter activity (a proxy for SEC inactivity), sorted by days since last activity. Long stalls historically correlate with withdrawal risk. Use when screening pending crypto ETF filings for abandonment or withdrawal risk.
100000 (raw units)
price
2
calls / 30d
1
unique payers
2026-09-06
updated
Provider
api.cryptoetfsentinel.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "100000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "100000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"type": "http"
},
"output": {
"example": {
"data": [
{
"cik": "0001841175",
"crypto": "bitcoin",
"days_since_last_letter": 212,
"last_letter": "2026-02-05",
"name": "Osprey Bitcoin Trust",
"registration_date": "2025-06-30",
"review_rounds": 3,
"ticker": "OBTC"
}
],
"meta": {
"total": 1
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"description": "The endpoint payload — 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"
}
}
}Use it
curl
curl "https://api.cryptoetfsentinel.com/v1/pipeline/stalled" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://api.cryptoetfsentinel.com/v1/pipeline/stalled");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://api.cryptoetfsentinel.com/v1/pipeline/stalled")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/5925.json, and this resource appears in /discovery/resources and /discovery/search.