Crypto ETF Sentinel
payment-ready until 2026-10-29
Curated SEC EDGAR intelligence on US spot crypto ETFs: 107 issuers with regulatory stage, filings feed, comment letters, XBRL financials, POS AM profiles and heuristic pipeline signals with a published accuracy record.
Call it x402 v2
x402 v2
- Base URL
- https://api.cryptoetfsentinel.com
- Payment
- x402 v2, header channel
$ curl -i 'https://api.cryptoetfsentinel.com/v1/agent/filings/recent' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 22 paid routes on api.cryptoetfsentinel.com
GET/v1/agent/filings/recent Base+Sol $0.20since 09-07
GET/v1/agent/issuers Base+Sol $1.00since 09-07
GET/v1/agent/snapshot Base+Sol $0.05since 09-07
GET/v1/events Base+Sol $0.10since 09-07
GET/v1/issuers/comment-letters Base+Sol $0.05since 09-07
GET/v1/pipeline/cohort-state Base+Sol $0.50since 09-07
GET/v1/pipeline/deltas Base+Sol $0.10since 09-07
GET/v1/pipeline/launch-monitor Base+Sol $0.50since 09-07
14 more in Example 402 response
Prices as captured in the 402 response: median $0.10 across the 22 endpoints.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| GET | / | Crypto ETF Sentinel · SEC filing tracker for US spot crypto ETFs across Bitcoin, Ethereum, Solana, XRP and 30+ assets: freshest filings within ~10 minutes of detection, newest first (50 by default, max 100). Covers S-1, 424B, 8-A12B, CERT, EFFECT. Use when polling for new crypto ETF filings. Optional currency, filing_type, date_after, limit, order_by. | $0.20 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Curated directory of every active US spot crypto ETF issuer, including staking ETFs (100+ entries, 30+ cryptocurrencies), each with regulatory stage (registration_filed / under_review / launch_imminent / trading / approved / withdrawn), ticker, exchange, owner organisation and SEC CIK. Use first, to discover CIKs, then drill into the paid cik routes for letters, XBRL and profiles. | $1.00 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Single-call market snapshot for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more): DB totals, filings by cryptocurrency and form type, regulatory-stage counts, and an as_of ISO timestamp. Use as a cheap heartbeat to decide whether anything changed before drilling into the catalogue. | $0.05 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Activity feed of recent notable SEC filings and comment letters for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more; last 60 days by default): S-1, 424B, 8-A12B, CERT, EFFECT and review correspondence, stage-filtered to drop trading-stage housekeeping. Use when a monitoring agent needs a 'what changed in crypto ETF regulation' heartbeat. Optional days and limit. | $0.10 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Full SEC ↔ issuer comment-letter history for one US spot crypto ETF issuer: UPLOAD/CORRESP pairs in order with a review-intensity profile. Comment-letter cadence is a leading indicator of approval proximity. Use when assessing how far along one filing's SEC review is. Pass the issuer's SEC CIK as cik. | $0.05 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Per-crypto regulatory wave state for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more): in_wave, first_anchor_date, first_anchor_ticker, approved vs pending member counts. Use when asking 'is asset X in an active SEC approval cycle right now?' or comparing cohorts across assets. | $0.50 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Week-over-week pipeline delta for US spot crypto ETFs: change in stage counts, filings-7d and under-review count vs a prior daily snapshot (days_back, default 7, max 90). Use when you want the net movement of the crypto ETF pipeline since your last check rather than a full snapshot. Returns 404 (no charge) when no snapshot exists. | $0.10 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Launch-timing tracker for launch_imminent US spot crypto ETF issuers: days waiting since 8-A12B plus percentile vs the historical 8-A12B → CERT/EFFECT distribution; the baseline is returned in meta on every call. Use when watching for imminent crypto ETF listings or gauging how overdue one is. Indicative timing, not a predicted launch date. | $0.50 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Approval-pattern signal (1-99) per under-review US spot crypto ETF issuer: how closely its filing pattern resembles historically approved vs withdrawn ETFs. Use when you need one comparable signal across all pending crypto ETF filings. A heuristic benchmark, not a probability or prediction. | $0.50 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Regulatory risk score (0-99) for every US spot crypto ETF (Bitcoin, Ethereum, Solana and more) under SEC review: a composite of filing cadence, time-in-stage, comment-letter intensity and historical approval baselines. Use when ranking or screening pending crypto ETF filings by regulatory risk. A heuristic benchmark, not a probability or prediction. | $0.50 | Base+ | USDC | header | since 09-07 |
| GET | / | 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. | $0.10 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Top-N most-active pre-approval US spot crypto ETF issuers by 42-day action-filing count (S-1/A, CORRESP and similar). High velocity means sustained SEC dialogue, a frequent leading indicator of stage transitions. Use when you want to know which pending crypto ETFs are moving right now. Optional limit param. | $0.50 | Base+ | USDC | header | since 09-07 |
| GET | / | 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 or building a comparison table in one call. No params. Some Fund Health fields can be null if the market-data fetch fails. | $0.03 | Base+ | USDC | header | since 09-07 |
| GET | / | 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, custodian switches). Pass the issuer's SEC CIK as cik; optional limit. | $0.05 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Latest POS AM-extracted operational profile for one US spot crypto ETF issuer: custodian, sponsor fee, AP counts, in-kind eligibility, basket size. Use when you need one fund's current plumbing terms. Pass the issuer's SEC CIK as cik. | $0.03 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Bulk POS AM-extracted operational profiles for every trading US spot crypto ETF: custodian, sponsor fee, authorized-participant counts, basket size, in-kind eligibility. Use when comparing fund plumbing across the whole trading universe in one call. Extraction quality varies by field (in-kind ~32% TP, AP roster ~70% TP). | $0.50 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Quarterly aggregate AUM growth across the US spot crypto ETF cohort, bucketed by BTC / ETH / SOL / multi / other. Use when sizing the crypto ETF market category or tracking quarter-over-quarter momentum from SEC-filed XBRL facts. | $0.10 | Base+ | USDC | header | since 09-07 |
| GET | / | 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. | $0.10 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Quarterly fee-war progression: average and median expense ratios over time across the US spot crypto ETF trading cohort, with per-issuer detail each quarter. Use when documenting how fee competition has compressed since the January 2024 spot Bitcoin ETF launch. Optional crypto filter. | $0.10 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Single-issuer XBRL snapshot for one US spot crypto ETF: latest AUM, NAV per share, shares outstanding, expense ratio, sponsor fees, total return. Use when you need one fund's latest SEC-reported financials in a single call. expense_ratio can be null if extraction missed it. Pass the issuer's SEC CIK as cik. | $0.05 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Crypto ETF AUM leaderboard: top-N US spot crypto ETF issuers ranked by assets under management or another XBRL TIER1 concept, from daily-updated XBRL facts. Use when you need the largest Bitcoin, Ethereum and other crypto ETFs by fund size. Optional concept, unit, taxonomy and limit params. | $0.10 | Base+ | USDC | header | since 09-07 |
| GET | / | Crypto ETF Sentinel · Historical quarterly time series for one XBRL concept (AUM, NAV, shares outstanding, etc.) on one US spot crypto ETF issuer. Use when charting a single fund's growth or checking a reported figure against its SEC filings. Pass the issuer's SEC CIK as cik; optional concept, unit, taxonomy. | $0.10 | Base+ | USDC | header | since 09-07 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 22 payloads captured by the monitor.
164 lines, scroll inside
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/issuers/comment-letters",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Full SEC ↔ issuer comment-letter history for one US spot crypto ETF issuer: UPLOAD/CORRESP pairs in order with a review-intensity profile. Comment-letter cadence is a leading indicator of approval proximity. Use when assessing how far along one filing's SEC review is. Pass the issuer's SEC CIK as cik."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cik": "0001980994"
}
},
"output": {
"type": "json",
"example": {
"data": {
"letters": [
{
"accession": "0001193125-24-004598",
"edgar_url": "https://www.sec.gov/Archives/edgar/data/1980994/000119312524004598/",
"form_type": "CORRESP",
"filing_date": "2024-01-09"
}
],
"review_profile": {
"stage": "trading",
"last_letter": "2024-01-09",
"review_rounds": 5,
"review_status": "approved"
}
},
"meta": {
"total": null
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"cik": {
"type": "string",
"pattern": "^[0-9]{1,10}$",
"description": "Zero-padded SEC CIK identifier (e.g. ``0001980994``). Optional — pass one to target a specific issuer (discover CIKs via /v1/issuers); omit to get the largest issuer by AUM."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (21)
Captured payload 2 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/xbrl/series",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Historical quarterly time series for one XBRL concept (AUM, NAV, shares outstanding, etc.) on one US spot crypto ETF issuer. Use when charting a single fund's growth or checking a reported figure against its SEC filings. Pass the issuer's SEC CIK as cik; optional concept, unit, taxonomy."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cik": "0001980994",
"concept": "InvestmentOwnedAtFairValue"
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"value": 67415764355,
"form_type": "10-K",
"filed_date": "2026-02-27",
"period_end": "2025-12-31",
"fiscal_year": 2025,
"fiscal_period": "FY"
}
],
"meta": {
"unit": "USD",
"total": 8,
"concept": "InvestmentOwnedAtFairValue"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"cik": {
"type": "string",
"pattern": "^[0-9]{1,10}$",
"description": "Zero-padded SEC CIK identifier (e.g. ``0001980994``). Optional — pass one to target a specific issuer (discover CIKs via /v1/issuers); omit to get the largest issuer by AUM."
},
"unit": {
"type": "string",
"description": "Unit filter; auto-resolved from concept if omitted."
},
"concept": {
"type": "string",
"default": "InvestmentOwnedAtFairValue",
"description": "XBRL TIER1 concept (e.g. InvestmentOwnedAtFairValue = AUM, NetAssetValuePerShare)."
},
"taxonomy": {
"type": "string",
"description": "Taxonomy filter; auto-resolved from concept if omitted."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 3 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "500000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/pipeline/cohort-state",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Per-crypto regulatory wave state for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more): in_wave, first_anchor_date, first_anchor_ticker, approved vs pending member counts. Use when asking 'is asset X in an active SEC approval cycle right now?' or comparing cohorts across assets."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": {
"solana": {
"in_wave": true,
"pending_count": 3,
"approved_count": 6,
"first_anchor_date": "2026-02-12",
"first_anchor_ticker": "BSOL"
}
},
"meta": {
"total": 34
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 4 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/xbrl/issuer",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Single-issuer XBRL snapshot for one US spot crypto ETF: latest AUM, NAV per share, shares outstanding, expense ratio, sponsor fees, total return. Use when you need one fund's latest SEC-reported financials in a single call. expense_ratio can be null if extraction missed it. Pass the issuer's SEC CIK as cik."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cik": "0001980994"
}
},
"output": {
"type": "json",
"example": {
"data": {
"aum": 67415764355,
"cik": "0001980994",
"name": "iShares Bitcoin Trust ETF",
"fact_count": 345,
"period_end": "2025-12-31",
"sponsor_fees": 174563824,
"total_return": 0.6084,
"expense_ratio": 0.0026,
"nav_per_share": 49.61,
"shares_outstanding": 1358680000
},
"meta": {
"total": null
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"cik": {
"type": "string",
"pattern": "^[0-9]{1,10}$",
"description": "Zero-padded SEC CIK identifier (e.g. ``0001980994``). Optional — pass one to target a specific issuer (discover CIKs via /v1/issuers); omit to get the largest issuer by AUM."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 5 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "200000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/agent/filings/recent",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — SEC filing tracker for US spot crypto ETFs across Bitcoin, Ethereum, Solana, XRP and 30+ assets: freshest filings within ~10 minutes of detection, newest first (50 by default, max 100). Covers S-1, 424B, 8-A12B, CERT, EFFECT. Use when polling for new crypto ETF filings. Optional currency, filing_type, date_after, limit, order_by."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 50,
"currency": "bitcoin"
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0002090011",
"title": "21Shares Hyperliquid ETF certified for exchange listing",
"source": "SEC",
"company": "21Shares Hyperliquid ETF",
"currency": "hyperliquid",
"accession": "0001193125-26-145203",
"published": "2026-05-11T00:00:00+00:00",
"filing_type": "CERT"
}
],
"meta": {
"page": 1,
"limit": 50,
"total": 3058,
"offset": 0
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"limit": {
"type": "integer",
"default": 50,
"maximum": 100,
"minimum": 1,
"description": "Max results (default 50, max 100)"
},
"currency": {
"type": "string",
"maxLength": 100,
"description": "Filter by cryptocurrency slug (e.g. bitcoin)."
},
"order_by": {
"enum": [
"published_desc",
"published_asc"
],
"type": "string",
"default": "published_desc",
"description": "Sort order."
},
"date_after": {
"type": "string",
"maxLength": 25,
"description": "Earliest publication date, ISO-8601 (e.g. 2026-05-01)."
},
"filing_type": {
"type": "string",
"maxLength": 50,
"description": "Filter by SEC form type (e.g. S-1, CERT)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 6 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/xbrl/aum-growth",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Quarterly aggregate AUM growth across the US spot crypto ETF cohort, bucketed by BTC / ETH / SOL / multi / other. Use when sizing the crypto ETF market category or tracking quarter-over-quarter momentum from SEC-filed XBRL facts."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"quarter": "2025-Q4",
"breakdown": {
"multi": 600000000,
"other": 300000000,
"solana": 1300000000,
"bitcoin": 118200000000,
"ethereum": 14100000000
},
"total_aum": 134500000000,
"period_end": "2025-12-31",
"issuer_count": 27
}
],
"meta": {
"unit": "USD",
"total": 29,
"concept": "InvestmentOwnedAtFairValue"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 7 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "500000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/pipeline/risk-scores",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Regulatory risk score (0-99) for every US spot crypto ETF (Bitcoin, Ethereum, Solana and more) under SEC review: a composite of filing cadence, time-in-stage, comment-letter intensity and historical approval baselines. Use when ranking or screening pending crypto ETF filings by regulatory risk. A heuristic benchmark, not a probability or prediction."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0001980994",
"name": "iShares Bitcoin Trust",
"crypto": "bitcoin",
"ticker": "IBIT",
"risk_score": 12,
"stage_label": "Trading"
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 8 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "30000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/profiles/issuer",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Latest POS AM-extracted operational profile for one US spot crypto ETF issuer: custodian, sponsor fee, AP counts, in-kind eligibility, basket size. Use when you need one fund's current plumbing terms. Pass the issuer's SEC CIK as cik."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cik": "0001980994"
}
},
"output": {
"type": "json",
"example": {
"data": {
"cik": "0001980994",
"custodian": "Coinbase Custody Trust Company, LLC",
"fee_delta": null,
"basket_size": 40000,
"filing_date": "2026-01-15",
"sponsor_fee": "0.25%",
"ap_count_cash": 5,
"reference_rate": "CME CF Bitcoin Reference Rate - New York Variant",
"ap_count_inkind": 3,
"inkind_eligible": true,
"custodian_changed": false,
"fee_waiver_expiry": null,
"ap_count_cash_delta": 1
},
"meta": {
"total": null
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"cik": {
"type": "string",
"pattern": "^[0-9]{1,10}$",
"description": "Zero-padded SEC CIK identifier (e.g. ``0001980994``). Optional — pass one to target a specific issuer (discover CIKs via /v1/issuers); omit to get the largest issuer by AUM."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 9 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/pipeline/deltas",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Week-over-week pipeline delta for US spot crypto ETFs: change in stage counts, filings-7d and under-review count vs a prior daily snapshot (days_back, default 7, max 90). Use when you want the net movement of the crypto ETF pipeline since your last check rather than a full snapshot. Returns 404 (no charge) when no snapshot exists."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"days_back": 7
}
},
"output": {
"type": "json",
"example": {
"data": {
"likely_delta": 0,
"stage_deltas": {
"trading": 1,
"under_review": -2
},
"at_risk_delta": -1,
"unclear_delta": 0,
"comparison_date": "2026-05-06",
"filings_7d_delta": 3,
"now_trading_delta": 1,
"under_review_delta": -2,
"pipeline_active_delta": -1
},
"meta": {
"total": null
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"days_back": {
"type": "integer",
"default": 7,
"maximum": 90,
"minimum": 1,
"description": "Compare against the snapshot this many days back (1-90, default 7)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 10 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/xbrl/leaderboard",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Crypto ETF AUM leaderboard: top-N US spot crypto ETF issuers ranked by assets under management or another XBRL TIER1 concept, from daily-updated XBRL facts. Use when you need the largest Bitcoin, Ethereum and other crypto ETFs by fund size. Optional concept, unit, taxonomy and limit params."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 20,
"concept": "InvestmentOwnedAtFairValue"
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0001980994",
"name": "iShares Bitcoin Trust",
"value": 56240000000,
"ticker": "IBIT",
"concept": "NetAssetsUSD",
"period_end": "2026-03-31"
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"unit": {
"type": "string",
"description": "Unit filter; auto-resolved from concept if omitted."
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1,
"description": "Max results (default 20, max 50)"
},
"concept": {
"type": "string",
"default": "InvestmentOwnedAtFairValue",
"description": "XBRL TIER1 concept (e.g. InvestmentOwnedAtFairValue = AUM, NetAssetValuePerShare)."
},
"taxonomy": {
"type": "string",
"description": "Taxonomy filter; auto-resolved from concept if omitted."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 11 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "500000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/pipeline/velocity",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Top-N most-active pre-approval US spot crypto ETF issuers by 42-day action-filing count (S-1/A, CORRESP and similar). High velocity means sustained SEC dialogue, a frequent leading indicator of stage transitions. Use when you want to know which pending crypto ETFs are moving right now. Optional limit param."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 6
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0002060000",
"name": "Bitwise Hyperliquid ETF",
"label": "ramping up",
"types": [
"S-1/A",
"CORRESP"
],
"crypto": "hyperliquid",
"signal": "ramping_up",
"ticker": null,
"filings": 4,
"density_days": 42
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"limit": {
"type": "integer",
"default": 6,
"description": "Top-N issuers to return (default 6)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 12 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/xbrl/fee-war/history",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Quarterly fee-war progression: average and median expense ratios over time across the US spot crypto ETF trading cohort, with per-issuer detail each quarter. Use when documenting how fee competition has compressed since the January 2024 spot Bitcoin ETF launch. Optional crypto filter."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"crypto": "bitcoin"
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"issuers": [
{
"cik": "0001980994",
"name": "iShares Bitcoin Trust ETF",
"ticker": "IBIT",
"expense_ratio": 0.0025,
"expense_ratio_bps": 25
}
],
"quarter": "2025-Q4",
"period_end": "2025-12-31"
}
],
"meta": {
"unit": "pure",
"total": 29,
"concept": "expense_ratio"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"crypto": {
"type": "string",
"description": "Filter by cryptocurrency slug (bitcoin, ethereum, solana, ...). Omit for all."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 13 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "500000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/pipeline/launch-monitor",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Launch-timing tracker for launch_imminent US spot crypto ETF issuers: days waiting since 8-A12B plus percentile vs the historical 8-A12B → CERT/EFFECT distribution; the baseline is returned in meta on every call. Use when watching for imminent crypto ETF listings or gauging how overdue one is. Indicative timing, not a predicted launch date."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0002107730",
"name": "Grayscale HYPE ETF",
"crypto": "hyperliquid",
"ticker": null,
"percentile": 0.18,
"days_waiting": 5,
"filing_date_8a12b": "2026-05-07"
}
],
"meta": {
"total": 1,
"historical_baseline": {
"p50": 28,
"p75": 52,
"p90": 78,
"sample_size": 64,
"max_historical": 120
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 14 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/events",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Activity feed of recent notable SEC filings and comment letters for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more; last 60 days by default): S-1, 424B, 8-A12B, CERT, EFFECT and review correspondence, stage-filtered to drop trading-stage housekeeping. Use when a monitoring agent needs a 'what changed in crypto ETF regulation' heartbeat. Optional days and limit."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"days": 60,
"limit": 15
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0002090011",
"link": "https://www.sec.gov/Archives/edgar/data/.../THYP_8A_Cert_2090011.pdf",
"crypto": "hyperliquid",
"company": "21Shares Hyperliquid ETF",
"timestamp": "2026-05-11T00:00:00+00:00",
"event_type": "filing",
"description": "21Shares Hyperliquid ETF certified for exchange listing",
"filing_type": "CERT"
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"days": {
"type": "integer",
"default": 60,
"maximum": 180,
"minimum": 1,
"description": "Recency window in days (1-180, default 60)."
},
"limit": {
"type": "integer",
"default": 15,
"maximum": 50,
"minimum": 1,
"description": "Max results (default 15, max 50)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 15 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/pipeline/stalled",
"mimeType": "application/json",
"description": "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."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0001841175",
"name": "Osprey Bitcoin Trust",
"crypto": "bitcoin",
"ticker": "OBTC",
"last_letter": "2026-02-05",
"review_rounds": 3,
"registration_date": "2025-06-30",
"days_since_last_letter": 212
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 16 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "100000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/xbrl/fee-war",
"mimeType": "application/json",
"description": "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."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"crypto": "bitcoin"
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0001980994",
"name": "iShares Bitcoin Trust",
"ticker": "IBIT",
"fee_bps": 25,
"fee_pct": "0.25%"
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"crypto": {
"type": "string",
"description": "Filter by cryptocurrency slug (bitcoin, ethereum, solana, ...). Omit for all."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 17 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "500000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/pipeline/outcome-signals",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Approval-pattern signal (1-99) per under-review US spot crypto ETF issuer: how closely its filing pattern resembles historically approved vs withdrawn ETFs. Use when you need one comparable signal across all pending crypto ETF filings. A heuristic benchmark, not a probability or prediction."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0002060000",
"name": "Bitwise Hyperliquid ETF",
"crypto": "hyperliquid",
"ticker": null,
"outcome_score": 71
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 18 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "30000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/profiles/comparison",
"mimeType": "application/json",
"description": "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 or building a comparison table in one call. No params. Some Fund Health fields can be null if the market-data fetch fails."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"aum": 67415764355,
"cik": "0001980994",
"name": "iShares Bitcoin Trust ETF",
"crypto": "bitcoin",
"ticker": "IBIT",
"exchange": "Nasdaq",
"custodian": "Coinbase Custody Trust Company, LLC",
"return_ytd": -3.1,
"basket_size": 40000,
"sponsor_fee": "0.25%",
"market_price": 49.72,
"expense_ratio": 0.0026,
"nav_per_share": 49.61,
"inkind_eligible": true,
"premium_discount_pct": 0.22,
"holdings_crypto_units": 762495.59,
"tracking_error_live_pct": null
}
],
"meta": {
"total": 34
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 19 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "500000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/profiles/latest",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Bulk POS AM-extracted operational profiles for every trading US spot crypto ETF: custodian, sponsor fee, authorized-participant counts, basket size, in-kind eligibility. Use when comparing fund plumbing across the whole trading universe in one call. Extraction quality varies by field (in-kind ~32% TP, AP roster ~70% TP)."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0001980994",
"custodian": "Coinbase Custody Trust Company, LLC",
"fee_delta": null,
"basket_size": 40000,
"filing_date": "2026-01-15",
"sponsor_fee": "0.25%",
"ap_count_cash": 5,
"reference_rate": "CME CF Bitcoin Reference Rate - New York Variant",
"ap_count_inkind": 3,
"inkind_eligible": true,
"custodian_changed": false,
"fee_waiver_expiry": null,
"ap_count_cash_delta": 1
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 20 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/agent/snapshot",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Single-call market snapshot for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more): DB totals, filings by cryptocurrency and form type, regulatory-stage counts, and an as_of ISO timestamp. Use as a cheap heartbeat to decide whether anything changed before drilling into the catalogue."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": {
"as_of": "2026-05-13T15:30:00+00:00",
"stage_counts": {
"trading": 89,
"under_review": 24,
"launch_imminent": 4,
"registration_filed": 18
},
"known_issuers": 105,
"latest_filing": "2026-05-13T00:00:00+00:00",
"total_filings": 3058,
"earliest_filing": "2013-07-01T00:00:00+00:00",
"filings_by_type": [
{
"count": 312,
"filing_type": "S-1"
},
{
"count": 38,
"filing_type": "CERT"
}
],
"filings_by_currency": [
{
"count": 842,
"currency": "bitcoin"
},
{
"count": 671,
"currency": "ethereum"
}
]
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 21 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/profiles/history",
"mimeType": "application/json",
"description": "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, custodian switches). Pass the issuer's SEC CIK as cik; optional limit."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"cik": "0001980994",
"limit": 20
}
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0001980994",
"accession": "0001193125-26-012345",
"custodian": "Coinbase Custody Trust Company, LLC",
"fee_delta": null,
"basket_size": 40000,
"filing_date": "2026-01-15",
"sponsor_fee": "0.25%",
"ap_count_cash": 5,
"inkind_changed": true,
"ap_count_inkind": 3,
"inkind_eligible": true,
"basket_size_delta": 0,
"custodian_changed": false,
"ap_count_cash_delta": 1,
"ap_count_inkind_delta": 3
}
],
"meta": {
"total": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"cik": {
"type": "string",
"pattern": "^[0-9]{1,10}$",
"description": "Zero-padded SEC CIK identifier (e.g. ``0001980994``). Optional — pass one to target a specific issuer (discover CIKs via /v1/issuers); omit to get the largest issuer by AUM."
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1,
"description": "Max results (default 20, max 50)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 22 of 22
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk",
"amount": "1000000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.cryptoetfsentinel.com/v1/agent/issuers",
"mimeType": "application/json",
"description": "Crypto ETF Sentinel — Curated directory of every active US spot crypto ETF issuer, including staking ETFs (100+ entries, 30+ cryptocurrencies), each with regulatory stage (registration_filed / under_review / launch_imminent / trading / approved / withdrawn), ticker, exchange, owner organisation and SEC CIK. Use first, to discover CIKs, then drill into the paid cik routes for letters, XBRL and profiles."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"data": [
{
"cik": "0001980994",
"name": "iShares Bitcoin Trust",
"stage": "trading",
"crypto": "bitcoin",
"ticker": "IBIT",
"exchange": "NASDAQ",
"owner_org": "BlackRock",
"first_registration_date": "2023-06-15"
}
],
"meta": {
"total": 104
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"description": "The endpoint payload — type varies per route"
},
"meta": {
"type": "object",
"properties": {
"limit": {
"type": [
"integer",
"null"
]
},
"total": {
"type": [
"integer",
"null"
]
},
"offset": {
"type": [
"integer",
"null"
]
}
}
},
"error": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
84/100 Solid
#183 of 385 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime 30d
- Compliance
- A 14/14 checks pass
- Price
- $0.03 to $1.00 p83 in Data
- Risk
- clean no risk flag
- Traction
- $8.17 30d 12 buyers, top buyer 64% (address, not entity)
14/14 compliance checks
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
402 terms unchanged since 2026-09-26. Last up 2026-10-22.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status online, 100% uptime 30d, 185ms response p95, x402 compliance 14 of 14, $0.03 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 385 listings, this one among them: the same 385 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Settled via coinbase ($8.17, 91 tx). Traction is a conservative undercount; first settlement seen 2026-05-12.
All measured facts
What it does
Curated SEC EDGAR intelligence on US spot crypto ETFs: 107 issuers with regulatory stage, filings feed, comment letters, XBRL financials, POS AM profiles and heuristic pipeline signals with a published accuracy record. Pay per call in USDC on Base or Solana via x402, or subscribe for an API key.
Crypto ETF Sentinel is a listed x402 Data API. Captured payment terms name Base, Solana. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-09-23 to 2026-10-22 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · Data
- uptime · latest daily rollup
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 185ms
- avg response
- 117ms
- total checks
- 2,707
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.03
- price (max)
- $1.00
- category percentile (min)
- p83 in Data
- category percentile (max)
- p91 in Data
- endpoints / prices
- 22 / 6
- model
- tiered
- stability
- 100%
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
- assessment volume 30d
- $8.17
- exact assessment volume 30d (USD)
- 8.17
- assessment recorded at (UTC)
- 2026-10-22T07:53:03.294Z
- buyers 30d
- 12
- settlements 30d
- 91
- measured since
- 2026-05-12 (start of our harvest window)
- last settlement
- 2026-10-22
- top buyer share
- 64% of 30d volume (address, not entity)
- top 3 buyers share
- 89% of 30d volume (addresses, not entities)
- concentrated volume
- no
- trend 7d vs 30d
- 0.31x the 30d daily rate
- networks
- eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
- volume all-time
- $68.42
- settlements all-time
- 418
- median settlement 30d
- $0.03
- max settlement 30d
- $1.00
Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.
- member since
- 2026-09-07
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 47ms | 22 | |
| Online | 402 | 98ms | 22 | |
| Online | 402 | 64ms | 22 | |
| Online | 402 | 153ms | 22 | |
| Online | 402 | 57ms | 22 | |
| Online | 402 | 145ms | 22 | |
| Online | 402 | 122ms | 22 | |
| Online | 402 | 124ms | 22 | |
| Online | 402 | 100ms | 22 | |
| Online | 402 | 80ms | 22 | |
| Online | 402 | 58ms | 22 | |
| Online | 402 | 127ms | 22 | |
| Online | 402 | 113ms | 22 | |
| Online | 402 | 132ms | 22 | |
| Online | 402 | 138ms | 22 | |
| Online | 402 | 41ms | 22 | |
| Online | 402 | 50ms | 22 | |
| Online | 402 | 39ms | 22 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
On-chain volume daily snapshots, USD 30d: $8.17, peak $5.29 on 10-05
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 100% on all 29 completed days
- Volume 30d
- $8.17
- Uptime
- 100% on all 29 completed days
More charts
Response time daily average, ms min 45ms, avg 115ms, max 197ms
09-23 to 10-22* UTC
Scores over time
x402 compliance low 14/14, high 14/14
09-23 to 10-22* UTC
Price percentile in Data own low to high; exact values below
09-23 to 10-22* UTC
Site signals present (of 6) own low to high; exact values below
09-23 to 10-22* UTC
Scores: one day per column, 09-23 to 10-22*, on the columns of Response time. Uptime held 100% every day in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
* today so far, partial (UTC).
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Daily snapshot total, 30d: $8.17, peak $5.29 on 10-05. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.
Daily address snapshots: 2026-09-23 to 2026-10-22 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.
Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Volume | Buyers | Settlements | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|---|---|---|
| 2026-09-23 | $0.03 | 1 | 1 | 100% | 171.92ms | 14/14 | p81 | 1/6 |
| 2026-09-24 | no data | no data | no data | 100% | 193.21ms | 14/14 | p81 | 1/6 |
| 2026-09-25 | $0.03 | 1 | 1 | 100% | 196.66ms | 14/14 | p81 | 1/6 |
| 2026-09-26 | no data | no data | no data | 100% | 126.00ms | 14/14 | p81 | 1/6 |
| 2026-09-27 | no data | no data | no data | 100% | 190.07ms | 14/14 | p80 | 1/6 |
| 2026-09-28 | $0.03 | 1 | 1 | 100% | 136.90ms | 14/14 | p81 | 1/6 |
| 2026-09-29 | $0.11 | 2 | 3 | 100% | 98.60ms | 14/14 | p81 | 1/6 |
| 2026-09-30 | $0.09 | 2 | 3 | 100% | 111.63ms | 14/14 | p81 | 1/6 |
| 2026-10-01 | $0.06 | 1 | 2 | 100% | 106.42ms | 14/14 | p81 | 1/6 |
| 2026-10-02 | $0.11 | 2 | 3 | 100% | 113.12ms | 14/14 | p81 | 1/6 |
| 2026-10-03 | $0.06 | 1 | 2 | 100% | 118.04ms | 14/14 | p81 | 1/6 |
| 2026-10-04 | $0.09 | 2 | 3 | 100% | 153.34ms | 14/14 | p81 | 1/6 |
| 2026-10-05 | $5.29 | 2 | 23 | 100% | 129.56ms | 14/14 | p82 | 1/6 |
| 2026-10-06 | $0.14 | 2 | 4 | 100% | 55.87ms | 14/14 | p82 | 1/6 |
| 2026-10-07 | $0.69 | 3 | 5 | 100% | 44.84ms | 14/14 | p82 | 1/6 |
| 2026-10-08 | $0.34 | 3 | 6 | 100% | 131.76ms | 14/14 | p82 | 1/6 |
| 2026-10-09 | $0.06 | 1 | 2 | 100% | 114.21ms | 14/14 | p82 | 1/6 |
| 2026-10-10 | $0.06 | 1 | 2 | 100% | 107.16ms | 14/14 | p82 | 1/6 |
| 2026-10-11 | no data | no data | no data | 100% | 100.63ms | 14/14 | p82 | 1/6 |
| 2026-10-12 | $0.16 | 2 | 4 | 100% | 105.21ms | 14/14 | p82 | 1/6 |
| 2026-10-13 | $0.06 | 1 | 2 | 100% | 102.90ms | 14/14 | p82 | 1/6 |
| 2026-10-14 | $0.14 | 3 | 4 | 100% | 99.63ms | 14/14 | p83 | 1/6 |
| 2026-10-15 | $0.03 | 1 | 1 | 100% | 108.73ms | 14/14 | p83 | 1/6 |
| 2026-10-16 | $0.06 | 1 | 2 | 100% | 126.36ms | 14/14 | p83 | 1/6 |
| 2026-10-17 | $0.12 | 3 | 4 | 100% | 111.40ms | 14/14 | p83 | 1/6 |
| 2026-10-18 | $0.14 | 2 | 4 | 100% | 88.08ms | 14/14 | p83 | 1/6 |
| 2026-10-19 | $0.06 | 1 | 2 | 100% | 45.15ms | 14/14 | p83 | 1/6 |
| 2026-10-20 | $0.06 | 1 | 2 | 100% | 77.25ms | 14/14 | p83 | 1/6 |
| 2026-10-21 | $0.12 | 3 | 4 | 100% | 114.86ms | 14/14 | p83 | 1/6 |
| 2026-10-22* | $0.03 | 1 | 1 | 100% | 79.90ms | 14/14 | p83 | 1/6 |
Alternatives in Data
5 of 384 other ranked services in Data, ordered by the same measured score.
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