x402 census · api.cryptoetfsentinel.com · 245bef9ac8fa · JSON

GET /v1/agent/filings/recent

unprobed

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.

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://api.cryptoetfsentinel.com/v1/agent/filings/recent

Method GET

Price $0.20 USDC = 200000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

payTo 0x169Bf49c6ee5A179190121Ab8D180B50e31683d1

Seller api.cryptoetfsentinel.com

Catalogs cdp (row updated 2026-09-06)

Listed since (lower bound) 2026-09-06 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-06

CDP quality counters 2 calls and 1 unique payers in 30 days, last call 2026-09-06 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags none

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 6

Payments 10

USDC volume $0.64

Median payment $0.05

First / last payment 2026-07-02 / 2026-09-29

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x169Bf49c6ee5A179190121Ab8D180B50e31683d1

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "currency": "bitcoin",
   "limit": 50
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "data": [
    {
     "accession": "0001193125-26-145203",
     "cik": "0002090011",
     "company": "21Shares Hyperliquid ETF",
     "currency": "hyperliquid",
     "filing_type": "CERT",
     "published": "2026-05-11T00:00:00+00:00",
     "source": "SEC",
     "title": "21Shares Hyperliquid ETF certified for exchange listing"
    }
   ],
   "meta": {
    "limit": 50,
    "offset": 0,
    "page": 1,
    "total": 3058
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.cryptoetfsentinel.com/v1/agent/filings/recent' -H 'accept: application/json'

The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/245bef9ac8fa/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"245bef9ac8fa"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.cryptoetfsentinel.com.