Agent Exchange x402 census and directory

x402 census · cryptopulse.theaslangroupllc.com · 36a0b524940e · JSON

GET /api/research-brief

live

Institutional-grade, decision-ready crypto market brief — spot, derivatives (funding, options skew, DVOL), on-chain flows, regional premiums and macro-event odds. For trading and advisor agents.

Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.

Facts from the catalogs

FieldValue
URLhttps://cryptopulse.theaslangroupllc.com/api/research-brief
MethodGET
Price$0.50 USDC = 500000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, eip155:4663, eip155:137, eip155:42161, eip155:480, eip155:143, eip155:196, eip155:999, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k, xrpl:0, eip155:56
payTo0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
Sellercryptopulse.theaslangroupllc.com
Catalogscdp (row updated 2026-10-16)
Listed since (lower bound)2026-10-16 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-10-16
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-10-16 (catalog-reported, not verified on chain)
Category (keyword rule)trading-signals
Templated pathno
x402Version in catalog2
Service name / tagsCryptoPulse · crypto-research, market-research, trading-signals, on-chain-analysis, derivatives

Unpaid probe (census of 2026-10-22)

FieldValue
Probed at2026-10-22T00:28:00.614Z
HEAD402
GET402
Verdictlive live: valid 402 to an unpaid GET
402 carried inbody
x402Version in the 4022
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"500000","payTo":"0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Live payTo equals catalog payToyes
extensions.bazaar in the 402yes
PAYMENT-REQUIRED headerno
WWW-Authenticate offernone
Content type / server / CORSapplication/json / Vercel / *
Latency187 ms
ErrorPAYMENT-SIGNATURE header is required

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)

FieldValue
Distinct payers109
Payments1,066
USDC volume$90.47
Median payment$0.08
First / last payment2026-06-09 / 2026-09-30
Sampler-shaped share of payments99.2%
Payers that are not samplers1
Sourceforensics-2026-09-30
Address0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc (contract: CaliburEntry)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "assets": "BTC,ETH",
   "focus": "all",
   "horizon": "1week"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "as_of": "2026-06-22T18:00:00Z",
   "confidence": "medium",
   "headline": "BTC holds key support as funding resets neutral; macro risk skewed to dovish.",
   "key_catalysts": [
    {
     "direction": "uncertain",
     "event": "FOMC",
     "expected_impact": "high",
     "window": "this week"
    }
   ],
   "majors": {
    "BTC": {
     "bias": "neutral",
     "key_resistance": 0,
     "key_support": 0,
     "note": "",
     "price": 0
    }
   },
   "market_regime": "transition"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://cryptopulse.theaslangroupllc.com/api/research-brief' -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/36a0b524940e/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"36a0b524940e"} 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 cryptopulse.theaslangroupllc.com.