x402 census · api.demandex.dev · 3f48fed1d2d2 · JSON

GET /v1/opportunities/trending

unprobed

Paid ($0.01 USDC via x402). Returns the top 20 active opportunity cards by score as TEASERS — { id, slug, title, category, score, signalCount, lastSeen } only. No evidence and no productAngle (buy GET /v1/opportunity for the full card). While the index is still warming and no active cards exist yet, you get a no-charge 503 corpus_warming (never an empty charged list) — poll the free GET /v1/categ…

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.demandex.dev/v1/opportunities/trending

Method GET

Price $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0xf444abC53f5e1E73CAec7df64D147DDB119514A0

Seller api.demandex.dev

Catalogs cdp (row updated 2026-09-30), payai (row updated 2026-07-31)

Listed since (lower bound) 2026-07-31 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-30

CDP quality counters 72 calls and 11 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)

Category (keyword rule) gift-cards/commerce

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 19

Payments 58

USDC volume $0.91

Median payment $0.01

First / last payment 2026-07-01 / 2026-09-28

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0xf444abC53f5e1E73CAec7df64D147DDB119514A0

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {},
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "charged": true,
   "fetchedAt": "2026-07-18T11:45:00.000Z",
   "opportunities": [
    {
     "category": "audio",
     "id": "ckxxxx",
     "lastSeen": "2026-07-18T10:00:00.000Z",
     "score": 87.4,
     "signalCount": 34,
     "slug": "sony-wh1000xm5-replacement-headband",
     "title": "Sony WH-1000XM5 replacement headband"
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.demandex.dev/v1/opportunities/trending' -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/3f48fed1d2d2/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3f48fed1d2d2"} 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: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.demandex.dev.