x402 census · longwatch.dev · 817ce7cffe65 · JSON

GET /check

unprobed

This-session snapshot only — no watch, no cursor. Use when you will not come back. Required by type: url/rss/x402 need url; price needs coin plus above, below, or move_pct_24h; edgar needs ticker or cik. 8-K items are decoded, Form 4 trades parsed, and x402 probes validate the unpaid 402 challenge without sending payment. If the job spans runs, create_watch instead and persist watch_id + key.

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://longwatch.dev/check

Method GET

Price $0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x8CB34360d7BB93D4386384D549D69ecE30F1aB48

Seller longwatch.dev

Catalogs cdp (row updated 2026-09-28)

Listed since (lower bound) 2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-28

CDP quality counters 4 calls and 4 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags longwatch · monitoring, alerts, change-detection, website monitoring, page diff

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 3

Payments 3

USDC volume $0.003

Median payment $0.001

First / last payment 2026-09-14 / 2026-09-25

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x8CB34360d7BB93D4386384D549D69ecE30F1aB48

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "forms": [
    "8-K",
    "4"
   ],
   "ticker": "NVDA",
   "type": "edgar"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "result": {
    "company": "NVIDIA CORP",
    "filings": [
     {
      "form": "4",
      "summary": "CFO bought 10,000 shares"
     }
    ]
   },
   "type": "edgar",
   "watch": {
    "body": {
     "forms": [
      "8-K",
      "4"
     ],
     "ticker": "NVDA",
     "type": "edgar"
    },
    "create": "POST /watches"
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://longwatch.dev/check' -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/817ce7cffe65/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"817ce7cffe65"} 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 longwatch.dev.