x402 census · deadchannel.vercel.app · 6dc9baadfdac · JSON

POST /probe

unprobed

Use before paying an x402 endpoint you have not used before, when you cannot tell a working seller from a trap, a testnet address dressed as mainnet, or a listing whose price no longer matches its challenge. Returns a verdict — live, degraded, trap, testnet or dead — a 0-100 risk score, and the specific findings behind both, so an agent can decline a bad endpoint instead of learning about it by l…

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://deadchannel.vercel.app/probe

Method POST

Price $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

payTo 0x712c78928080Adb009E31315c0c3c7473dA9648a

Seller deadchannel.vercel.app

Catalogs cdp (row updated 2026-09-14)

Listed since (lower bound) 2026-09-14 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-14

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-14 (catalog-reported, not verified on chain)

Category (keyword rule) trading-signals

Templated path no

x402Version in catalog 2

Service name / tags deadchannel · preflight, payment-guard, x402, risk, agent-safety

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 2

Payments 2

USDC volume $0.01

Median payment $0.005

First / last payment 2026-08-30 / 2026-09-14

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x712c78928080Adb009E31315c0c3c7473dA9648a (contract)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "url": "https://api.example.com/paid-endpoint"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "latencyMs": {
    "p50": 180,
    "p99": 240
   },
   "priceUsd": 0.01,
   "problems": [
    {
     "detail": "No input or output schema.",
     "id": "schema-advertised",
     "status": "warn"
    }
   ],
   "risk": 25,
   "url": "https://api.example.com/paid-endpoint",
   "verdict": "degraded"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://deadchannel.vercel.app/probe' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. 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/6dc9baadfdac/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"6dc9baadfdac"} 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 deadchannel.vercel.app.