x402 census · verifier-staging.quantumshieldlabs.dev · f5f275bfe605 · JSON

POST /x402/verify

unprobed

Classify an agent or automation operation from bounded evidence and return a deterministic execution receipt. Use when completion claims need independent machine-readable verification. Claims alone never produce VERIFIED_COMPLETE.

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://verifier-staging.quantumshieldlabs.dev/x402/verify

Method POST

Price $0.05 USDC = 50000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e

Network eip155:84532 (base-sepolia) — testnet

payTo 0x550205ECa42aAE871CFED6BC943fB2cF59F1d057

Seller verifier-staging.quantumshieldlabs.dev

Catalogs cdp (row updated 2026-09-08)

Listed since (lower bound) 2026-09-08 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-08

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-08 (catalog-reported, not verified on chain)

Category (keyword rule) inference/llm

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 2

Payments 2

USDC volume $0.10

Median payment $0.05

First / last payment 2026-09-17 / 2026-09-29

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x550205ECa42aAE871CFED6BC943fB2cF59F1d057

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "claimed_state": "PASS",
   "evidence_items": [
    {
     "description": "Production health endpoint",
     "name": "health_check",
     "result": true,
     "source": "https://service.example/health"
    }
   ],
   "operation_id": "deploy-42",
   "required_verifications": [
    "health_check"
   ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "operation_id": "deploy-42",
   "reason_code": "V001",
   "terminal_classification": "VERIFIED_COMPLETE"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://verifier-staging.quantumshieldlabs.dev/x402/verify' -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/f5f275bfe605/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"f5f275bfe605"} 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 verifier-staging.quantumshieldlabs.dev.