x402 census · agentresolver.vercel.app · 3911852ace12 · JSON

GET /api/payment-guard

unprobed

Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization.

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://agentresolver.vercel.app/api/payment-guard

Method GET

Price $0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x66E19457fFC829E8Ed74706f5c1399C6F6466dE8

Seller agentresolver.vercel.app

Catalogs payai (row updated 2026-09-24)

Listed since (lower bound) 2026-09-24 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-24

CDP quality counters not in the CDP catalog

Category (keyword rule) dev-tools/utilities

Templated path no

x402Version in catalog 2

Service name / tags AgentResolver Guard · x402, preflight, payment-safety, agent-payments

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 21

USDC volume $0.16

Median payment $0.001

First / last payment 2026-09-17 / 2026-09-24

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x66E19457fFC829E8Ed74706f5c1399C6F6466dE8

Declared input and output (extensions.bazaar)

{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "url": "https://example.com/api",
   "method": "GET",
   "maxPriceUsd": 0.01
  }
 },
 "output": {
  "type": "json",
  "example": {
   "prepaymentDecision": {
    "decision": "eligible",
    "eligibleForCallerAuthorization": true
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://agentresolver.vercel.app/api/payment-guard' -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/3911852ace12/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3911852ace12"} 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 · this record as JSON · all resources on agentresolver.vercel.app.