x402 census · mudko.com · 89a4bd61c63f · JSON
GET /api/x402/verify-counterparty
unprobed
Counterparty trust verification for agents: before transacting with a domain, verify its trust artifacts — DNSSEC + DNS-AID records, agent-card, live MCP endpoint, published JWKS, OASF record, x402/commerce declarations. Returns a 0-100 trust score with per-artifact evidence. $0.25 per lookup.
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://mudko.com/api/x402/verify-counterparty |
| Method | GET |
| Price | $0.25 USDC = 250000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x53598173ce7c26025bab0520d9e9d0c28fbcf7de |
| Seller | mudko.com |
| Catalogs | cdp (row updated 2026-09-01) |
| Listed since (lower bound) | 2026-09-01 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-01 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-01 (catalog-reported, not verified on chain) |
| Category (keyword rule) | identity/trust/kyc |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Agent Trust Verify · trust, verification, counterparty, agent-identity, dnssec |
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 | 12 |
| Payments | 14 |
| USDC volume | $0.67 |
| Median payment | $0.005 |
| First / last payment | 2026-07-27 / 2026-09-29 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x53598173ce7c26025bab0520d9e9d0c28fbcf7de |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"domain": "example.com (string, required - domain to verify)"
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"artifacts": {
"agent_card": true,
"commerce_declared": true,
"dns_aid": true,
"dnssec": true,
"jwks": false,
"mcp_live": true,
"oasf_record": false
},
"domain": "example.com",
"paid": true,
"trust_score": 72,
"verdict": "verifiable"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://mudko.com/api/x402/verify-counterparty' -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/89a4bd61c63f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"89a4bd61c63f"} 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 mudko.com.