Marketplace · API · x402

mudko.com/api/x402/verify-counterparty

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.

Endpoint	`https://mudko.com/api/x402/verify-counterparty`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~342 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x53598173ce7c26025bab0520d9e9d0c28fbcf7de
method	GET
last updated	2026-11-01T15:55:50.738Z

Use it

Call it (an x402 client pays automatically)

curl -i https://mudko.com/api/x402/verify-counterparty
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-f870a91ed1383e43

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}