Marketplace · API · x402

mudko.com/api/x402/citation-check

Live AI-citation check: runs fresh probes against major AI assistants and reports whether a domain is cited for its vertical's buying questions — citation rate per provider, list position, and whether the domain's agent-card was discovered. Fresh probes per call (not cached). $0.50 per check. Free companion diagnosis: /api/x402/deep-scan.

Endpoint	`https://mudko.com/api/x402/citation-check`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~329 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	2026-11-01T15:55:49.85Z

Use it

Call it (an x402 client pays automatically)

curl -i https://mudko.com/api/x402/citation-check
# 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-a6256fc319e9966a

Search the whole marketplace from your agent (MCP)

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