Marketplace · API · x402

402registry.com/buy/catalog

Catalog snapshot: every site in the 402registry catalog of sites verified visible to AI crawlers, as one JSON file rendered at purchase, every record dated. Basic fields are free at https://402registry.com/registry.json; this adds per site the findings by name and severity, the stack, the title and what the crawler saw without JavaScript (AI bot status codes, robots, sitemap, llms.txt). No input: one GET, one payment, $0.005.

Endpoint	`https://402registry.com/buy/catalog`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~141 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	0xbc0dcc70d8b5d85541d86ffc68d988fd59c22e68
method	GET
last updated	2026-11-06T09:56:28.21Z

Use it

Call it (an x402 client pays automatically)

curl -i https://402registry.com/buy/catalog
# 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/x402-3c9dc8187683632f

Search the whole marketplace from your agent (MCP)

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