Marketplace · API · x402

api.annalist.dev/v1/web/readiness

One site's agent readiness from our weekly census of 65,000 top sites: UCP and ACP agent checkout (its MCP endpoint, capabilities, payment handlers), A2A and MCP cards, a real llms.txt, robots.txt rules for 15 AI agents, x402, store and platform, Shopify store facts (ships-to countries, currency), and every change dated. A site not yet in the census is visited live. Measured by us. Signed.

Endpoint	`https://api.annalist.dev/v1/web/readiness`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xDE4805678438b6bfBbFE047fFF305C928653Fe17
method	GET
last updated	2026-11-12T19:12:25.366Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.annalist.dev/v1/web/readiness
# 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/x402-819b505faa011f3c

Search the whole marketplace from your agent (MCP)

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