Marketplace · API · x402

api.facts402.com/v1/recommend

Use when an agent must find which x402 API to call: takes need (the task in words) and returns the top-k paid endpoints (url, method, price, network, 30-day on-chain buyers, live-402 probe, risk flags, score) ranked over the x402-list.com catalog (CC BY 4.0) and sellers' own 402s. Own listings use the same formula. No match = 404. $0.005 USDC on Base; charged only on 2xx, never for invalid input.

Endpointhttps://api.facts402.com/v1/recommend
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149
methodGET
last updated2026-11-10T10:45:50.845Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.facts402.com/v1/recommend
# 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-c3cf3754b00da24e

Search the whole marketplace from your agent (MCP)

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