Marketplace · API · x402

www.api-xpay.com/x402/echo

Echo a JSON message back

Endpointhttps://www.api-xpay.com/x402/echo
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x589a2314a2E05F45e40C4823Da3Ba58D421dB3d8
methodPOST
last updated2026-11-09T14:20:32.355Z

Use it

Call it (an x402 client pays automatically)

curl -i https://www.api-xpay.com/x402/echo
# 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/x402-7f8236fddc480de4

Search the whole marketplace from your agent (MCP)

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