Marketplace · API · x402

quartermaster.surewhynot.app/v1/http-check

Liveness/latency pre-flight for a URL: is it up, HTTP status and class, response latency in ms, whether it redirects (and where), content-type and server.

Endpoint	`https://quartermaster.surewhynot.app/v1/http-check`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~739 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	0x5253666c40432f009ebd99908b9cd2a7fd1019cb
method	GET
last updated	2026-11-11T13:27:46.807Z

Use it

Call it (an x402 client pays automatically)

curl -i https://quartermaster.surewhynot.app/v1/http-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-d0fb0b5aefd57822

Search the whole marketplace from your agent (MCP)

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