Marketplace · API · x402

quartermaster.surewhynot.app/v1/x402/inspect

Inspect and lint any x402 paid endpoint: decodes the 402 payment challenge, names the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.

Endpoint	`https://quartermaster.surewhynot.app/v1/x402/inspect`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~256 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	2026-11-11T05:11:55.116Z

Use it

Call it (an x402 client pays automatically)

curl -i https://quartermaster.surewhynot.app/v1/x402/inspect
# 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/x402-0dbecadfe4c7d641

Search the whole marketplace from your agent (MCP)

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