Marketplace · API · x402

agent-tools-7936.onrender.com/preflight

Use before paying any x402 endpoint, so you don't pay a dead or mispriced one: checks it is alive, correctly payment-gated, its price/network/asset, latency, and whether it fits your max_price_usd. Sends one unpaid request, never pays. ~9% of paid listings we scanned were dead. Errors (never charged): 400 bad input, 422 source could not be fetched or parsed, 429 rate limited (30/min), 502 upstream failed.

Endpointhttps://agent-tools-7936.onrender.com/preflight
Trust✓ Verified callable · 100% uptime over 1 checks · ~137 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xb3Ecf17DDDeAeBdd16B3EBfAA79dC76347E98735
methodGET
last updated2026-11-11T12:36:16.08Z

Use it

Call it (an x402 client pays automatically)

curl -i https://agent-tools-7936.onrender.com/preflight
# 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-eb8ddfb10b34f956

Search the whole marketplace from your agent (MCP)

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

Related