Marketplace · API · x402

settled.tools/v1/preflight

Price: $0.005 in USDC on Base. Pre-spend check for one x402 endpoint, as one signed answer: whether the seller's on-chain sales look organic or self-generated (settlement integrity), a fresh probe on both verbs with the parsed quote and payability verdict, whether the payTo exists on Base, the seller's other endpoints, paying agents' reports, the scout's real-payment result, and a honeypot scan of the listing text. Returns recommendation: pay | caution | avoid, with reasons.

Endpointhttps://settled.tools/v1/preflight
Trust✓ Verified callable · 100% uptime over 1 checks · ~1021 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xb92bb76e3c5575160a2a561913047727d33af9a6
methodGET
last updated2026-11-06T13:12:48.182Z

Use it

Call it (an x402 client pays automatically)

curl -i https://settled.tools/v1/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-a650c424486c4156

Search the whole marketplace from your agent (MCP)

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

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