Marketplace · API · x402

settle.moneytools.dev/v1/spend/check

Ask "is this within my agent's budget?" before it signs an x402 payment — 0.005 USDC per check, no API key. Advisory: complements your wallet's own hard limits. Advisory pre-sign check (your wallet's own hard limits still apply; we cannot block a payment): 'would this payment exceed my cap?'. Pass the 402 PAYMENT-REQUIRED (header or body) or amountUsd, plus payer and optional sessionId/host. Returns allow|deny with reasons and remaining budget; reserve:true also logs it as pe

Use it

Call it (an x402 client pays automatically)

curl -i https://settle.moneytools.dev/v1/spend/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-abafee2b4a880e99

Search the whole marketplace from your agent (MCP)

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