Marketplace · API · x402

agent-paycheck.onrender.com/v1/check

Pre-payment risk and usefulness check for AI agents deciding whether to pay an x402 endpoint.

Endpointhttps://agent-paycheck.onrender.com/v1/check
Trust100% uptime over 1 checks · ~565 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x3772E91C287B7bE00a67Cfb2A72CC5Fb5958af06
methodPOST
last updated2026-10-29T21:19:12.426Z

Use it

Call it (an x402 client pays automatically)

curl -i https://agent-paycheck.onrender.com/v1/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/x402-0669dda544acd8a0

Search the whole marketplace from your agent (MCP)

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