Marketplace · API · x402

x402-doctor.fizzl.eu/api/v1/fix

How do I fix or improve my x402 endpoint? Diagnoses it, then returns per problem the concrete change as code for your stack (Express, Next.js, Hono or raw HTTP), filled in with your own payTo, amount, network and route. A working endpoint gets improvements to be found, trusted and paid: ERC-8004 identity, Base Builder Code, x402scan ownership proof, skill.md, browser paywall. Bulk: 1000 credits for $0.80 via /api/v1/credits.

Endpointhttps://x402-doctor.fizzl.eu/api/v1/fix
Trust✓ Verified callable · 100% uptime over 1 checks · ~506 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x6B0F4651eD42893ab58139938175E4a69f175F25
methodGET
last updated2026-10-29T17:09:55.868Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402-doctor.fizzl.eu/api/v1/fix
# 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/x402-5ee218cc43d7ac20

Search the whole marketplace from your agent (MCP)

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

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