Marketplace · API · x402

fractalai.net.co/api/x402/sign

Pay-per-Proof: one post-quantum ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature over your message/hash, x402-native.

Endpointhttps://fractalai.net.co/api/x402/sign
Trust✓ Verified callable · 100% uptime over 1 checks · ~1012 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xC13789e82661635d9Cea38a53A0390CF9939ef4f
methodPOST
last updated2026-11-01T06:05:55.159Z

Use it

Call it (an x402 client pays automatically)

curl -i https://fractalai.net.co/api/x402/sign
# 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-fcbfedf6f22b3da2

Search the whole marketplace from your agent (MCP)

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

Related