Marketplace · API · x402

modelmarket.dev/x402/fair-random

Verifiable random bytes for a draw, raffle or tie-break: an ECVRF output over your seed plus a proof anyone can check offline. The same seed always gives the same output, so publish the seed first.

Endpoint	`https://modelmarket.dev/x402/fair-random`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~722 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x1218ff36C5d2e3B6A565CdB1A8B1AcCFc606Ad0a
method	POST
last updated	2026-10-19T06:30:14.094Z

Use it

Call it (an x402 client pays automatically)

curl -i https://modelmarket.dev/x402/fair-random
# 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/x402-4e39ffa20b78b055

Search the whole marketplace from your agent (MCP)

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