Marketplace · API · x402

jev-x402.vercel.app/jev

Structured evaluation with TypeSafe's Jev (System One) model. Send any state plus typed questions — noul (true/false), choice (pick one), or score (ordinal scale) — and get back calibrated probabilities and confidence for each. Built for routing, classification, triage and policy checks where a fast, predictable, machine-readable answer beats prose.

Endpoint	`https://jev-x402.vercel.app/jev`
Trust	100% uptime over 1 checks · ~109 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	0xE813d34C0525E0fBb1e6478B86D40B83603C2008
method	POST
last updated	2026-11-12T19:12:28.546Z

Use it

Call it (an x402 client pays automatically)

curl -i https://jev-x402.vercel.app/jev
# 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/x402-23fa4a627413c9c1

Search the whole marketplace from your agent (MCP)

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

jev-x402.vercel.app/jev

Use it

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