Marketplace · API · x402

x402.freeq.one/tools/verify_worldid

World ID Proof Verifier: Verify a World ID 4.0 proof via the Worldcoin Developer Portal API. Generates an RP signature server-side, then proxies the full IDKit proof to developer.world.org. Returns { valid, nullifier, worldcoin_response }. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_worldid.

Endpoint	`https://x402.freeq.one/tools/verify_worldid`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~256 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	0x90b0dC893406d6eA63bb077ED59F5e8340f98d84
method	POST
last updated	2026-11-01T05:43:30.878Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402.freeq.one/tools/verify_worldid
# 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/x402-2d823f427ce4186a

Search the whole marketplace from your agent (MCP)

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