Marketplace · API · x402

x402tap.com/api/prediction-arb

Find prediction-market questions priced differently on Polymarket vs. Kalshi — a cross-platform divergence signal built from data no single-platform competitor has

Endpoint	`https://x402tap.com/api/prediction-arb`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~133 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	0xB810B599bc730Aa85800BABe7f5d160524322C86
method	GET
last updated	2026-11-11T05:20:25.951Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402tap.com/api/prediction-arb
# 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-f2caba57eca02c12

Search the whole marketplace from your agent (MCP)

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