Marketplace · API · x402

x402.ottoai.services/pm-search

Search Polymarket prediction markets by free text: elections, Fed rates, crypto prices, sports, geopolitics, AI. Returns the top matching open markets with live odds (outcome probabilities), best bid/ask, spread, volume, liquidity, end date and event link as flat JSON. Prediction market search, event odds lookup, "what are the odds of X". $0.001 per call — 5x cheaper than comparable PM search.

Endpoint	`https://x402.ottoai.services/pm-search`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~701 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	0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808
method	GET
last updated	2026-11-09T05:31:23.408Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402.ottoai.services/pm-search
# 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-fe905f359ee7365b

Search the whole marketplace from your agent (MCP)

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