Otto AI · PM Search

by Otto AI

$0.001

per call · USDC on Base

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

GET https://x402.ottoai.services/pm-search

11calls / 30dmeasured by x402.new

3paying wallets / 30dmeasured by x402.new

100%uptime · 263ms p95measured by x402-list.com

Acompliance grademeasured by x402-list.com

Listed in 3 directories: bazaar, x402-list, x402-new. First seen 5 Sept 2026.

Call this service

The endpoint answers an unpaid request with an HTTP 402 and a payment challenge. @x402/fetch signs it, pays in USDC, and retries — you get the result back in one call.

TypeScript · @x402/fetch

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const pay = wrapFetchWithPayment(fetch, account);

const res = await pay("https://x402.ottoai.services/pm-search", {
  method: "GET",
});

console.log(await res.json());

Open the endpoint ↗On OpenSea's x402 Bazaar ↗Everything from x402.ottoai.services

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Uptime and compliance: x402-list.com (CC BY 4.0). Safety scores: x402.direct. Call and payer counts: x402.new. AMNT indexes this endpoint and does not host, operate or vouch for it.