Otto AI · PM Crypto

by Otto AI

GETBaseSolana

$0.001

per call · USD Coin on Base

Crypto prediction markets on Polymarket: the highest-volume open BTC, ETH and crypto markets with live odds (outcome probabilities), best bid/ask, spread, 24h + total volume, liquidity, price change and end date. "Bitcoin above X", price targets, ETF and protocol events — what the prediction market ACTUALLY prices in, as flat JSON refreshed every 5 minutes. Crypto odds, Bitcoin prediction market, ETH probability. $0.001 per call.

Endpoint

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

57

Calls / 30d

17

Unique payers / 30d

Sep 10

Last called

exact

Payment scheme

Call this service

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

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

const res = await fetchWithPay("https://x402.ottoai.services/pm-crypto", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://x402.ottoai.services/pm-crypto" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "data": {
    "generatedAt": "2026-07-10T12:00:00.000Z",
    "marketCount": 25,
    "markets": [
      {
        "bestAsk": 0.63,
        "bestBid": 0.61,
        "conditionId": "0x99a1b2c3d4e5f60718293a4b5c6d7e8f9021324354657687980a1b2c3d4e5f60",
        "endDate": "2026-07-10T22:00:00Z",
        "eventTitle": "Bitcoin above ___ on July 10?",
        "lastTradePrice": 0.62,
        "liquidityUsd": 421889.2,
        "marketId": "531244",
        "oneDayPriceChange": -0.04,
        "oneWeekPriceChange": 0.11,
        "outcomes": [
          {
            "outcome": "Yes",
            "probability": 0.62
          },
          {
            "outcome": "No",
            "probability": 0.38
          }
        ],
        "question": "Will Bitcoin be above $130,000 on July 10?",
        "slug": "will-bitcoin-be-above-130000-on-july-10",
        "spread": 0.02,
        "url": "https://polymarket.com/event/bitcoin-above-what-on-july-10",
        "volume24hUsd": 1120433.8,
        "volumeTotalUsd": 5901220.4
      }
    ],
    "totalVolume24hUsd": 18240771.6,
    "venue": "polymarket"
  },
  "meta": {
    "degraded": false,
    "generatedAt": "",
    "stalenessSec": 0,
    "validUntil": ""
  },
  "status": "success"
}

Payment details

Pay to0x0e84ddedaae6a779c462c22a59f301ec31b6b808
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana
Schemesexact

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