$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-crypto57
Calls / 30d
17
Unique payers / 30d
Sep 10
Last called
exact
Payment scheme
Call this service
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 -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
0x0e84ddedaae6a779c462c22a59f301ec31b6b808USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Games & Fun and the homepage with a featured placement.
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