E

eu-verify · Predict Polymarket

by eu-verify

GETBase

$0.01

per call · USD Coin on Base

Top open Polymarket prediction markets for a topic, ranked by 24h volume: event title, end date, and per-market outcome probabilities (0-1) with USD volume, from the public Gamma API (live on-chain odds). Query: ?tag=crypto|politics|economy|fed|... (any Polymarket tag slug) &limit=1-10 (default crypto, 5). JSON, 5min cache.

Endpoint

GET https://data.greeneris.io/v1/predict/polymarket

1

Calls / 30d

1

Unique payers / 30d

Aug 27

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://data.greeneris.io/v1/predict/polymarket", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://data.greeneris.io/v1/predict/polymarket?limit=3&tag=crypto" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "events": [
    {
      "end_date": "2026-07-13T12:00:00Z",
      "markets": [
        {
          "probabilities": {
            "No": 0.0015,
            "Yes": 0.9985
          },
          "question": "Bitcoin above $105,000 on July 13?",
          "volume_24h_usd": 297988.65
        }
      ],
      "slug": "bitcoin-above-on-july-13-2026",
      "title": "Bitcoin above ___ on July 13?",
      "volume_24h_usd": 1801399.98
    }
  ],
  "source": "Polymarket Gamma API (live on-chain prediction-market odds)",
  "tag": "crypto"
}

Payment details

Pay to0x6ab8efe305cce67daa48c97bde29c04402822dff
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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