Polymarket

Polymarket events carry real-money prediction-market signals: who is favoured to win the next US election, whether Bitcoin hits $200k, whether a model ships by year-end. One endpoint searches them, and it does the multi-query fan-out for you.

Base URL: /v1/polymarket/...

Quickstart

curl "https://www.socialcrawl.dev/v1/polymarket/research?query=bitcoin%20halving&limit=20" \
  -H "x-api-key: YOUR_API_KEY"

{
  "success": true,
  "platform": "polymarket",
  "endpoint": "/v1/polymarket/research",
  "data": {
    "items": [
      {
        "id": "evt-...",
        "title": "Will Trump win the 2028 election?",
        "slug": "trump-2028",
        "markets": [
          {
            "question": "Will Trump win the 2028 election?",
            "outcomes": "[\"Yes\",\"No\"]",
            "outcomePrices": "[\"0.32\",\"0.68\"]",
            "liquidity": 10000,
            "volume": 50000,
            "endDate": "2028-11-07T00:00:00Z",
            "oneDayPriceChange": 0.01,
            "oneWeekPriceChange": -0.02,
            "oneMonthPriceChange": 0.05
          }
        ],
        "tags": [{ "label": "Politics" }]
      }
    ]
  },
  "credits_used": 5,
  "credits_remaining": 95,
  "request_id": "req-...",
  "cached": false
}

Research prediction markets

research takes a free-text query and does the fan-out for you: it expands the topic into up to six search queries (the core subject plus its individual informative words), issues them in parallel, de-duplicates events by id, drops matches that share no informative word with your topic, and ranks what is left by topic-to-title similarity. Framing prefixes like "last 30 days" or "what are people saying about" are stripped before expansion, so natural-language topics work as written.

limit (default 10) caps results per result type on each fan-out call, which is how you bound the response size.

Each event carries outcome prices (Yes/No or per-candidate, normalised 0 to 1), 24h/1w/1m volume and liquidity in USD, day/week/month price changes, market end dates, and a competitiveness reading of how close to 50/50 the market is.

All endpoints

1 endpoint available.

Platform notes

• The research endpoint costs 5 credits because one request makes six or more upstream calls: multi-query expansion, parallel fan-out, then ranking. That is the price whichever limit you pass.
• Polymarket is a passthrough. Fields under data.items[] are exactly what the Gamma API returns. There is no field map and no computed-field layer (no engagement_rate, language, and so on), because prediction-market events have no author and no text content the way a social post does.
• There is no pagination. The upstream returns a single non-cursored result set, and limit is the only size control.
• Responses cache for 2 minutes. Markets move fast, so send Cache-Control: no-cache when you need a billed fresh read.
• Authentication is your SocialCrawl x-api-key. Polymarket's upstream is no-auth, but you still authenticate to us.

Next steps