Fast Markets

List fast-resolving markets, optionally filtered by asset and time window. Parameters: - asset: Crypto ticker to filter by (BTC, ETH, SOL, XRP, DOGE, ...). Maps to a title search — e.g. asset=BTC searches for "Bitcoin". - window: Duration bucket (5m, 15m, 1h, 4h, daily). Matches Polymarket's standard crypto speed-trading tiers. - venue: Filter by venue ('polymarket', 'kalshi', 'sim'). - limit: Max markets to return (default 50). - sort: 'volume' to sort by 24h volume, 'resolves_at' for pure chronological. - market_status: 'live' (in settlement window now) or 'upcoming' (not yet in settlement window). Omit for all. Note: this filters by the strict `is_live_now` semantic below — for "currently tradable on Polymarket" use `is_orderbook_open` instead. Field semantics (frequently confused): - `is_orderbook_open` (bool): the market is accepting orders on Polymarket right now. True for every market in this response — the `status='active'` filter implies it. Equivalent to Gamma's `active && !closed`. - `is_live_now` (bool): the market is inside its final settlement window — the last `<window>` minutes before `resolves_at`. For a fast-5m market, true only in the 5 minutes before resolution. This is stricter than Gamma's "active" flag. Use this if you only want to act on markets in their immediate price-discovery window. If you want all tradable markets, use `is_orderbook_open` (or just consume the full list). Equivalent to GET /api/sdk/markets?tags=fast[,fast-<window>]&q=<asset_name>

GET /api/sdk/fast-markets

Fast Markets

cURL

curl --request GET \
  --url https://api.simmer.markets/api/sdk/fast-markets

422

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}

Query Parameters

asset · string | null

window · string | null

venue · string | null

limit · integer · default: 50

sort · string | null

market_status · string | null

Response

200

application/json

Successful Response