screener derived

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "top": 20
    }
  },
  "output": {
    "type": "json",
    "example": {
      "asOf": "2026-09-01T03:42:26.765Z",
      "caveats": [
        "SHOWCASE, NOT THE PAID RESPONSE: what you see is one ranked row of the screener. markets is cut to 1 of the 8 rows this response carried. Nothing is masked or invented: every value is a dated measurement, kept so you can read the shape, the units and the field semantics. The schema published beside it is complete; a paid call returns the complete set.",
        "STATIC CONTRACT SAMPLE: what GET /screener?top=8 returns for the free public snapshot of 2026-09-01T03:42Z, restricted to the markets the seller's own flag reported open, then frozen. It is not current market intelligence: a live response carries its own asOf and current values, and GET /coverage is free and reports how many markets are decomposed right now.",
        "Descriptive FACT for the observed window. Never an accusation of fraud, nor a wash or skill label.",
        "apparentVolumeUsd counts executed trades, which is not the same as liquidity or open interest. It is taker-side and window-scoped, not lifetime.",
        "Concentration is measured among the OBSERVED TAKERS (the tape is taker-only). effectiveTraders = 1/HHI, which exposes what distinctTraders hides.",
        "onchainCounterparties is how many distinct counterparties the dominant taker traded against: a FACT, not a wash verdict. The proxy wallet is not the owner, and the graph is one hop deep.",
        "betResolvedInFavor means the dominant direction coincided with the resolution. One sample; neither PnL nor evidence of skill.",
        "resolutionRisk is the category BASE RATE, not a forecast for this market: dispute (how often markets like this are disputed at UMA) by flip (when disputed, how often the outcome REVERSES). On-chain fact; a small cell is directional only."
      ],
      "markets": [
        {
          "title": "Monterrey Open: Diane Parry vs Elise Mertens",
          "bucket": "broad",
          "resolution": {
            "category": "Sports",
            "categoryFlipRatePct": 31.9,
            "titleLooksUncheckable": false,
            "categoryDisputeRatePct": 0.4
          },
          "conditionId": "0xeef04a24987593cf21397c2ee92b8e82a58d43e2e5f7dde9bd3ebddda8377dbf",
          "marketClosed": false,
          "topTraderShare": 0.2214,
          "effectiveTraders": 11,
          "apparentVolumeUsd": 287740.83,
          "apparentVsBookFlag": null
        }
      ],
      "decomposed": 93,
      "windowHours": 71.95,
      "observedMarkets": 42605
    }
  }
}