GET

/api/public/performance

Retrospective Quotient forecast performance context

Auth x-quotient-api-key or x402

Parameters

None.

Response fields

Field	Type	Meaning
version	integer
calculationVersion	string
generatedAt	string
refreshTtlHours	number
methodology	object	Machine-readable definitions for resolved-only eligibility and outcome mapping, Brier comparison, benchmark, hypothetical returns, scopes, periods, and sampling methods.
population	object[]
accuracy	object[]	Brier comparisons for every scope × period × sampling method.
calibration	object[]	Ten-point probability-bin calibration context for Quotient and the market-at-forecast benchmark.
hypotheticalReturns	object[]	Uncosted hypothetical returns on explicitly resolved markets for buying the side Quotient considered underpriced at 5, 10, and 15 percentage-point disagreement thresholds.
caveats	string[]

Billing and limits

Calls are billed to prepaid credits, or per call over x402. The price above is the reference price; the 402 challenge returned at request time is what a call actually costs.

One request may be in flight at a time, and request starts must be at least one second apart. A rejected 429 is not billed. See rate limits.

curl

curl -H "x-quotient-api-key: qt_…" \
  "https://quotient-api-gateway.onrender.com/api/public/performance"

200 · application/json

{
  "version": 0,
  "calculationVersion": "…",
  "generatedAt": "…",
  "refreshTtlHours": 0,
  "methodology": {},
  "population": [
    {
      "scope": "all_markets",
      "forecasts": 0,
      "markets": 0,
      "resolvedForecasts": 0,
      "resolvedMarkets": 0,
      "firstForecastAt": null,
      "lastForecastAt": null
    }
  ],
  "accuracy": [
    {
      "scope": "…",
      "period": "all_time",
      "sample": "all_forecasts",
      "qBrier": null,
      "marketBrier": null,
      "qAdvantage": null,
      "actualYesRate": null,
      "forecasts": 0,
      "markets": 0
    }
  ],
  "calibration": [
    {}
  ],
  "hypotheticalReturns": [
    {
      "scope": "…",
      "period": "…",
      "minimumSpreadPp": 0,
      "horizon": "seven_days",
      "side": "all",
      "meanReturnPct": null,
      "medianReturnPct": null,
      "positiveShare": null,
      "forecasts": 0,
      "markets": 0
    }
  ],
  "caveats": [
    "…"
  ]
}