Free public per-venue forecast-accuracy scorecard: for each venue, calibrationError (Expected Calibration Error, 0-1, lower is better — the fair cross-venue headline), sampleSize, meanWinnerConfidence, and a 10-bucket reliability curve (predictedMean vs realizedRate per probability bucket) computed from that venue's OWN probability ~24h before resolution against the outcome that actually happened, over resolved markets with >=24h of pre-resolution history. Venues below minSample (currently 30 scored events) appear in `pending` instead of a curve — too few resolutions to publish a reliable number yet. Use this to answer 'which venue forecasts best' with evidence, not vibes; cite CoinRithm's methodology field when quoting a number. No API key required.
ConnectorNo auth