# Scopes > An independent view of what the odds should be — and a public record of when we've been right. Scopes is an independent benchmark for prediction markets: for Fed/rates, polls, sports, energy (WTI), and stocks (S&P 500), we publish each market's price next to an independent Scopes Fair Value, the Scopes Divergence between them, and a public, mechanical record of which side proved right. ## What the data is - Scopes Fair Value: an independent fair value per event, computed from benchmarks (futures/nowcasts, de-vigged sharp books, options-implied curves), never from the betting-market price. - Scopes Divergence: market price minus Scopes Fair Value, in points. - Scorecard / calibration: every system-flagged divergence tracked to resolution — which side, market or fair value, was right. - Liquidity: top-of-book and order-book depth on both the market venues and the benchmark source (research asset; not yet in the public API). ## Machine access - OpenAPI (read API): https://scopes.com/api/openapi.json - API base (versioned, stable): https://scopes.com/api/v1 - Scopes Reference (bitemporal record) + data dictionary: https://scopes.com/reference · https://scopes.com/api/v1/dictionary - MCP server (Streamable HTTP): https://scopes.com/api/mcp - Methodology & changelog (how each fair value is computed; methodology_version key): https://scopes.com/docs/methodology - Tools: get_divergences, list_outcomes, get_series, get_calibration_summary, get_coverage - Chaining: list_outcomes returns a series_ref per market — {by:"outcome",outcome_id} for rates/polls, {by:"ticker",desk,ticker} for sports/stocks/energy — feed it to get_series. get_divergences also returns outcome_id (rates/polls sample). - Series axes: /api/v1/series?outcome= (rates/polls) or ?ticker=&desk= (sports/stocks/energy). Rate-desk series are withheld (403) pending licensing. - Point-in-time (as_of): /api/v1/series accepts as_of (ISO 8601) — responses reflect only data captured at or before it, no lookahead; a pinned past as_of on a paid key is reproducible. Fields: price + Scopes Fair Value + Scopes Divergence per captured timestamp. ## Access terms - Free tier: delayed data (divergences delayed ~24h; history trailing 30 days), computed summaries only, rate-limited. Live data and the full archive require a subscription; an API key inherits its owner's entitlements. - Terms of use (machine-readable pointer): https://scopes.com/terms - Every API and MCP response returns the terms URL in the X-Scopes-Terms header. ## Canonical pages - Scorecard: https://scopes.com/scorecard - Calibration: https://scopes.com/calibration - Studies: https://scopes.com/studies - Desks: https://scopes.com/rates · https://scopes.com/polls · https://scopes.com/sports · https://scopes.com/energy · https://scopes.com/stocks ## Attribution Cite as "Scopes" with a link to https://scopes.com. Research and information only — not investment advice.