Factual volume of graded player props over the last N days.

Aggregated counts only (no individual prop data) — same public-safe posture as /markets/hit-rates. NOTE: like every new /v1 route this is part of the public API contract and must be propagated to all the surfaces in CLAUDE.md's "Adding a public API endpoint" checklist (docs page, recipes, OpenAPI, RapidAPI, llms.txt/full, Python/Node/ MCP/CLI). There is no "showcase endpoint" exemption.

The point is the moat claim the-odds-api / OddsJam can't make at any tier: every one of these outcomes was graded against the real box score. This is a volume statement, never a profitability one.

Response: { "days": 30, "total_graded": 812334, # resolution set (incl. void) "total_settled": 798901, # won/lost/push (excl. void) "events_graded": 4120, "sports_covered": 33, "by_sport": [{"sport_key","title","graded","events"}...], "top_markets": [{"market_key","graded"}...] # top 12 }