Live and pre-match odds from Fonbet, served as JSON exactly as Fonbet publishes them — every market, line and id, unchanged. Files (1) - site_livepre_fonbet.json — Every Fonbet event of every sport, live (place: "live") and pre-match (place: "line"), with odds in customFactors Freshness: about every 4–5 s (live and pre-match in one file). Odds: Decimal (v), keyed by numeric factor id (f); lines in pt. Cross-bookmaker id: None — match on team1, team2 and startTime. How to use it 1. GET /v1/files lists the files your subscription can read. 2. GET /v1/data/{filename} returns {"company", "file", "updated_at", "data"}; data is Fonbet's own JSON. 3. Poll with If-Modified-Since (send back the Last-Modified header): you get 304 Not Modified until the file changes. Request gzip — responses arrive about 6–10 times smaller. Up to 10 requests per second per file at the origin; your plan's quota is set on this listing. Documentation: field map, real samples and a tested Python parser for match-result odds — https://arbplay.app/api/fonbet-odds-api · full reference — https://arbplay.app/api/docs ArbPlay is independent and not affiliated with or endorsed by Fonbet or its operator. Informational use; the API does not place bets.