Oddsmagnet vs TourneyRadar

Oddsmagnet is a UK-focused odds-data provider covering football, basketball, baseball and more from 17+ bookmakers (William Hill, Betway, Unibet, and others), aimed at arbitrage comparison and machine-learning models trained on historical odds movement. The free tier only exposes odds aggregated to a daily level; paid Historical Odds Data and Betting Odds API tiers unlock full granularity and low-latency live feeds. A live probe of the real `api.oddsmagnet.com` backend confirmed it's a genuine, live AWS API Gateway service distinct from the bot-protected marketing domain, and reconfirmed a wildcard `Access-Control-Allow-Origin` on every request, keeping `cors: yes`.

TourneyRadar aggregates upcoming over-the-board chess tournaments -- currently spanning 46 countries' worth of national-federation listings -- with venue, arbiter, time-control, and FIDE-rating category details pulled from federation calendars. The API is free, keyless, and returns JSON with open CORS across tournament, country, and full-text search endpoints, though optional fields like entry fees and prize pools are frequently left null by the underlying source data.