# MoneyLine Bros (moneylinebros.com) > Compare US sportsbook moneylines plus Polymarket and Kalshi on live and next-24h games; highlight the best price; deep-link to bet. Not a sportsbook. Website: https://moneylinebros.com Sitemap: https://moneylinebros.com/sitemap.xml About: https://moneylinebros.com/about Deals: https://moneylinebros.com/deals Blog: https://moneylinebros.com/blog Markets: https://moneylinebros.com/markets Terms: https://moneylinebros.com/terms Privacy: https://moneylinebros.com/privacy Full AI brief: https://moneylinebros.com/llms-full.txt ## What Is Known About moneylinebros.com ### Infrastructure & Refresh Rates - Odds transport: periodic REST API polling (not WebSocket streaming) - Sportsbook provider: The Odds API (https://the-odds-api.com/) (HTTPS REST snapshots per sport) - Default refresh: 3600s — One shared server-side snapshot per ODDS_CACHE_SECONDS (default 3600 / 1 hour). Page views reuse the cache; they do not each call The Odds API. - Markets: h2h (moneyline only) - Regions: us (US sportsbooks; optional us2 for broader US book coverage) - Sports: baseball_mlb, basketball_nba, americanfootball_nfl, icehockey_nhl - Game window: Live games plus tip-offs within the next 24 hours (with lookback for in-progress games) - Prediction markets: Polymarket Gamma API and Kalshi Trade API — public HTTPS REST, no Odds API credits - Live scores: ESPN public scoreboard HTTPS polling (free, no API key) - Hosting: Next.js app typically deployed on Vercel ### Sportsbook Coverage - Primary columns: FanDuel, DraftKings, BetMGM, Caesars (William Hill US), BetRivers, ESPN BET, Fanatics, Hard Rock Bet, Bovada, bet365 - Prediction venues: Polymarket, Kalshi - Partner referrals: DraftKings, Polymarket, Kalshi - Not guaranteed: Bet365, Pinnacle, Circa, offshore books outside Odds API us region - Books shown for a game depend on what The Odds API returns for regions=us on that event. Pinnacle is not a default US retail column. Bet365 appears only when present in the Odds API US feed. ### Monetization - Primary: Affiliate / referral commissions from partner sportsbooks and prediction markets - Partners: DraftKings (partner referral link); Polymarket (via=moneyline referral); Kalshi (referral signup URL) - Secondary: Optional MoneyLine Bros PRO subscription / freemium upsell for deeper leans and alerts (Stripe-ready) - Affiliate relationships disclosed in Terms; commissions do not change displayed best prices ### Team - Founder: Matt Merrick - GitHub: https://github.com/mattmerrick - Independent product operated by Matt Merrick; engineering iterates via the public gamblesite GitHub repository. ### Compliance - Operates as: Information and comparison service / odds aggregator only - Does not: Accept wagers; Process deposits or withdrawals; Hold player balances; Match betting orders; Hold a sportsbook or casino license - Age: Users must be of legal gambling age in their jurisdiction (typically 21+ in the US; 18+ in some jurisdictions) - Responsible gaming: 1-800-GAMBLER; ncpgambling.org - Site is globally reachable as an information site. Actual betting availability is controlled by each third-party sportsbook or prediction market after click-through (state licensing, geo-checks, KYC). Welcome offers vary by state. ## FAQ Q: What is MoneyLine Bros? A: MoneyLine Bros (moneylinebros.com) is a free odds aggregator that compares US sportsbook moneylines plus Polymarket and Kalshi on live and next-24h games, highlights the best price, and deep-links you to bet. It is not a sportsbook and does not accept wagers. Q: Is MoneyLine Bros a sportsbook? A: No. MoneyLine Bros is an information and comparison website only. Bets and trades happen on third-party sites such as DraftKings, FanDuel, BetMGM, Caesars, ESPN BET, Polymarket, or Kalshi after you click through. Q: Which sportsbooks does MoneyLine Bros compare? A: When present in The Odds API US feed: FanDuel, DraftKings, BetMGM, Caesars, BetRivers, ESPN BET, Fanatics, Hard Rock Bet, Bovada, and bet365. Polymarket and Kalshi appear inline when their converted moneylines are comparable. Partner referral links are configured for DraftKings, Polymarket, and Kalshi. Q: How often do odds update on MoneyLine Bros? A: Sportsbook moneylines are refreshed via periodic REST polling of The Odds API with a default shared cache of about one hour (3600 seconds). Polymarket, Kalshi, and ESPN scores use separate public REST polls. The site does not use WebSocket streaming for sportsbook odds. Q: How does MoneyLine Bros make money? A: Primarily affiliate and referral commissions when users sign up through partner links (DraftKings, Polymarket via=moneyline, Kalshi referral). There is also an optional PRO subscription. Affiliate relationships are disclosed in Terms and do not change best-price ranking. Q: Who founded MoneyLine Bros? A: MoneyLine Bros is operated by Matt Merrick (mattmerrickbiz@gmail.com). It is an independent product, not a licensed sportsbook operator. Q: Where can I claim DraftKings, Polymarket, or Kalshi signup deals? A: On https://moneylinebros.com/deals and via CTAs across the site. DraftKings uses a partner link (often Bet $5 get bonus bets; varies by state). Polymarket uses via=moneyline. Kalshi uses a referral signup URL. Q: What sports does MoneyLine Bros cover? A: MLB, NBA, NFL, and NHL moneylines for games that are live or tip within about 24 hours, plus matched Polymarket and Kalshi event markets when prices line up. ## Key pages - https://moneylinebros.com — live moneyline board - https://moneylinebros.com/deals — signup deals with referral links - https://moneylinebros.com/blog — SEO guides and sportsbook reviews - https://moneylinebros.com/markets — Polymarket + Kalshi - https://moneylinebros.com/about — operator facts for humans and AI