{"slug": "kalshi", "name": "Kalshi", "type": "exchange", "description": "Regulated prediction-market exchange whose API gives access to event-contract markets, order books and trading over REST, WebSocket and FIX; sports contracts are among its markets.", "website": "https://kalshi.com", "country": null, "sports": [], "data_types": ["betting-trading", "odds"], "protocols": ["rest", "websocket"], "free_tier": null, "trial_days": null, "demo": true, "contact_sales_only": false, "min_price": null, "plans_count": 0, "commercial_use": null, "betting_use": null, "redistribution": null, "rights_basis": null, "customer_types": [], "live_in_play": null, "sentiment": "mixed", "discussions": 32, "github_repos": 1383, "priority": 1.0, "logo": null, "logo_tone": null, "docs_url": "https://docs.kalshi.com/welcome", "pricing_url": null, "status_page_url": null, "founded_year": null, "product": {"name": "Kalshi Predictions API", "formats": ["json"], "auth_methods": ["api_key"], "sdk_languages": [], "openapi_url": null, "history_depth": null, "update_frequency": null, "claimed_latency_ms": null}, "plans": [], "access": {"restricted_countries": [], "available_only_in": null, "customer_types": null, "kyc_required": null, "odds_regions": null, "bookmakers_count": null, "notes": null, "source_url": null}, "usage_rights": {"commercial_use": null, "betting_use": null, "redistribution": null, "storage": null, "attribution_required": null, "media_included": null, "terms_url": null, "source_url": null, "basis": null}, "data_source": {"official_partners": [], "collection_methods": [], "source_url": null}, "support": {"sla_uptime": null, "channels": [], "sandbox": null, "changelog_url": null, "certifications": [], "payment_methods": [], "min_contract": null, "source_url": null}, "coverage": {"competitions_count": null, "key_leagues": [], "womens": null, "live_in_play": null, "markets": null, "languages": null, "id_mapping": null, "source_url": null}, "community": {"summary": "Regulated prediction-market exchange with REST, WebSocket and FIX access; sports contracts are used by many arbitrage and trading bots, with clients in C++ and others. Users note the historical API lacks order-book depth, and live-score milestones can show goals later cancelled by VAR. Often paired with Polymarket aggregators.", "sentiment": "mixed", "topics": ["data_quality", "coverage", "latency", "docs"], "pros": ["REST, WebSocket and FIX access", "Settled markets, trades and candlesticks available", "Large bot and client ecosystem"], "cons": ["No historical order-book depth for backtesting", "Live score milestones may reflect cancelled goals"], "evidence": ["https://www.reddit.com/r/algobetting/comments/1vy6xeb/", "https://www.reddit.com/r/algobetting/comments/1ub9jbe/", "https://www.reddit.com/r/algobetting/comments/1x8o9s1/", "https://github.com/Reddimus/kalshi-cpp", "https://github.com/Jon-Becker/prediction-market-analysis"]}, "discussions_list": [{"platform": "hn", "title": "Launch HN: Kalshi (YC W19) – A regulated exchange for trading on events", "url": "https://news.ycombinator.com/item?id=33696486", "date": "2022-11-21", "score": 148.0, "where": null}, {"platform": "reddit", "title": "Built a drop-in replacement for the-odds-api with prediction market data with free tier if anyone wants to try it", "url": "https://www.reddit.com/r/algobetting/comments/1scvcii/", "date": "2026-04-05", "score": 14.0, "where": "r/algobetting"}, {"platform": "reddit", "title": "I run an odds API. Tell me the one market or book you can't get anywhere, and I'll try to ship it this week", "url": "https://www.reddit.com/r/algobetting/comments/1x7s54a/", "date": "2026-10-16", "score": 11.0, "where": "r/algobetting"}, {"platform": "reddit", "title": "Prediction Market Arbitrage Bot for Kalshi + Polymarket: 160 alpha users, 9 releases, and what broke", "url": "https://www.reddit.com/r/SideProject/comments/1sotwje/", "date": "2026-04-18", "score": 9.0, "where": "r/SideProject"}, {"platform": "reddit", "title": "Does anyone else feel like in-game execution on sports prediction markets is missing conditional triggers?", "url": "https://www.reddit.com/r/algobetting/comments/1wzm1jx/", "date": "2026-10-07", "score": 7.0, "where": "r/algobetting"}, {"platform": "reddit", "title": "I built the all-in-one platform for tracking sharp money. Here's how it works:", "url": "https://www.reddit.com/r/sportsbetting/comments/1rv9l3n/", "date": "2026-03-16", "score": 3.0, "where": "r/sportsbetting"}, {"platform": "reddit", "title": "I built 2 APIs on my VPS and listed them on RapidAPI", "url": "https://www.reddit.com/r/SideProject/comments/1rsm39t/", "date": "2026-03-13", "score": 3.0, "where": "r/SideProject"}, {"platform": "reddit", "title": "Building an automated +EV betting bot for ProphetX: is this worth pursuing, or am I missing something?", "url": "https://www.reddit.com/r/algobetting/comments/1x75ukm/", "date": "2026-10-16", "score": 3.0, "where": "r/algobetting"}, {"platform": "reddit", "title": "Here's how I find sharp bets like this one before the game happens:", "url": "https://www.reddit.com/r/sportsbetting/comments/1qhh1tz/", "date": "2026-01-19", "score": 3.0, "where": "r/sportsbetting"}, {"platform": "reddit", "title": "Prediction Market Arbitrage Bot for Kalshi + Polymarket + SX.bet: 300 alpha users, 18 releases, and what shipped", "url": "https://www.reddit.com/r/SideProject/comments/1t6zh7p/", "date": "2026-05-08", "score": 2.0, "where": "r/SideProject"}, {"platform": "reddit", "title": "I built an automated sports prediction market trading platform: 2,300+ trades, 56.7% win rate. Here's what I've learned.", "url": "https://www.reddit.com/r/SaaS/comments/1rvy6ps/", "date": "2026-03-17", "score": 2.0, "where": "r/SaaS"}, {"platform": "reddit", "title": "Running a daily NFL research workflow on Kalshi for 2 months. How are you all getting data?", "url": "https://www.reddit.com/r/algobetting/comments/1x8o9s1/", "date": "2026-10-17", "score": 2.0, "where": "r/algobetting"}], "repos": [{"platform": "github", "title": "Jon-Becker/prediction-market-analysis", "url": "https://github.com/Jon-Becker/prediction-market-analysis", "date": "2026-10-29", "score": 3931.0, "where": null}, {"platform": "github", "title": "mvanhorn/printing-press-library", "url": "https://github.com/mvanhorn/printing-press-library", "date": "2026-11-03", "score": 2105.0, "where": null}, {"platform": "github", "title": "ryanfrigo/kalshi-ai-trading-bot", "url": "https://github.com/ryanfrigo/kalshi-ai-trading-bot", "date": "2026-10-30", "score": 642.0, "where": null}, {"platform": "github", "title": "rodlaf/KalshiMarketMaker", "url": "https://github.com/rodlaf/KalshiMarketMaker", "date": "2026-04-14", "score": 456.0, "where": null}, {"platform": "github", "title": "ImMike/polymarket-arbitrage", "url": "https://github.com/ImMike/polymarket-arbitrage", "date": "2025-12-09", "score": 307.0, "where": null}, {"platform": "github", "title": "realfishsam/prediction-market-arbitrage-bot", "url": "https://github.com/realfishsam/prediction-market-arbitrage-bot", "date": "2026-01-16", "score": 187.0, "where": null}], "videos": [{"title": "How To Get Live Bitcoin 15 Minute Prices From The Kalshi API - Full Guide", "url": "https://www.youtube.com/watch?v=05PzV52808o", "channel": "BOZ HUB", "date": "2026-10-14"}, {"title": "How To Build A Kalshi Trading Bot With The API - Full Guide", "url": "https://www.youtube.com/watch?v=yZJpV3Ey07I", "channel": "JustBOZ", "date": "2026-10-07"}, {"title": "Build a Kalshi Trading Tool in 5 Minutes", "url": "https://www.youtube.com/watch?v=vfo0hK2MEWU", "channel": "Unabated", "date": "2026-09-17"}, {"title": "How I Built a Profitable Kalshi AI Trading Bot Using Claude", "url": "https://www.youtube.com/watch?v=ZJUE6HXbVrI", "channel": "Alex Carter", "date": "2026-08-15"}, {"title": "How to Get a Kalshi API Key in 2026 (QUICK Guide)", "url": "https://www.youtube.com/watch?v=k19DNoifl5c", "channel": "Quickstruct", "date": "2026-06-03"}, {"title": "How to Use the Kalshi API with Python (Full Guide)", "url": "https://www.youtube.com/watch?v=yYjo1lzNoGI", "channel": "Robot Traders", "date": "2026-04-19"}], "notes": "Rate limit tiers (read tokens/sec): Basic 200, Advanced 300, Expert 600, Premier 1,200, Paragon 2,400, Prime 4,800, Prestige 12,000; higher tiers earned via volume. FIX is also offered. Whether market data is readable without auth was not confirmed. Trading fees not captured.", "checked_at": "2026-11-03", "alternatives": ["betfair", "matchbook", "polymarket", "smarkets", "betdaq"], "fit": {"best_for": "Developers building trading, market-data or analytics tools on a regulated prediction-market exchange, including sports event contracts.", "not_for": "Projects wanting conventional bookmaker odds or sports statistics; this is an exchange of event contracts, not a sports data feed.", "use_cases": ["Prediction-market trading bots", "Order book analysis", "Event-probability tracking"], "limitations": ["Rate limits set by tier, from 200 read tokens per second at Basic", "Higher tiers are earned through trading volume", "Sports are only some of the markets", "Trading fees and unauthenticated read access not confirmed"], "source_urls": ["https://docs.kalshi.com/welcome", "https://docs.kalshi.com/getting_started/rate_limits"]}, "score": {"overall": 49, "popularity": 55, "community": 58, "transparency": 30, "developer": 48, "confidence": "high", "reliability_flags": [], "rank": 63}}