Odds-API.io vs BoltOdds: The Complete 2026 Comparison
James Whitfield
Looking for a real-time sports betting odds API? BoltOdds offers WebSocket streaming with near-zero latency and play-by-play feeds. But if you need deeper bookmaker coverage, Asian sharp book access, or transparent pricing, there are differences worth understanding.
TL;DR
| Feature | Odds-API.io | BoltOdds |
|---|---|---|
| Bookmakers | 250+ | ~33 |
| Sports & Leagues | 20+ sports, 12,000+ leagues | 10+ sports, major leagues |
| Regions | US, UK, EU, Asia, LATAM, AU | US, UK, Canada |
| Asian Sharps | ✓ (SBOBET, SingBet, 12Bet) | ✗ |
| WebSocket Streaming | ✓ (sub-100ms) | ✓ (near-zero latency) |
| Play-by-Play Feeds | ✗ | ✓ (4 streams) |
| Box Scores | ✗ | ✓ |
| Parlays Endpoint | ✗ | ✓ |
| Deep Links | ✗ | ✓ |
| Prediction Markets | ✓ (with depth, lay odds) | ✗ |
| Pricing | £99-£229/month | Contact for pricing |
| Free Tier | 100 req/hr | Free trial |
Real-Time Streaming
BoltOdds: Full WebSocket support with near-zero latency. Persistent connection with automatic reconnection, subscription filters by sport/sportsbook/game/market.
Odds-API.io: Full WebSocket streaming with sub-100ms latency and flexible subscription filters.
Both platforms deliver real-time updates without REST polling. The core difference isn't latency - it's what you're streaming from.
Bookmaker Coverage
BoltOdds covers approximately 33 bookmakers, primarily focused on US, UK, and Canadian operators like DraftKings, BetMGM, FanDuel, Betfair, PaddyPower, and Bet99.
Odds-API.io covers 250+ bookmakers globally, including Asian sharp books like SBOBET, SingBet, and 12Bet where sharp money moves first. For arbitrage systems or cross-regional opportunities, coverage breadth matters.
League Coverage
BoltOdds covers major leagues across NFL, NBA, MLB, NHL, plus European football (EPL, La Liga, Bundesliga, Serie A, Ligue 1, Champions League) and tennis Grand Slams.
Odds-API.io covers 12,000+ leagues, including:
- English National League (5th tier)
- German Regionalliga (4th tier)
- Brazilian state leagues
- Asian leagues Western APIs typically ignore
Lower-tier leagues often have softer lines with more edge for those who can access the data.
Unique Features
BoltOdds Strengths
- Play-by-Play Feeds: Four streams providing real-time in-game updates (scoring events, stats, field position, turnovers)
- Box Scores: Live and historical game statistics with full player and team data
- Parlays Endpoint: Retrieve parlay betting data including same-game parlays
- Deep Links: Direct links to sportsbook bet slips for seamless user experience
If you're building a live betting dashboard with play-by-play integration or need parlay data, BoltOdds offers specialized endpoints we don't currently provide.
Odds-API.io Strengths
- 250+ Bookmakers: 7x more coverage than BoltOdds
- Asian Sharp Books: SBOBET, SingBet, 12Bet
- 12,000+ Leagues: Deep coverage across global sports
- Prediction Markets: Polymarket and Kalshi with depth data and lay odds
- Transparent Pricing: Clear rate limits vs undisclosed pricing model
Pricing
BoltOdds offers Trial, Pro, and Custom plans but doesn't publicly disclose pricing.
Odds-API.io uses straightforward pricing:
- Free tier: 100 requests/hour, 2 bookmakers
- Starter (£99/month): 5,000 requests/hour, 5 bookmakers
- Growth (£179/month): 5,000 requests/hour, 10 bookmakers
- Pro (£229/month): 5,000 requests/hour, 15 bookmakers
- Enterprise: Custom limits available
No credit math. No surprises.
Prediction Markets
BoltOdds: Not mentioned in their documentation.
Odds-API.io: Full coverage of Polymarket and Kalshi with:
- Top-of-book prices with depth (liquidity at each price level)
- Lay odds (back and lay on every market)
- Native platform IDs for direct execution
If your app integrates prediction market data alongside sports betting, this is a key differentiator.
When BoltOdds Makes Sense
- You need play-by-play feeds for live in-game updates
- Box score integration is critical for your app
- You want parlay data (including SGPs)
- Deep links to sportsbook bet slips enhance your UX
- You're building a live betting dashboard focused on major US/UK leagues
When Odds-API.io Makes Sense
- You need broad bookmaker coverage (250+ vs ~33)
- You work with lower-tier or regional leagues
- You need Asian sharp book data (SBOBET, SingBet, 12Bet)
- You're building arbitrage, trading, or market-making systems
- You want prediction market data with depth and lay odds
- You prefer transparent, predictable pricing
- You need global coverage beyond major leagues
Get Started
Sign up for a free account and compare the coverage yourself. The best way to evaluate an odds API is to see what it returns for the sports and books you actually care about.