A trading terminal forprediction markets
Run Deep Research, track whale wallets, and surface cross-venue arbitrage across Polymarket and Kalshi in one interface.
October 2024
Polls tighten — 538 shows virtual tie in swing states
$28M
+8c
@Fredi9999 just bought $28MYES @ 62c
November 5, 2024
Est. cost
Order will be placed on Polymarket CLOB
Balance: $1,000.00 USDCe
Everything you need to dominate prediction markets.
Professional-grade tools built for serious traders.
AI Agent Integration
Deploy containerized AI agents for each market. Real-time sentiment analysis, strategy execution, and autonomous trading.
Low-Latency Execution
Smart routing engine finds you the best fills and prices across all venues with sub-millisecond execution.
L1, L2, L3 Data
Full depth orderbook, order flow data, and market microstructure analytics at your fingertips.
Breaking Event Alerts
AI-powered news monitoring with instant alerts. Track whale wallets and smart money movements in real-time.
Backtesting Sandbox
Test automated strategies and AI agents in a risk-free environment with historical market data.
Crypto Native
Trade with crypto across platforms. Connect your wallet and execute seamlessly on Polymarket and beyond.
Advanced Charting
High visibility charting with custom indicators, drawing tools, and multi-timeframe analysis.
Multi-Platform
Unified access to Polymarket, Kalshi, Manifold, and more. One terminal for all prediction markets.
Stay Ahead with AI-Powered Custom Newsfeed
No more scrolling Twitter or Reddit. Get real-time, personalized news aggregated from 20+ sources matched with relevant markets for fast execution.
Phoenix, AZ
High ≥ 105°F
Market price
61%
Model est.
68%
Difference
+7%
NWS (US weather)
106°F
Open-Meteo
105°F
Station ID
KPHX
Distance
12.4 km away
Phoenix Sky Harbor Intl
@degen_whale sold $95,000 NO on Recession 2025
just now
@big_brain bought $320,000 YES on AI regulation
just now
@whale_watcher sold $134,738 NO on Rate hike June
just now
BTC > $100k EOY
Fed Rate Cut March
Track Whale Wallets
The best Polymarket traders don't share their positions. But their wallets are public — you just need to know where to look.
Spline tracks known whale addresses and shows you their trades in real-time. See when @GCRClassic, @Theo4All, or @frogs_anon move $100k+ into a market. Follow what smart money is actually doing.
$2.4B+
Total whale volume tracked
847
Known whale wallets
One Terminal, All MajorPrediction Markets
Seamlessly connect and trade on the world's leading platforms without switching tabs. Aggregated liquidity, unified order books, and cross-market arbitrage opportunities.
Trading with Splinegot benefits.
Trade across Kalshi, Polymarket, Manifold, and more, all in one place. Custom newsfeed, intelligent market matching, real-time insights.
Instant wallet connects.
Unified portfolio tracking across platforms
Best-price execution routing
Kalshi
Regulated US exchange for elections, economy, weather
Polymarket
Crypto-powered, global events, high-volume politics/crypto
Institutional-GradeMarket Data
Access L1, L2, and L3 data across all prediction markets. Full depth orderbooks, order flow analytics, and real-time market microstructure.
Best Bid/Ask
Real-time top of book prices and sizes
Market Depth
Full orderbook with aggregated price levels
Order Flow
Individual order tracking and fills
Ready to Trade Smarter?
Join thousands of traders using Spline to gain an edge in prediction markets. Start with our free tier and upgrade as you grow.
No credit card required. Free tier includes 1,000 API calls/month.
API Access
Build automated strategies with our comprehensive REST & WebSocket APIs
Documentation
Detailed guides, examples, and API references to get you started
Community
Join thousands of traders sharing strategies and insights
$850M+
Trading Volume
15,000+
Active Traders
99.9%
Uptime
<50ms
Latency