| What it does | Data and simulation layer for prediction markets on Kalshi and Polymarket
| Free trading simulator for practicing stock, forex, and crypto trading with historical chart replay
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| Stage | Not given
| Startup
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| Founded | Not given
| 2025
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| Based in | Not given
| Not given
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| Pricing model | Freemium
| Free
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| Pricing | Free ($0/month) with 60-second delay on live data, 60 API requests/minute, 1 concurrent stream, 5 subscriptions, 20 sim runs/month; Builder ($49/month) with 10-second delay, 600 requests/minute, 5 streams, 25 subscriptions, 100 sim runs/month; Standard ($199/month) with 2-second delay, 3,000 request
| Free to use
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| Key features | - Order-book history with outcomes and rules for every market on Kalshi and Polymarket
- Live context synchronized on one clock: speech, official text and data releases
- Simulator with venue's real fees and timing for backtesting
- Full REST, WebSocket and SSE access with signed webhooks
- Python and TypeScript SDKs and CLI for programmatic access
- MCP server with phrase and market subscription tools
- Fair-value and live probability models for markets
- Signed receipts and provenance reports for evidence
- Paper trading mode on live record before switching to real exchange keys
- Timestamped facts for resolved market outcomes with speaker attribution
| - Daily and intraday historical replay for stocks, forex, and crypto
- 500+ tradable assets
- Blind historical replay with hidden future candles
- Professional technical indicators including Moving Averages, Bollinger Bands, RSI, MACD, and Volume
- Browser-based with no downloads required
- Available in 38+ languages
- Powered by TradingView charting technology
- Trade analysis and performance review
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| What makes it different | - Synchronized context on the same clock: order books, market rules, and every speech or data release that moves prices
- Speaker attribution and verdict for each phrase: whether it counts under market rules
- Live recording of order books for every open market rolling out
- No trading signals: users control all decisions and trades with their own exchange keys
| - Free with no signup, download, or credit card required
- Historical blind replay focuses on price-action reading without real-time execution
- Designed for traders of all skill levels from beginners to experienced
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 23 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 0 | 5 |
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| Citation Flow (Majestic) | 0 | 24 |
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| Referring domains (Majestic) | 0 | 116 |
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Langbot
ChartMini