Langbot vs PropCopy
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Langbot compared with PropCopy
| Detail | 
Langbot | 
PropCopy |
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| What it does | Data and simulation layer for prediction markets on Kalshi and Polymarket
| Trade copier for prop firms and funded traders across Tradovate, NinjaTrader 8, and forex platforms
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Paid
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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
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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
| - Sub-500ms trade execution
- Cloud-based Tradovate web copier for prop firms
- NinjaTrader 8 add-on for any NT8-connected broker
- Bracket order support with take-profit and stop-loss
- Real-time trade monitoring with detailed logs
- Multiple position sizing methods
- Daily loss limits and automatic stop features
- Trade journal with performance analytics
- TradingView webhook integration
- Mobile app with iOS and Android support
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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
| - Works with any prop firm platform using Tradovate plus multiple forex and futures brokers on one subscription
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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 | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 0 | 0 |
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| Referring domains (Majestic) | 0 | 1 |
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4 details filled in for both companies.
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