Keel vs Langbot
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Keel compared with Langbot
| Detail | K
Keel | 
Langbot |
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| What it does | Strategy OS for AI-assisted systematic trading on Hyperliquid
| Data and simulation layer for prediction markets on Kalshi and Polymarket
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| Stage | Not given
| Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| 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 | - Typed strategy language with validation
- Portfolio backtesting in seconds
- Multi-asset strategy building with 218 components
- Live trading on Hyperliquid with user-controlled account
- Same code for backtest and live execution
- Real-time position and trade visibility
- AI-assisted strategy composition and validation
- Strategy versioning and component pinning
| - 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
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| What makes it different | - Prevents backtesting errors through typed strategy language
- Deterministic execution: backtest and live trading produce identical results
- Non-custodial: strategies run on user's own account
- AI writes strategies but not executes trades
- Validates time alignment and prevents common timing mistakes
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 45 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 4 | 0 |
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| Citation Flow (Majestic) | 33 | 0 |
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| Referring domains (Majestic) | 80 | 0 |
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4 details filled in for both companies.
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