Langbot vs Card AI
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 Card AI
| Detail | 
Langbot | 
Card AI |
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| What it does | Data and simulation layer for prediction markets on Kalshi and Polymarket
| Scan cards, know their value
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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
| 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
| Not given
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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
| - AI card recognition from photos
- Bulk scanning for multiple cards
- Price history and market trends
- Raw and graded card price comparison
- Collection portfolio value tracking
- Multi-game support including Pokemon, MTG, Yu-Gi-Oh and sports cards
- Wishlist and card-set browsing
- Search by card name, set or card number
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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
| - Confirms exact card printing before pricing to ensure accuracy
- Separates raw card and graded card prices in different markets
- Tracks collection value over time with portfolio management
- Unified collection across multiple trading card games
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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 | 0 |
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4 details filled in for both companies.
More alternatives to Langbot More alternatives to Card AI