| What it does | API for sending handwritten letters through AI agents and assistants
| The fitness content marketplace where developers access real workout videos and exercises instead of generic 3D animations
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| Stage | Not given
| MVP
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| Founded | Not given
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| Based in | DE
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| Pricing model | Not given
| Freemium
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| Pricing | Not given
| Free API tier with full exercise data access. Premium video bundles from $200 to $500.
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| Key features | - Agent policy configuration with send limits and approval settings
- Relationship management with contact details restricted from API
- Moment tracking for birthdays and anniversaries
- Letter quote and pricing with customizable upgrades
- Real-time send tracking with multiple status states
- Address request generation with privacy protection
- Webhook event system with signature verification
- OAuth support for custom connectors like Claude
| - Free API with 900+ exercises and 1,500+ total exercises
- MIT-licensed open source exercise dataset in JSON format
- REST API with sub-50ms global response times
- TypeScript SDK with tree-shakeable imports
- Premium HD video bundles from professional creators
- Customizable overlays and branding for video content
- Filter exercises by muscle group, equipment, and level
- npm package that works offline
- Video preview functionality available
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| What makes it different | - Same API primitives used in the app itself
- Hands-on compliance with frequency limits and approval workflows
- Model Context Protocol integration for AI assistants
- Hosted MCP server with no installation required
| - Real creator video content instead of generic 3D animations
- Video bundles cost $200-$500 compared to $3,000-$10,000 for custom production
- Commercial royalty-free licensing with no per-exercise animation costs
- Free API with no credit card required for basic queries
- Multiple content angles and variations customizable to each app
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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 | 6 |
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| Referring domains (Majestic) | 0 | 1 |
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Maison Cartouche
Kinetic.place