Capacities
Free tierA studio for your mind — turn ideas into connected objects, not files buried in folders
Free tier available·All audiences·API available
Key strengths
Object-based knowledge graph (link anything to anything)Automatic related content surfacing without manual linkingDaily notes as a frictionless inboxNo folder hierarchy or complex configuration neededGDPR-compliant EU hosting with full data export
Free tier + paid plans · from $9.99 USD/mo
Germany
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Recent changes
- Plans updated: Free Basic plan forever; Pro at $9.99/month (includes AI assistant, task management, smart queries, calendar integration, public API, and more); Believer from $12.49/month (beta access to major new features + everything in Pro); optional Plus AI Power-Up add-on at $8.33/month billed annually.
- API: now available
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Docs & Integration — Developer Reference
API
A public API is included in the Pro plan ($9.99/month) and above. This enables developers to build custom integrations, automate data ingestion, and query or write objects in the Capacities knowledge graph programmatically.
Native Integrations
The following integrations are available out of the box:
| Integration | Use case |
|---|---|
| Capture messages/notes into Capacities | |
| Telegram | Capture messages/notes into Capacities |
| Save tweets as objects | |
| Readwise | Sync highlights from articles and books |
| Kindle | Import book highlights |
Hosting & Compliance
- Hosting: Cloud-only; self-hosting is not supported.
- Data residency: EU-based servers (Germany HQ).
- Compliance: GDPR-compliant.
- Data export: Full export available — no proprietary lock-in.
Plans Relevant to Developers
- Pro ($9.99/month): Unlocks public API access, AI assistant, smart queries, task management, and calendar integration.
- Believer (from $12.49/month): Everything in Pro plus beta access to major new features.
- Plus AI Power-Up: Optional add-on at $8.33/month (billed annually) for extended AI capabilities.
Alternatives
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