GreyCat
The facts below are what the maker publishes about GreyCat, checked and dated. Our editors have not written about it yet.
Plans and prices
From GreyCat's own pricing page, checked 28 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Community | Free | Free forever for individuals and teams. · Self-hosted · Unified time-series, graph, geospatial and vector store · MCP server and OpenAPI · On-device embeddings · REST and JSON-RPC API · RBAC and token authentication |
| Pro | Priced on request | For teams shipping to production. · Pro libraries for full-text and hybrid search, AI and algebra ML · Enterprise connectors · OIDC single sign-on · Monitoring and profiler · Live and delta backup · Email and priority support |
| Enterprise | Priced on request | For regulated and large-scale deployments. · Uptime SLAs · EU-sovereign, on-prem, air-gapped or BYO-cloud deployment · Dedicated support and onboarding · Security review · Custom terms |
The facts
Each one read from GreyCat's own pages, with the date it was checked.
What it does
- Access control
- Community includes role-based access control and token authentication.checked 28 Sep 2026
- Agent support
- A built-in MCP server and OpenAPI support make functions available to AI agents.checked 28 Sep 2026
- API protocols
- GreyCat provides REST, JSON-RPC, OpenAPI and SDK code generation.checked 28 Sep 2026
- Binary size
- The standalone binary is approximately 4.6 MB.checked 28 Sep 2026
- Database model
- graphchecked 23 Sep 2026
- Deployment options
- bothchecked 23 Sep 2026
- Enterprise connectors
- Connectors include PostgreSQL, Kafka, OPC-UA, MQTT, S3, SFTP, OpenStreetMap and IFC.checked 28 Sep 2026
- Enterprise deployment
- Enterprise supports EU-sovereign, on-premises, air-gapped and BYO-cloud deployments.checked 28 Sep 2026
- Enterprise identity
- Pro adds OIDC single sign-on.checked 28 Sep 2026
- Operations tools
- Pro includes monitoring, profiling, live backup and delta backup.checked 28 Sep 2026
- Roadmap items
- Many-worlds branching and on-device LLM text generation are listed as planned.checked 28 Sep 2026
- Search features
- Pro adds full-text and hybrid search, AI and algebra machine learning libraries.checked 28 Sep 2026
- Self-hosting
- GreyCat runs as a self-contained binary on the customer's own infrastructure.checked 28 Sep 2026
- SQL support
- Nochecked 23 Sep 2026
- Support levels
- Community support is via GitHub and Discord; Pro adds email and priority support.checked 28 Sep 2026
- Unified database
- Combines time-series, graph, geospatial, vector and full-text search in one engine.checked 28 Sep 2026
- Vector search
- Yeschecked 23 Sep 2026
The company
- Company location
- GreyCat is built by DataThings in Luxembourg, European Union.checked 28 Sep 2026
- Headquarters
- Luxembourgchecked 28 Sep 2026
Money
- Free edition
- The Community edition is free forever with no time limit or usage clock.checked 28 Sep 2026
- Free plan
- Yeschecked 23 Sep 2026
- Free plan limits
- The page does not state a storage, worker, cache or usage limit for Community.checked 28 Sep 2026
Where it runs
- On-device AI
- AI runs on-device so prompts and documents stay within the deployment.checked 28 Sep 2026
Alternatives to GreyCat
- 1
SQLite
Free planOpen sourceAndroidiOSWebAPI9.3Free plan - 2
Firestore
Free planAndroidiOSWebAPI8.8$0.03 usage-based - 3
Chroma
Free planOpen sourceAndroidiOSWebAPI8.8From $250 a month - 4
MySQL
Free planAPILinuxmacOSSelf-hosted8.7Free plan - 5
SingleStore Helios
Free planWebAPILinuxmacOS8.7Free plan - 6
TiDB Cloud
Free planOpen sourceWebAPILinuxSelf-hosted8.7Free plan