AtomicServer
Headless CMS and real-time graph database for Atomic Data
1.6k stars 75 forks last commit first released MIT
Actively maintained
Last commit 25 Jul 2026.
AtomicServer is an open source headless CMS and real-time graph database built around the Atomic Data model. It provides a structured, schema-driven way to create and query data, plus a web UI for editing content and building collaborative apps.
Key Features
- Schema and ontology tooling to define custom classes, properties, and validation rules
- REST API with JSON-oriented responses and multiple serialization formats for linked data
- Real-time synchronization for clients using WebSockets
- Full-text search with fuzzy matching and operators
- Table editor with keyboard and copy/paste workflows (Airtable-like)
- Collaborative rich-text documents
- File management for uploading, downloading, and previewing attachments
- Authorization model with read/write permissions and hierarchical structures
- Event-sourced versioning and history tracking
- Optional AI integration via MCP, with support for using hosted models or local model backends
Use Cases
- Building schema-driven internal tools and business apps with real-time UIs
- Headless CMS for structured content with powerful search and custom data models
- Collaborative knowledge bases and document-centric workflows with permissions
Limitations and Considerations
- Project status is marked as alpha; breaking changes may occur before a 1.0 release
AtomicServer is a strong fit when you need a flexible data model, fast querying, and real-time collaboration in a self-hosted stack. Its SDKs and built-in editors help bridge backend data modeling with modern web app front ends.
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