Context Sync
An open-source memory layer that provides persistent project context and architectural history for AI development tools across multiple platforms and sessions. It enables AI assistants to maintain a shared understanding of codebases while integrating
What is Context Sync?
Context Sync is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to open-source memory layer that provides persistent project context and architectural history for ai development tools across multiple platforms and sessions. it enables ai assistants to maintain a shar...
An open-source memory layer that provides persistent project context and architectural history for AI development tools across multiple platforms and sessions. It enables AI assistants to maintain a shared understanding of codebases while integrating
This server falls under the Knowledge & Memory category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- An open-source memory layer that provides persistent project
Use Cases
Maintainer
Works with
Installation
NPM
npx -y @context-sync/serverManual Installation
npx -y @context-sync/serverConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Context Sync
Context Sync is an open-source MCP server that provides a persistent, cross-session memory layer for AI development tools, storing project context and architectural decisions in a local SQLite database at ~/.context-sync/data.db. It exposes tools for setting project context, saving and recalling memory, searching the codebase, exploring directory structure, running Git operations, and optionally reading Notion pages — enabling AI assistants to maintain a shared understanding of a codebase across multiple sessions and even across different AI tools. Teams and solo developers who switch between Claude, Cursor, and other MCP-compatible editors benefit most from the shared context it provides.
Prerequisites
- Node.js 18 or later with npm or npx
- An MCP-compatible client: Claude Desktop, Claude Code, Cursor, or similar
- Optionally, a Notion integration token if you want to use the Notion read-only tool
- Write access to the ~/.context-sync/ directory for the database and config files
Install the server globally
Install @context-sync/server globally with npm. The post-install script runs auto-configuration and patches your AI tool's settings automatically.
npm install -g @context-sync/serverRestart your AI tool
After global installation, the auto-configuration patches your AI tool's MCP settings. Restart Claude Desktop or Claude Code to pick up the new server registration.
Optionally configure Notion integration
If you want to connect Context Sync to a Notion workspace for read-only knowledge retrieval, run the setup wizard and provide your Notion integration token.
npx context-sync-setupSet the project context at the start of each session
Begin every new session by calling set_project with the absolute path to your project. This initializes project-specific memory and context.
Save and recall context throughout your work
Use the remember tool to persist important decisions or findings. At the start of future sessions, call recall to restore what was saved. Use the search and structure tools to navigate the codebase.
Context Sync Examples
Client configuration
If auto-configuration did not run (e.g., local install), add this block to claude_desktop_config.json manually. Use the global npx command to launch the server.
{
"mcpServers": {
"context-sync": {
"command": "npx",
"args": ["-y", "@context-sync/server"],
"env": {
"CONTEXT_SYNC_DB_PATH": "/Users/yourname/.context-sync/data.db"
}
}
}
}Prompts to try
A typical session workflow using Context Sync tools, from initialization through recall and exploration.
- "Set the project to /Users/me/projects/my-app and recall what we discussed last time."
- "Remember that we decided to use Postgres instead of MySQL for the user table."
- "Search the codebase for all uses of the AuthService class."
- "Show me the directory structure of this project to depth 2."
- "What is the git blame for src/auth/login.ts around line 42?"Troubleshooting Context Sync
Auto-configuration did not run and the server is not registered
This happens with local (non-global) installs. Follow the manual config steps in docs/CONFIG.md in the repository, or add the npx command block shown above to claude_desktop_config.json manually.
The recall tool returns no results at the start of a new session
Ensure you called set_project with the same absolute project path used in previous sessions. Context Sync scopes memory per project path — a different path or trailing slash will start a blank context.
Notion search returns no results or authentication errors
Run 'npx context-sync-setup' again and re-enter your Notion integration token. Ensure the integration is added to the specific Notion pages you want to access in the Notion settings panel.
Frequently Asked Questions about Context Sync
What is Context Sync?
Context Sync is a Model Context Protocol (MCP) server that open-source memory layer that provides persistent project context and architectural history for ai development tools across multiple platforms and sessions. it enables ai assistants to maintain a shared understanding of codebases while integrating It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Context Sync?
Install via npm with the command: npx -y @context-sync/server. Then add the server configuration to your AI client's JSON config file (e.g., claude_desktop_config.json or .cursor/mcp.json).
Which AI clients work with Context Sync?
Context Sync works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Context Sync free to use?
Yes, Context Sync is open source and available under the MIT License license. You can use it freely in both personal and commercial projects.
Context Sync Alternatives — Similar Knowledge & Memory Servers
Looking for alternatives to Context Sync? Here are other popular knowledge & memory servers you can use with Claude, Cursor, and VS Code.
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Everos
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Browse More Knowledge & Memory MCP Servers
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Set Up Context Sync in Your Editor
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Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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