Persistent memory MCP server for Claude Code, Cursor, and GitHub Copilot. Long-term memory via Model Context Protocol with semantic search, Git sync, and team collaboration.

ContextForge MCP — Persistent Memory for Claude, Cursor & Copilot

npm versionLicense: MITNode.js

Give Claude Code, Cursor, and GitHub Copilot persistent memory across sessions via the Model Context Protocol (MCP). Stop re-explaining your project every time.

ContextForge MCP is an open-source MCP server that connects your AI coding assistants to long-term, searchable memory. Decisions, architecture notes, debugging context, and project knowledge stay available across every session — across every tool that supports MCP.

  • 🧠 Persistent memory — your AI remembers everything across sessions, days, and weeks
  • 🔍 Semantic search — find knowledge by meaning, not keywords
  • 🔗 One memory, every tool — Claude Code, Cursor, Copilot, Claude Desktop, Windsurf
  • 🐙 Git integration — sync commits and PRs automatically
  • Task tracking — issues, assignments, and project status
  • 👥 Team collaboration — share projects and memory with your team
  • 🆓 Free tier — get started without a credit card

Quick Start

1. Install

npm install -g contextforge-mcp

2. Get your API key

  1. Go to contextforge.dev
  2. Sign up (free tier available)
  3. Settings → API Keys → Generate API Key
  4. Copy your key (starts with cf_)

3. Connect to your AI tool

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "contextforge": {
      "command": "contextforge-mcp",
      "env": {
        "CONTEXTFORGE_API_KEY": "your-api-key-here"
      }
    }
  }
}

Restart Claude Desktop.

Claude Code (CLI)
claude mcp add contextforge \
  -e CONTEXTFORGE_API_KEY=your-api-key-here \
  -- contextforge-mcp

Restart Claude Code and run /mcp to verify it's connected.

Cursor

Add to your Cursor MCP settings:

{
  "mcpServers": {
    "contextforge": {
      "command": "npx",
      "args": ["contextforge-mcp"],
      "env": {
        "CONTEXTFORGE_API_KEY": "your-api-key-here"
      }
    }
  }
}
GitHub Copilot (VS Code)

Add to your Copilot MCP config:

{
  "servers": {
    "contextforge": {
      "command": "npx",
      "args": ["contextforge-mcp"],
      "env": {
        "CONTEXTFORGE_API_KEY": "your-api-key-here"
      }
    }
  }
}

Available Tools

ContextForge provides tools for Knowledge Management, GitHub Integration, Issue Tracking, and Collaboration.

Knowledge Management

Tool Description
memory_ingest Save knowledge to memory
memory_query Search your knowledge semantically
memory_list_items List all stored items
memory_delete Remove specific items
memory_ingest_batch Save multiple items at once
memory_delete_batch Delete items by filter

Spaces & Projects

Tool Description
memory_list_spaces List your spaces
memory_create_space Create a new space
memory_delete_space Delete a space
memory_move_space Move space to project
memory_list_projects List your projects
memory_create_project Create a new project
memory_delete_project Delete a project
memory_link_project Link directory to project
memory_unlink_project Unlink directory
memory_current_project Show linked project

GitHub Integration

Tool Description
memory_git_connect Connect a GitHub repo
memory_git_list List connected repos
memory_git_activate Activate/deactivate webhook
memory_git_sync Import existing history
memory_git_commits List synced commits
memory_git_prs List synced PRs
memory_git_disconnect Disconnect a repo

Issue Tracking

Tool Description
issues_list List your issues
issues_create Create a new issue
issues_start Mark as in progress
issues_resolve Mark as resolved
issues_resolve_by_name Resolve by title
issues_assign Assign to collaborator
issues_what_next Get recommendation

Collaboration

Tool Description
project_share Share project by email
collaborators_list List collaborators

Snapshots & Export

Tool Description
memory_snapshot_create Create a backup
memory_snapshot_list List all snapshots
memory_snapshot_restore Restore from backup
memory_snapshot_delete Delete a snapshot
memory_export Export to JSON/MD/CSV
memory_import Import from file

Utility

Tool Description
memory_stats View usage statistics
memory_relate Link two items
memory_help Show help

Natural Language Examples

You don't need to memorize commands — just talk naturally to your AI:

# Knowledge
"Save this: we use PostgreSQL for the main database"
"What database do we use?"
"List my spaces"

# GitHub
"Connect my repo github.com/myuser/myproject"
"What commits did I make today?"
"Show PRs merged this week"

# Issues
"Create an issue: Update the login page design"
"What's pending?"
"What should I work on next?"
"Mark the login issue as done"

Environment Variables

Variable Required Description
CONTEXTFORGE_API_KEY Yes Your API key from the dashboard
CONTEXTFORGE_API_URL No API endpoint (defaults to production)
CONTEXTFORGE_DEFAULT_SPACE No Default space for operations

How it works

ContextForge MCP is a thin client that translates Model Context Protocol tool calls into authenticated HTTP requests against the ContextForge API. Your knowledge is stored, indexed (semantic embeddings), and retrieved on the server side — the MCP client itself is stateless.

This means:

  • No infra to manage — no local databases, no embeddings to run, no vector stores to maintain
  • Works everywhere your AI works — same memory across Claude Code, Cursor, Copilot, etc.
  • Team collaboration — shared projects sync in real time

Dashboard

Manage your memory visually at contextforge.dev:

  • View and organize your knowledge
  • Search and filter memories
  • Manage API keys and billing
  • Track issues and collaborate
  • Export and backup data

Development

# Clone and install
git clone https://github.com/alfredoizdev/contextforge-mcp.git
cd contextforge-mcp
npm install

# Build
npm run build

# Run tests
npm test

# Watch mode
npm run dev

Contributing

Issues and pull requests are welcome at github.com/alfredoizdev/contextforge-mcp.

Support

License

MIT © Alfredo Izquierdo

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