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jevmem

jevmem is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Automatic project memory for Claude Code. It has 122 GitHub stars, is released under the MIT license and runs locally with npx -y jevmem.

github.com/Avinash-jetwani/jevmem (opens in a new tab)

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Install jevmem

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "jevmem": {
      "command": "npx",
      "args": [
        "-y",
        "jevmem"
      ],
      "env": {
        "TYPESAFE_API_KEY": "your-value"
      }
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --env TYPESAFE_API_KEY=your-value --transport stdio jevmem -- npx -y jevmem

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "jevmem": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "jevmem"
      ],
      "env": {
        "TYPESAFE_API_KEY": "your-value"
      }
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "typesafe_api_key",
      "description": "TYPESAFE_API_KEY",
      "password": true
    }
  ],
  "servers": {
    "jevmem": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "jevmem"
      ],
      "env": {
        "TYPESAFE_API_KEY": "${input:typesafe_api_key}"
      }
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

Environment variables

Variables the server reads at startup.

NameRequiredDescription
TYPESAFE_API_KEYsecretNoTypeSafe API key for Jev, which addmemory, searchmemory and audit_memory use. If unset, the server reads it from /.jevmem/.env or ~/.jevmem/env.
JEVMEM_ROOTNoProject root, for clients that start the server without a project working directory (Claude Desktop). One server entry serves one project.
TYPESAFE_BASE_URLNoSend Jev requests through a proxy or gateway instead of api.typesafe.ai.
JEVMEM_CACHENo0 turns off the answer cache in .jevmem/.

About jevmem

Say it once. jevmem saves the decisions, rules and failed approaches from your Claude Code chats to JEVMEM.md in your repo, and brings the relevant ones back next session. Before Claude runs a command or edits a file, it checks the call against your saved rules. It is open source (MIT), built on TypeSafe AI's Jev, in Anthropic's Claude plugin directory and on the MCP Registry, and works with Cursor and Codex over MCP.

  • claude-code
  • codex
  • cursor
  • developer-tools
  • jev
  • mcp
  • typesafe
  • ai-memory
  • agent-memory
  • claude-code-hooks

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FAQ

jevmem FAQ

Still curious? Email info@appsgit.com.

What is jevmem?

jevmem is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Automatic project memory for Claude Code. It has 122 GitHub stars, is released under the MIT license and runs locally with npx -y jevmem. The source code is at github.com/Avinash-jetwani/jevmem.

How do I install the jevmem MCP server?

Add the command npx -y jevmem to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is jevmem free?

The server is open source under the MIT license, so running it is free. It needs credentials (TYPESAFE_API_KEY) for the service it connects to, which may require a paid account.

Is jevmem actively maintained?

The most recent commit was on Oct 6, 2026. The latest release is v0.6.6, published Oct 6, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.