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ThoughtDAG

ThoughtDAG is an MCP server that searches local AI conversations by file or phrase and recall source turns. It has 699 GitHub stars, is released under the MIT license and runs locally with npx -y thoughtdag. It works with Claude Desktop, Claude Code, Cursor and VS Code.

github.com/chenxiachan/thoughtdag (opens in a new tab)

Data as of from the GitHub API and the official MCP registry; description from the project's repository. Report an error

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Install ThoughtDAG

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

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "thoughtdag": {
      "command": "npx",
      "args": [
        "-y",
        "thoughtdag"
      ]
    }
  }
}

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

Claude Code

claude mcp add --transport stdio thoughtdag -- npx -y thoughtdag

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "thoughtdag": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "thoughtdag"
      ]
    }
  }
}

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

VS Code

.vscode/mcp.json
{
  "servers": {
    "thoughtdag": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "thoughtdag"
      ]
    }
  }
}

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).

About ThoughtDAG

Find the conversations that shaped a file. Indexes the agent sessions already on your machine (Claude Code, Codex, DeepSeek Harness, Pi) by the files each turn read, wrote or edited, and lists those turns: when, what changed, what was asked, what the answer said about the file. Every hit links back to the conversation.

  • agentic-search
  • ai-tools
  • context-engineering
  • dag
  • infinite-canvas
  • knowledge-graph
  • llm
  • mcp
  • react-flow
  • research-tool

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FAQ

ThoughtDAG FAQ

Still curious? Email info@appsgit.com.

How do I install the ThoughtDAG MCP server?

Add the command npx -y thoughtdag 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 ThoughtDAG free?

The server is open source under the MIT license, so running it is free. It does not declare any required API key.

Is ThoughtDAG actively maintained?

The most recent commit was on Oct 25, 2026. The latest release is v0.5.26, published Oct 25, 2026. appsgit only lists MCP servers with a commit in the last six months.