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Semble

Semble is an MCP server that adds search and knowledge tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Fast and Accurate Code Search for Agents. It has 6,185 GitHub stars, is released under the MIT license and runs locally with uvx semble.

github.com/MinishLab/semble (opens in a new tab)

View on GitHub (opens in a new tab)

Install Semble

Generated from the server's published package. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "semble": {
      "command": "uvx",
      "args": [
        "semble"
      ]
    }
  }
}

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

Claude Code

claude mcp add --transport stdio semble -- uvx semble

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "semble": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "semble"
      ]
    }
  }
}

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

VS Code

.vscode/mcp.json
{
  "servers": {
    "semble": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "semble"
      ]
    }
  }
}

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 Semble

Fast and Accurate Code Search for Agents Uses ~99% fewer tokens than grep+read Semble is a code search library built for agents. It returns the exact code snippets they need instantly, using ~99% fewer tokens than grep+read. Indexing and searching a full codebase end-to-end takes under a second for most repos, matching the retrieval quality of a code-specialized transformer while indexing ~380x faster and querying ~17x faster (see benchmarks).

  • agents
  • code-search
  • embeddings
  • mcp
  • mcp-server
  • model-context-protocol
  • retrieval

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FAQ

Semble FAQ

Still curious? Email info@appsgit.com.

What is Semble?

Semble is an MCP server that adds search and knowledge tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Fast and Accurate Code Search for Agents. It has 6,185 GitHub stars, is released under the MIT license and runs locally with uvx semble. The source code is at github.com/MinishLab/semble.

How do I install the Semble MCP server?

Add the command uvx semble 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 Semble free?

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

Is Semble actively maintained?

The most recent commit was on Oct 6, 2026. The latest release is v0.6.2, published Oct 5, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.