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MCP Bridge

MCP Bridge is an MCP server that exposes silverbullet-ai tools from a SilverBullet space to MCP clients. It has 107 GitHub stars, is released under the AGPL-3.0 license and runs locally with npx -y silverbullet-ai-mcp. It works with Claude Desktop, Claude Code, Cursor and VS Code and needs an API key.

github.com/justyns/silverbullet-ai (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 MCP Bridge

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

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "silverbullet-ai-mcp"
      ],
      "env": {
        "SB_URL": "your-value",
        "SB_AUTH_TOKEN": "your-value"
      }
    }
  }
}

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

Claude Code

claude mcp add --env SB_URL=your-value --env SB_AUTH_TOKEN=your-value --transport stdio mcp-bridge -- npx -y silverbullet-ai-mcp

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "mcp-bridge": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "silverbullet-ai-mcp"
      ],
      "env": {
        "SB_URL": "your-value",
        "SB_AUTH_TOKEN": "your-value"
      }
    }
  }
}

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

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "sb_auth_token",
      "description": "SB_AUTH_TOKEN",
      "password": true
    }
  ],
  "servers": {
    "mcp-bridge": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "silverbullet-ai-mcp"
      ],
      "env": {
        "SB_URL": "your-value",
        "SB_AUTH_TOKEN": "${input:sb_auth_token}"
      }
    }
  }
}

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
SB_URLYesBase URL of your SilverBullet server, or 'desktop' for the SilverBullet+ desktop app
SB_AUTH_TOKENsecretNoThe server's SBAUTHTOKEN, if it runs with token auth
SB_SPACE_IDNoIn desktop mode, which space to connect to

About MCP Bridge

MCP server that exposes the silverbullet-ai tools in a SilverBullet space to MCP clients like Claude Code, Claude Desktop and Cursor.

  • llm
  • silverbullet
  • silverbullet-plug
  • ai

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FAQ

MCP Bridge FAQ

Still curious? Email info@appsgit.com.

How do I install the MCP Bridge MCP server?

Add the command npx -y silverbullet-ai-mcp 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 MCP Bridge free?

The server is open source under the AGPL-3.0 license, so running it is free. It needs credentials (SB_AUTH_TOKEN) for the service it connects to, which may require a paid account.

Is MCP Bridge actively maintained?

The most recent commit was on Oct 6, 2026. The latest release is 0.9.3, published Sep 24, 2026. appsgit only lists MCP servers with a commit in the last six months.