Silvanexum MCP Server: Install & Setup

Install Silvanexum in Claude Code

npm

Claude Code

claude mcp add silvanexum -e SILVANEXUM_API_KEY=... -- npx -y @silvanexum/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "silvanexum": {
      "command": "npx",
      "args": [
        "-y",
        "@silvanexum/mcp"
      ],
      "env": {
        "SILVANEXUM_API_KEY": "..."
      }
    }
  }
}

PyPI (uv)

Claude Code

claude mcp add silvanexum -e SILVANEXUM_API_KEY=... -- uvx silvanexum-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "silvanexum": {
      "command": "uvx",
      "args": [
        "silvanexum-mcp"
      ],
      "env": {
        "SILVANEXUM_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Silvanexum MCP server do?

Spend control for AI agents - cost attribution, budget caps, and signed runs as MCP tools.

Is the Silvanexum MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Silvanexum run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Silvanexum to Claude Code?

Run: claude mcp add silvanexum -e SILVANEXUM_API_KEY=... -- npx -y @silvanexum/mcp

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