Syl Guardian MCP Server: Install & Setup

Install Syl Guardian in Claude Code

Claude Code

claude mcp add --transport http syl-guardian https://guardian.sylai.io/mcp

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

{
  "mcpServers": {
    "syl-guardian": {
      "url": "https://guardian.sylai.io/mcp"
    }
  }
}

Frequently asked questions

What does the Syl Guardian MCP server do?

Causal check on AI agent claims, from ad-spend/ROAS lift to any decision: pass, caution or hold.

Is the Syl Guardian 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 Syl Guardian run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Syl Guardian to Claude Code?

Run: claude mcp add --transport http syl-guardian https://guardian.sylai.io/mcp

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