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Variel MCP Server

ai.variel/mcp-server · v0.1.0

Generate your brand in-agent, then keep tokens, components, and copy on-brand over MCP.

Website Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add mcp-server -e BRAND_API_KEY=<BRAND_API_KEY> -e VARIEL_API_URL=<VARIEL_API_URL> -e ANTHROPIC_API_KEY=<ANTHROPIC_API_KEY> -- npx -y @variel/[email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@variel/[email protected]"
      ],
      "env": {
        "BRAND_API_KEY": "<BRAND_API_KEY>",
        "VARIEL_API_URL": "<VARIEL_API_URL>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@variel/[email protected]"
      ],
      "env": {
        "BRAND_API_KEY": "<BRAND_API_KEY>",
        "VARIEL_API_URL": "<VARIEL_API_URL>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@variel/[email protected]"
      ],
      "env": {
        "BRAND_API_KEY": "<BRAND_API_KEY>",
        "VARIEL_API_URL": "<VARIEL_API_URL>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
BRAND_API_KEY
Required, secret		Your Variel project API key (bsk_…) to connect an existing brand. Get it from your Variel dashboard, or run `variel-mcp login` to provision one via browser sign-in (no copy-paste). You can also start keyless and generate a brand with generate_brand_kickoff.
VARIEL_API_URL
Optional		Override the Variel API base URL. Defaults to https://variel.ai. Optional — for self-hosted or staging.
ANTHROPIC_API_KEY
Optional, secret		Anthropic API key. Required only for grade_visual_quality, generate_component, and Tier-2 validate_copy. Optional for all other tools.

Details

Package@variel/[email protected] (NPM, stdio)
First published1 Jul 2026
Last updated1 Jul 2026
Registry nameai.variel/mcp-server

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