Siren MCP Server: Install & Setup

Install Siren in Claude Code

Claude Code

claude mcp add --transport http hexahedral-inc-siren https://mcp.mysiren.ai/mcp

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

{
  "mcpServers": {
    "hexahedral-inc-siren": {
      "url": "https://mcp.mysiren.ai/mcp"
    }
  }
}

Frequently asked questions

What does the Siren MCP server do?

Deterministic visual marketing engine. Your agent plans, renders, and posts on-brand campaigns.

Is the Siren 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 Siren run locally or remotely?

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

How do I add Siren to Claude Code?

Run: claude mcp add --transport http hexahedral-inc-siren https://mcp.mysiren.ai/mcp

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