Siren MCP Server: Install & Setup

Install Siren in Claude Code

Claude Code

claude mcp add siren -- npx -y siren-mcp

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

{
  "mcpServers": {
    "siren": {
      "command": "npx",
      "args": [
        "-y",
        "siren-mcp"
      ]
    }
  }
}

MCP server for Siren diagramming — teach AI models to create beautiful diagrams with Siren syntax

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

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

Run: claude mcp add siren -- npx -y siren-mcp

DennisPrediger/SLAC-MCP

MCP server exposing SLAC (Simple Logic & Arithmetic Compiler) as tools for LLM agents

mrkeyoor/should-i-use

Honest library picks for coding agents in 25-360 tokens. Tells your agent what NOT to install.

mikeslone/snowsure-web

Live ski snow, multi-model forecasts, powder rankings & a grounded Answer Engine for 500+ resorts.

codyz123/schelling-protocol

Universal coordination protocol for AI agents. Discovery, matching, and negotiation.

bierlingm/spikes

UI feedback for AI-assisted building. Click elements, rate them, agents triage via MCP.

HMAKT99/ScBee

Score repos for launch and agent readiness, find verified agents, read collaborations. Read-only.