How hot will my Phoenix project be in 2090?

The EPWForge MCP server lets Claude (and Cursor, and any MCP-aware client) generate, analyze, and chart simulation-ready weather files from natural-language prompts — TMY, AMY, CMIP6 future morphing, UHI, extreme events, wildfire smoke, and EnergyPlus DesignDay IDF blocks, all from the engine behind epwforge.com.

Four tools. Three work without authentication. Anyone can search stations, analyze any EPW, or chart a synthesized future-climate scenario — no signup, no credits.

Install

Try it free — no API key

Add this to your Claude Desktop / Claude Code / Cursor MCP config. Three of the four tools (find_station, analyze_weather, chart_weather) work immediately — no credentials needed.

{
  "mcpServers": {
    "epwforge": {
      "command": "uvx",
      "args": ["epwforge-mcp@0.4.0"]
    }
  }
}

Add an API key — unlock generation

To enable generate_weather_file (which delivers actual EPW/DDY files), set EPWFORGE_API_KEY. Free signup includes 5 welcome credits. Generate one →

{
  "mcpServers": {
    "epwforge": {
      "command": "uvx",
      "args": ["epwforge-mcp@0.4.0"],
      "env": {
        "EPWFORGE_API_KEY": "sk_live_..."
      }
    }
  }
}

One-shot installer

Auto-detects your client config and wires everything up:

uvx epwforge-mcp install --api-key sk_live_...

Hosted (for claude.ai web users)

Browser-based Claude can't run local MCP processes. Add this URL as a Custom MCP Server instead — same 4 tools, same anon access:

https://epwforge.com/api/mcp

The four tools

Resources browsable in claude.ai's connector UI

Reference docs the agent can read at any time without a tool call. Catalog of valid params, presets, and how to format results — minimizes "what values are valid for X" reasoning loops.

Prompts pre-built workflow templates

One-click workflows in claude.ai's prompt picker. Each runs a coordinated multi-tool sequence — useful for "I know what I want to do but not the exact tool call ordering."

Try these prompts

Paste any of these into your client after install. The first three work without an API key.