solar-mcp

MCP server for space weather and HF propagation conditions — live solar flux, Kp index, DSCOVR solar wind, X-ray flux, alerts, 27-day forecast, and band-by-band outlook through any MCP-compatible AI assistant.

Part of the qso-graph project. No authentication required — all data from NOAA SWPC public endpoints.

Version drift? If the PyPI and MCP Registry badges show different versions, the Registry is catching up to the latest PyPI release on this server's next tag. Forward-only sync — we don't tag content-free releases just to sync. See qso-graph/.github TEMPLATES.md for the sync mechanism.

Install

Terminal

pip install solar-mcp

Tools

Tool	Description
`solar_conditions`	Current SFI, Kp, and NOAA R/S/G space weather scales
`solar_forecast`	27-day SFI and Kp forecast from NOAA
`solar_alerts`	Active space weather alerts and warnings
`solar_wind`	Real-time DSCOVR L1 solar wind (Bz, speed, density)
`solar_xray`	GOES X-ray flux and solar flare classification
`solar_band_outlook`	HF band-by-band propagation assessment (160m-6m)
`get_version_info`	Service version + upstream spec version (fleet identity attestation)

Quick Start

No credentials needed — just install and configure your MCP client.

Configure your MCP client

Claude Desktop

Add to claude_desktop_config.json (~/Library/Application Support/Claude/ on macOS, %APPDATA%\Claude\ on Windows):

config.json

{
  "mcpServers": {
    "solar": {
      "command": "solar-mcp"
    }
  }
}

Claude Code

Add to .claude/settings.json:

config.json

{
  "mcpServers": {
    "solar": {
      "command": "solar-mcp"
    }
  }
}

ChatGPT Desktop

config.json

{
  "mcpServers": {
    "solar": {
      "command": "solar-mcp"
    }
  }
}

Cursor

Add to .cursor/mcp.json (project-level) or ~/.cursor/mcp.json (global):

config.json

{
  "mcpServers": {
    "solar": {
      "command": "solar-mcp"
    }
  }
}

VS Code / GitHub Copilot

Add to .vscode/mcp.json in your workspace:

config.json

{
  "servers": {
    "solar": {
      "command": "solar-mcp"
    }
  }
}

Gemini CLI

Add to ~/.gemini/settings.json (global) or .gemini/settings.json (project):

config.json

{
  "mcpServers": {
    "solar": {
      "command": "solar-mcp"
    }
  }
}

Ask questions

"What are the current solar conditions?"

"Is the solar wind causing any geomagnetic disturbance?"

"What's the 27-day solar forecast look like?"

"Are any bands open right now on HF?"

"Are there any active space weather alerts?"

"What class solar flare is happening?"

Testing Without Network

bash

SOLAR_MCP_MOCK=1 solar-mcp

MCP Inspector

bash

solar-mcp --transport streamable-http --port 8008

Development

bash

git clone https://github.com/qso-graph/solar-mcp.git
cd solar-mcp
pip install -e .

License

GPL-3.0-or-later