Summary
Pulls live space weather data from NOAA SWPC public endpoints with no authentication required. Exposes seven tools covering solar flux index, Kp index, DSCOVR solar wind measurements, GOES X-ray flux, active alerts, 27-day forecasts, and HF band propagation outlooks from 160m to 6m. Built for the qso-graph project, so it's aimed at ham radio operators checking propagation conditions, but anyone tracking geomagnetic storms or solar activity can use it. Ships with mock mode for offline testing and supports MCP Inspector. Install from PyPI, add one JSON block to your MCP client config, and start asking about current solar conditions or whether bands are open.
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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
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):
{
"mcpServers": {
"solar": {
"command": "solar-mcp"
}
}
}
Claude Code
Add to .claude/settings.json:
{
"mcpServers": {
"solar": {
"command": "solar-mcp"
}
}
}
ChatGPT Desktop
{
"mcpServers": {
"solar": {
"command": "solar-mcp"
}
}
}
Cursor
Add to .cursor/mcp.json (project-level) or ~/.cursor/mcp.json (global):
{
"mcpServers": {
"solar": {
"command": "solar-mcp"
}
}
}
VS Code / GitHub Copilot
Add to .vscode/mcp.json in your workspace:
{
"servers": {
"solar": {
"command": "solar-mcp"
}
}
}
Gemini CLI
Add to ~/.gemini/settings.json (global) or .gemini/settings.json (project):
{
"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
SOLAR_MCP_MOCK=1 solar-mcp
MCP Inspector
solar-mcp --transport streamable-http --port 8008
Development
git clone https://github.com/qso-graph/solar-mcp.git
cd solar-mcp
pip install -e .
License
GPL-3.0-or-later
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →