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Solar Data MCP Server

local only

Solar Data runs on your own machine — the client starts it, so there is no endpoint to ping. 80 installs a week from pypi. Last commit 7 Jul 2026.

US open solar data for agents: PVWatts production, tariffs & ROI, market data, forecasts. 18 tools.

Installs per day peak 30 · avg 12 · -29% w/w
a month agotoday
80
Installs / week
pypi · solar-data-mcp
0
Stars
0 open issues
7 Jul 2026
Last commit
from GitHub
MIT
License
Python

Nothing serious here today

Today is the operative word: we check Solar Data every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add solar-data-mcp -- uvx solar-data-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "solar-data-mcp": {
      "command": "uvx",
      "args": [
        "solar-data-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.solar-data-mcp]
command = "uvx"
args = ["solar-data-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "solar-data-mcp": {
      "command": "uvx",
      "args": [
        "solar-data-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "solar-data-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "solar-data-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: NREL_API_KEY (Free key from https://developer.nlr.gov/signup/ — required for production modeling and irradiance tools), OPENEI_API_KEY (Free key for URDB utility tariff lookups (economics tools)), EIA_API_KEY (Free key for EIA electricity price data (economics tools)), AHJ_REGISTRY_TOKEN (Optional SunSpec AHJ Registry token for permitting-authority lookups).

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Solar Data — questions

Answers built from our own checks of this server.

Why is there no uptime for Solar Data?
Solar Data runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package solar-data-mcp was installed 80 times last week.
How do I connect Solar Data?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls solar-data-mcp straight from pypi; nothing to host, nothing to sign up for.
How many people use Solar Data?
The pypi package solar-data-mcp was installed 80 times in the last week. Week over week that is -29%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Solar Data open source?
Yes — it is published under the MIT licence, written in Python and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.