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.
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.
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.
claude mcp add solar-data-mcp -- uvx solar-data-mcp
{
"mcpServers": {
"solar-data-mcp": {
"command": "uvx",
"args": [
"solar-data-mcp"
]
}
}
}
[mcp_servers.solar-data-mcp]
command = "uvx"
args = ["solar-data-mcp"]
{
"mcpServers": {
"solar-data-mcp": {
"command": "uvx",
"args": [
"solar-data-mcp"
]
}
}
}
{
"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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Answers built from our own checks of this server.