NASA-validated computed planetary positions for your AI — 19 astrology tools, never hallucinated.
NASA-validated computed planetary positions for your AI — 19 astrology tools, never hallucinated. That is what the mcp mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.
Fully quit Claude Desktop (system tray) and relaunch it. Then ask: "What's the moon phase today?" — Claude calls the server and answers from genuinely computed positions.
Powered by the astrology engine of Llmastro. Learn more about the precision and architecture: https://llmastro.com/notre-moteur.
Installation goes through your MCP client rather than a global install: point it at pnpm on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
swisseph): a C++ build chain (python3, make, a compiler) on the machine. Otherwise, automatic fallback to astracore, with no configuration.Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. It is maintained by kairosastro-sketch; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
{
"mcpServers": {
"llmastro": {
"command": "npx",
"args": ["-y", "@cosmosos/mcp-ephemeris"]
}
}
}Configuration as documented by the project. Restart the client after saving.
swisseph): a C++ build chain (python3, make, a compiler) on the machine. Otherwise, automatic fallback to astracore, with no configuration.Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Microsoft's official browser automation server — drive a real browser through the accessibility tree, no screenshots needed.
GitHub's official server — repos, issues, pull requests, Actions and code security, straight from your assistant.
Issue tracking at the speed of conversation — Linear's official hosted server with OAuth and zero install.
Local repository surgery — status, diffs, commits, branches and history for any repo on disk.
Timezone sanity for AI — current time anywhere and correct conversions, without the model doing date math.