Astral MCP Server

by davidmosiah Your server? Claim it

local only

Astral MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 88 installs a week from npm. Last commit 1 Sep 2026.

Precision-audited astrology MCP: natal charts, transits, synastry, moon phases. No API key.

Installs per day peak 49 · avg 11 · -27% w/w

a month agotoday

Installs / week

npm · astral-mcp

Stars

0 open issues

1 Sep 2026

Last commit

2 releases in 90 days

MIT

License

TypeScript

Nothing serious here today

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

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.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add astral-mcp -- npx -y astral-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "astral-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "astral-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.astral-mcp]
command = "npx"
args = ["-y", "astral-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "astral-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "astral-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "astral-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "astral-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: ASTRAL_MCP_TRANSPORT (Transport to run. Defaults to stdio. Set to http to expose a streamable HTTP endpoint instead), ASTRAL_MCP_HOST (Host to bind when ASTRAL_MCP_TRANSPORT=http. Defaults to 127.0.0.1), ASTRAL_MCP_PORT (Port to bind when ASTRAL_MCP_TRANSPORT=http. Defaults to 3000), ASTRAL_MCP_ALLOWED_ORIGIN (Allowed CORS origin for the HTTP transport. Defaults to the bound host:port).

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same job, measured the same way

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Connector

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Western natal charts, horoscopes, transits and synastry for AI agents, verified vs NASA JPL.

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Thema: Astrology Software

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Naelos.ai

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Astrology charts, transits and eclipses from NASA JPL data, 13,200 BC to AD 17,191. Free, no key.

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Astral MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Astral MCP?

Astral MCP 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 npm package astral-mcp was installed 88 times last week.

How do I connect Astral MCP?

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 astral-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Astral MCP?

The npm package astral-mcp was installed 88 times in the last week. Week over week that is -27%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Astral MCP open source?

Yes — it is published under the MIT licence, written in TypeScript 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.