Ephemeris MCP Server

by scottchronicity Your server? Claim it

local only

Ephemeris MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 82 installs a week from pypi. Last commit 27 Mar 2026.

Precision astronomical ephemeris and planetary positions via the Swiss Ephemeris.

Installs per day peak 25 · avg 12 · -12% w/w

a month agotoday

Installs / week

pypi · ephemeris-mcp

Stars

0 open issues

27 Mar 2026

Last commit

from GitHub

AGPL-3.0

License

Python

What the code does

We read the source, 4 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command [пакет] test_mcp_client.py:15

    proc = subprocess.Popen(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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 ephemeris-mcp -- uvx ephemeris-mcp

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

{
  "mcpServers": {
    "ephemeris-mcp": {
      "command": "uvx",
      "args": [
        "ephemeris-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.ephemeris-mcp]
command = "uvx"
args = ["ephemeris-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "ephemeris-mcp": {
      "command": "uvx",
      "args": [
        "ephemeris-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "ephemeris-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "ephemeris-mcp"
      ]
    }
  }
}

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Ephemeris MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Ephemeris MCP?

Ephemeris 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 pypi package ephemeris-mcp was installed 82 times last week.

How do I connect Ephemeris 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 ephemeris-mcp straight from pypi; nothing to host, nothing to sign up for.

How many people use Ephemeris MCP?

The pypi package ephemeris-mcp was installed 82 times in the last week. Week over week that is -12%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Ephemeris MCP open source?

Yes — it is published under the AGPL-3.0 licence, written in Python and 4 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.