Open Ephemeris MCP Server
by openephemeriscom.openephemeris/open-ephemerisv4.15.1
Astrology from the NASA JPL DE440 ephemeris: natal, synastry, progressions, transit search, Human Design, Vedic, BaZi and astrocartography.
context tax
queued
security
queued
cold start
queued
freshness
Active9d ago
Install Open Ephemeris MCP server
Install in Claude Code
claude mcp add openephemeris -- npx -y @openephemeris/mcp-serverInstall in Cursor
{
"mcpServers": {
"openephemeris": {
"command": "npx",
"args": [
"-y",
"@openephemeris/mcp-server"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"openephemeris": {
"command": "npx",
"args": [
"-y",
"@openephemeris/mcp-server"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"openephemeris": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@openephemeris/mcp-server"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"openephemeris": {
"command": "npx",
"args": [
"-y",
"@openephemeris/mcp-server"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Remote endpoints
- streamable-http
https://mcp.openephemeris.com/mcp
Freshness
Active — last maintenance signal 9d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-30 · 9d ago · GitHub
Latest release
2026-08-23 · 48d ago · GitHub · v4.12.0
Package published
no data · npm/PyPI
Registry entry updated
2026-09-15 · 25d ago · official registry · v4.15.1
FAQ
›How do I install the Open Ephemeris MCP server in Claude Code?
Run: claude mcp add openephemeris -- npx -y @openephemeris/mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Open Ephemeris require an API key?
No required environment variables are declared in its published metadata.
›Can I use Open Ephemeris as a remote (hosted) MCP server?
Yes — it offers both a hosted endpoint and a local stdio package.
›Is Open Ephemeris in the official MCP registry?
Yes, as com.openephemeris/open-ephemeris.
Alternatives to Open Ephemeris
Other design MCP servers.