# Open Ephemeris (slim)

> Open Ephemeris, an MCP server by openephemeris.com, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Sub-arcsecond astrology on NASA JPL DE440: natal, transits, Human Design, Vedic, BaZi.

- Full: https://www.anchorterminal.com/tools/openephemeris-open-ephemeris.md (~500 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/tools/openephemeris-open-ephemeris.json · canonical https://www.anchorterminal.com/tools/openephemeris-open-ephemeris
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

# Open Ephemeris

> Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: MCP server, by openephemeris.com (https://openephemeris.com/astrology-mcp)
- Listed because: It's published in the registry under openephemeris.com, a namespace the registry only gives to whoever proves they control that domain.
- What the official MCP registry says: Sub-arcsecond astrology on NASA JPL DE440: natal, transits, Human Design, Vedic, BaZi.

## Facts

- MCP registry: `com.openephemeris/open-ephemeris` 4.15.1
- Endpoint: https://mcp.openephemeris.com/mcp (streamable HTTP)
- Source: https://github.com/openephemeris/openephemeris-MCP
- Website: https://openephemeris.com/astrology-mcp
- GitHub stars: 4
- Registry entry updated: 2026-09-15

## Tools

- Tools: the endpoint asks for credentials before listing them (checked 2026-10-04 22:23 UTC)

- JSON: https://www.anchorterminal.com/api/v1/tools/openephemeris-open-ephemeris.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming