Open Ephemeris
Sub-arcsecond astrology on NASA JPL DE440: natal, transits, Human Design, Vedic, BaZi.
MCP server · by openephemeris.com
About
Open Ephemeris is an MCP server published by openephemeris.com. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-18.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http open-ephemeris https://mcp.openephemeris.com/mcp
[mcp_servers.open-ephemeris]
url = "https://mcp.openephemeris.com/mcp"
{
"mcpServers": {
"open-ephemeris": {
"url": "https://mcp.openephemeris.com/mcp"
}
}
}
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 4.15.1 | Forks (GitHub): 2 Stars (GitHub): 5 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Possibly the same plugin
Listings that share a signal with this one but not enough for us to treat them as the same product.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
78 astrology calculations, Tarot, symbolic readings and Vedic calendars via two scoped MCP tools.
-
fatenava-mcp io.github.fatenava/fatenava-mcp
Cast BaZi, Zi Wei Dou Shu, and Western astrology natal charts - deterministic, free, no account.
-
Astrology from a real ephemeris: natal charts, transits, synastry, eclipses, returns. No API keys.
-
ERUX Astrology & Ephemeris Engine
Ephemeris natal & mundane charts, Vimshottari Dasha, transit horoscopes, Horas, and Vedic yogas.
-
alchm-kitchen io.github.gregcastro23/alchm-kitchen
Live transits, ESMS ingredients, cosmic recipes, synastry & transit×natal overlays by alchm.kitchen
-
vedaksha io.github.arthiqlabs/vedaksha
Vedic astrology and astronomical ephemeris: kundali, panchanga, dashas, vargas, transits
-
astro io.github.aryaminus/astro
Multi-tradition astrology. 19 modes, 18 tools. Deterministic ephemeris engine.
-
connector com.natalcompass/connector
Birth charts, transits, moon phases and more from precise astronomical calculations. Natal Compass.
-
Swiss Ephemeris astrology: natal charts, transits, synastry, solar returns and astrocartography.
-
AstroNest — Vedic Astrology & Ephemeris
Vedic astrology for AI agents: kundli, daśā, guna milan, life, venture and gem readings, ephemeris.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Mirror turns Claude into a psychological astrologer. Instead of listing transits and placements like a textbook, it conducts a multi-phase interactive reading — gathering birth…
-
I Ching divination with Wilhelm-Baynes translation using traditional three coins method
-
Any-to-any AI sub-agent — generate images, videos, PDFs, presentations, research reports, music, spreadsheets, 3D models, memes, diagrams, prototypes, game assets, and stickers…
-
Claude Code channel server for Hyday — bridges note and journal events to Claude Code sessions.
-
Local-first persistent session memory for Claude Code and other agents. SQLite + FTS5, no cloud.
Has a listing on Claude Code: claude-plugins-official (5)
-
Build, iterate on, deploy, and manage Lovable apps from Claude Code. Bundles the official Lovable MCP server (remote, OAuth 2.1) and adds focused commands for the common…
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
Apollo GraphQL agent skills for Claude Code — Apollo Client, Server, Federation, Connectors, Router, Rover CLI, iOS, Kotlin, and the Apollo MCP server. Covers schema design, query…
-
Skills for creating MCP Apps with the MCP Apps SDK
-
Precise local semantic code search via MCP. Indexes your codebase with Go AST parsing, embeds with Ollama or LM Studio, and exposes vector search to Claude through an MCP server…
Has a listing on Claude: knowledge-work-plugins (5)
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
Connects Claude Code to the Synthflow AI voice-agent platform through its hosted MCP server, with skills for reviewing calls and auditing agent prompts, plus a docs-search…
-
AI-first project auditor and re-engineer based on the 9 design principles and 7 design patterns from the TechWolf AI-First Bootcamp
-
Connect to preclinical research tools and databases (literature search, genomics analysis, target prioritization) to accelerate early-stage life sciences R&D
-
Ready-to-run workflows for financial advisors in Claude Cowork, drawing live data from the tools their firm already uses through third-party connectors. The plugin holds no client…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Skills for NVIDIAs ecosystem spans GPU acceleration, CUDA, AI agents, inference, robotics, Physical AI, Omniverse, and simulation. This plugin helps you understand the pieces…
-
Build with OpenAI APIs, Agents SDK, and ChatGPT Apps, and create and save OpenAI API keys from Codex.
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
-
Connect Google Calendar for scheduling, availability, daily briefs, and event management.
-
General life-sciences research workflows with query routing, evidence synthesis, and optional parallel subagent analysis across genetics, omics, biology, chemistry, structure…
Has a listing on Community GitHub marketplaces (4)
-
Trustworthy multi-tradition astrology. 19 modes, 3 traditions, zero deps. Computes mathematically real charts from birth data via a deterministic ephemeris engine.
-
Astrology and astronomy computed at NASA mission-grade precision: natal charts, transits, eclipses, moon phases, synastry, Human Design, and Chinese/Vedic astrology via the…
-
Professional astrology consultation skill providing birth chart analysis, daily horoscopes, compatibility reports, and moon phase readings
-
Deterministic batch tools so LLM agents stop guessing dates and math.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
Visualizes live session AI-credit usage as a Pac-Man board with pellets, ghosts, fruit milestones, and game-over limits.
-
Run a lightweight, role-separated AI development team with flexible tools, developer-selected models, proportionate planning, and optional QA.
-
Model, visualize, and deploy applications with Radius from the GitHub Copilot app and CLI.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Build and manage Microsoft Dataverse solutions using natural language. Includes table/column creation, solution lifecycle, data operations, and MCP server configuration.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
Has a listing on Cursor: cursor/plugins (5)
-
Iterative self-referential AI loops using the Ralph Wiggum technique.
-
Add Grok voice to an app: realtime speech-to-speech, speech-to-text dictation, text-to-speech read-aloud, and a log-driven fix loop for voice sessions.
-
Skills for building on the Cursor Origin API. Fetch the live spec first, then follow the Origin rules for credentials, scopes, webhooks, paging, and errors. Includes a skill that…
-
Build apps, scripts, and automations with the TypeScript SDK.
-
playwright-mcp io.github.microsoft/playwright-mcp
Playwright Tools for MCP
Has a listing on Docker MCP Catalog (5)
-
Connect your chat repl to wolfram alpha computational intelligence.
-
Access the latest Astro web framework documentation, guides, and API references.
-
The Official Model Context Protocol (MCP) server for Kagi Search & other tools.
-
Give your AI agents trusted access to the full Postman platform.
-
Graph database queries with Cypher and Gremlin.
Has a listing on Official MCP Registry (5)
-
78 astrology calculations, Tarot, symbolic readings and Vedic calendars via two scoped MCP tools.
-
fatenava-mcp io.github.fatenava/fatenava-mcp
Cast BaZi, Zi Wei Dou Shu, and Western astrology natal charts - deterministic, free, no account.
-
Astrology from a real ephemeris: natal charts, transits, synastry, eclipses, returns. No API keys.
-
ERUX Astrology & Ephemeris Engine
Ephemeris natal & mundane charts, Vimshottari Dasha, transit horoscopes, Horas, and Vedic yogas.
-
alchm-kitchen io.github.gregcastro23/alchm-kitchen
Live transits, ESMS ingredients, cosmic recipes, synastry & transit×natal overlays by alchm.kitchen
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.