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AI · alternatives · 2026

24 alternatives to OpenEphemeris

NASA-grade astrology data, drawn live inside Claude via MCP

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1
    AstraPixelsfree tier, from $5/mo▲267

    ​​A pixel-art solar system at its real current positions.​

    Aug 2026 · astrapixels.com · its alternatives →

  2. 2

    Allow AI Agents to help you with Figma designs!

    Jan 2026 · exdst.com · its alternatives →

  3. 3

    We just released an MCP server that lets Claude (or any MCP client) pull real-time and historical financial data: equities, options chains, crypto, FX, commodities, fundamentals, economic indicators, and 50+ technical signals. You can ask things like: “Plot NVDA’s RSI vs AMD’s over the past year.” “Show the yield curve shift since 2020.” “What are Apple’s recent earnings surprise trends? “Make a 3-statement model for ORCL.” Claude runs the requests, does the math, and returns the data or generates charts/models all inside the chat. Setup takes about a minute. You’ll need Claude Pro…

    Nov 2025 · mcp.alphavantage.co · its alternatives →

  4. 4

    Open MIT-licensed ephemeris engine in C

    May 2026 · github.com · its alternatives →

  5. 5

    AI astrology built on NASA-grade planetary data

    Feb 2026 · cosmicguideai.com · its alternatives →

  6. 6

    Vedic astrology API for developers. We dogfood it ourselves.

    Jul 2026 · vedintelastroapi.com · its alternatives →

  7. 7

    A tediously accurate scale model of the solar system

    2014 · joshworth.com · its alternatives →

  8. 8

    Problem: LLMs need context data to give accurate answers and thousands of great publicly available datasets remain vastly unexploited. Anthropic’s MCP servers are awesome, but we need many more servers and an easy way to discover them. What if it took only one command to connect any LLM to any open dataset? Open Data MCP, a 2-in-1 solution: 1. Access Open Data: - 10 seconds setup to query any integrated Open Data MCP server from Claude (and more to come) - Simple CLI tool 2. Access Open Data: - Create your own Open Data MCP server(s) - Get templates, guides, and community - Get instant…

    2024 · github.com · its alternatives →

  9. 9

    Give your AI a real Vedic astrology engine, not vibes

    Aug 2026 · mcp.birthstar.ai · its alternatives →

  10. 10

    A personal astrology podcast, made fresh every day

    Mar 2026 · astrologica.app · its alternatives →

  11. 11AO

    Hello HN! My name is Rémy and I recently published an astronomy dashboard where everything is open source: the code of the website, the framework it is based on and the library that computes astronomical data. For the last few years, I have been developing the Ruby library Astronoby (https://github.com/rhannequin/astronoby) with as much dedication and perseverance I could while I don't have any scientific academic background. My end goal was to use this library and build a website that not only provides as much data as possible, but let anyone access and understand how it…

    Nov 2025 · its alternatives →

  12. 12AJ

    I don't always all-caps, but when I do, it's because every word is an acronym. The NASA HORIZONS[1] system is a telnet service that provides planetary data and ephemeris tables, which are basically coordinate-time plots for celestial bodies. It's pretty archaic and somewhat difficult to use, especially since it just dumps out text tables and you have to parse it to do anything with it. Some projects, e.g. KDE Marble, use it as a data source and typically just consume it with a little procedural code to get what they need. I wanted to provide a full-fledged library for it so that you can…

    2013 · horizons.herokuapp.com · its alternatives →

  13. 13

    Hey HN, Claude Code is pretty agentic now. It writes scripts, calls APIs, uses CLIs. But when something requires actually clicking through a website, it stops and asks me to do it. Problem is, I'm often unfamiliar with these platforms myself. "Go to App Store Connect and generate a P8 key" okay but where? I end up spending 10 minutes navigating menus I've never seen before. I started delegating these tasks to Perplexity's Comet browser. It handles the clicking, returns what I need. But copy-pasting between Claude and Comet got old fast. So I built this MCP server to connect them directly.…

    Jan 2026 · github.com · its alternatives →

  14. 14

    Hi, this is Tristan, CPO of XTrace. We are launching a very cool feature that is inspired by Andrey Karpathy's LLM Wiki mindmap. Let everyone who doesn't have enough sessions and markdowns made with claude code be able to visualize their own memory mindmap!

    May 2026 · github.com · its alternatives →

  15. 15

    Seven astrology systems. One cosmic verdict.

    Jun 2026 · astroscroll.app · its alternatives →

  16. 16

    Real ephemeris astrology, AI tarot expert chat, Horomon pet

    Jul 2026 · play.google.com · its alternatives →

  17. 17

    I am Rohan, and I have grown really frustrated with CC's search and read tools. They use Haiku to summarise all the search results, so it is really slow and often ends up being very lossy. I built this MCP that you can install into your coding agents so they can actually access the web properly. Right now it can: - search the general web - search Reddit - read and scrape basically any webpage Install it: npx openalmanac setup The MCP is completely free to use. We have also built a central store where you can contribute things you learned while exploring. If you find something useful, you can…

    Apr 2026 · openalmanac.org · its alternatives →

  18. 18

    There are plenty of Artemis II trackers out there. I looked at a bunch and kept running into the same issues - some had data that didn't look right, it was hard to use on smaller screen, others felt overly complicated for what I actually wanted to know: what's the crew doing, where is Orion, how fast is it going. The best one I found was issinfo.net/artemis, which inspired a lot of the design. So I built my own. The part that was genuinely interesting to me was the data. Turns out anyone can query JPL's Horizons API for full ephemeris data on the Orion spacecraft - position, velocity,…

    Apr 2026 · artemis.fyi · its alternatives →

  19. 19

    Open plain-text file format for AI memory. Your assistant's long-term memory as .dai files on your disk: readable by Claude, GPT, Gemini, Cursor, local models and grep (all LLM models work). MCP server + hooks for Claude Code, Claude Desktop, Cursor, Windsurf, Codex. 83% LongMemEval-S (GPT-4o), 92%

    Sep 2026 · github.com · its alternatives →

  20. 20

    Real‑time astrology engine powered by Swiss Ephemeris + WASM

    Feb 2026 · astroclock.ch · its alternatives →

  21. 21

    Free Chrome extension that tracks your Claude, ChatGPT (Codex), and Gemini usage in real time. Plan simulation, cost savings analysis, rate limit prediction, and team dashboard.

    Jul 2026 · claudetuner.com · its alternatives →

  22. 22

    Give Claude, ChatGPT, Gemini, or any AI access to your real business data. Connect Shopify, Semrush, GA4, HubSpot and 130+ tools in 60 seconds. No installs. Works in your browser.

    Jun 2026 · skillwiki.app · its alternatives →

  23. 23HT

    Fun little project, had Gemini 2.5 Pro summarize HN's top 30 each hour, both the stories and comment sections. Pretty impressed with Gemini 2.5. It's probably the first model other than Claude 3.7 Sonnet where I actually find the output readable. I normally use 3.7 Sonnet for coding, but used Gemini for the codegen on this one as well. Was pretty impressed! Using Cursor, it seemed to instruction-follow better than Claude generally does, and remain lucid during very long agent sessions. Thanks for your feedback!

    2025 · tinysums.ai · its alternatives →

  24. 24

    High Precision Astrology python Library

    May 2026 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →