The best Horizon alternatives
6 tools that do a similar job to Horizon, 6 of them open source. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.
You're replacing
HorizonAn AI-powered news radar that collects news and writes daily briefings in English and Chinese.
- 1
CowAgent
Open source · MIT · ★ 47.8k
Open-source personal AI assistant that plans tasks, uses tools, and keeps memory across chat platforms.
Best for: People who want a self-hosted personal assistant reachable from their everyday chat apps; Developers who want an extensible agent framework with skills and MCP support
- 2
Paperclip
Open source · MIT · ★ 110k
Open-source Node.js and React app for organizing teams of AI agents around goals, tasks, and budgets.
Best for: Developers already running several AI coding agents who want one place to track them; Small teams experimenting with autonomous agents that need budgets and approval steps
- 3
nanobot
Open source · MIT · ★ 49.8k
Self-hosted personal AI agent in Python that works through a browser, terminal, or chat apps.
Best for: People who want a self-hosted personal assistant they can inspect and customize; Developers who want a small Python agent framework with memory, tools, and MCP support
- 4
MemPalace
Open source · MIT · ★ 60.2k
Local-first AI memory that stores your conversations verbatim and searches them semantically.
Best for: Developers who use Claude Code or another MCP-capable coding agent and want it to recall past sessions; People who want their conversation history kept locally rather than summarized by a third party
- 5
MCP for Unity
Open source · MIT · ★ 15.6k
Lets AI assistants like Claude or Cursor control the Unity Editor: scenes, scripts, assets, and tests.
Best for: Unity developers who want to prototype scenes by describing them in plain language; Developers who already use an MCP-compatible AI client such as Claude, Cursor, or VS Code
- 6
NewsNow
Open source · MIT · ★ 22.2k
A clean web reader that collects real-time trending news from many sources in one place.
Best for: People who want a quick, uncluttered view of what is trending in the news; Developers who want to self-host a personal news reader
How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to Horizon. We don't take payment for placement.