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Open-source AI knowledge tools

The INITE Atlas lists 14. By use, the list opens with Onyx, Nibomo, Mantle, Hispanic Legacy and Hyperresearch.

Offered under an open-source licence, per the pricing page; any paid tier is hosting or support.

Where each one says so

ToolWhere it says so
Onyx logoOnyxFree plan · From $20/user/moper the homepageonyx.app
Nibomo logoNibomoFrom $6.99/moper the homepagenibomo.com
Mantle logoMantleOpen sourcemantle-ai.techread Sep 19, 2026
Hispanic Legacy logoHispanic LegacyPrice not readper the homepagehispanic-legacy.com
Hyperresearch logoHyperresearchFree plan · From $9 per useper the homepagehyperresearch.ai
Hermes Markdown logoHermes MarkdownPrice not readper the homepagehermesmarkdown.com
Unmute logoUnmutePrice not readper the homepageunmute.ai
Nabsun logoNabsunPrice not readper the homepagenabsun.com
Atelier logoAtelierPrice not readper the homepageopen-atelier.app
Mindweave logoMindweavePrice not readper the homepagemindweave.space
Wrangle logoWranglePrice not readper the homepagewrangleapp.dev
Brain Memory logoBrain MemoryPrice not readper the homepagebrainmemory.ai
emdly logoemdlyPrice not readper the homepageemdly.com
Cyber Library logoCyber LibraryPrice not readper the homepagecyberlibrary.com

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk