Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 Document360AI knowledge base software to build, organize and scale documentation for customers and internal teams. | ReviewsNone yetWrite one for Document360 | Lowest paid planNot confirmed | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features
|
 GuruStructures, governs, and continuously improves your company's knowledge | ReviewsNone yetWrite one for Guru | Lowest paid planNot confirmed | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onChrome extension, Slack, Microsoft Teams | Main features
|
 HelpSiteSimple, AI-searchable knowledge-base software for public help centers, private SOPs. | ReviewsNone yetWrite one for HelpSite | Lowest paid planNot confirmed | Free planNot confirmed | Free trial14 days | Public APIYes | Runs onNot confirmed | Main features
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 KnowledgeOwlCreate and share internal and external knowledge and documentation easily in one platform. | ReviewsNone yetWrite one for KnowledgeOwl | Lowest paid plan$100per monthBasic, as of November 13, 2026 | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features
|
| ProProfs Knowledge BaseAI knowledge base software for customer help centers and internal employee knowledge bases. | ReviewsNone yetWrite one for ProProfs Knowledge Base | Lowest paid plan$49per author per monthEssentials, as of November 14, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features
|
 SlabEasily create, organize, and discover knowledge for your entire organization | ReviewsNone yetWrite one for Slab | Lowest paid plan$6.67per user per month, billed annuallyStartup, as of October 20, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | Runs onmacOS, Windows, Chrome extension | Main features
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 TettraStop answering repetitive questions in Slack with an AI-powered knowledge base | ReviewsNone yetWrite one for Tettra | Lowest paid plan$8per user per month, billed yearlyScaling, as of October 23, 2026 | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onSlack | Main features
|
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a public API. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed