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Chatbase vs Knowster

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Chatbase starts at $32, Knowster at $39. Both have a free tier. Only Chatbase ships a public API.

Side by side

FactChatbaseKnowster
CategoryCustom GPTs & Bot BuildersAI Support Chatbots
Pricing modelFreemiumFreemium
Starts at$32 month$39 month
Public APIYesNo
PlatformsWeb, APIWeb
CompanyChatbaseKnowster
Launched2023
Last verifiedSep 6, 2026Sep 1, 2026

What our research says

Chatbase

The fastest route from a folder of help docs to a working support widget, and priced accordingly once real traffic arrives. Credits are the whole story: 700 messages a month at $32 is a small site's volume, and the jump to a plan that carries actual traffic is $120, then $400. Budget from expected conversations, not from the feature grid.

Pros

  • Crawl-and-embed setup produces a usable widget in an afternoon with no retrieval plumbing to write
  • Actions and human handoff mean it degrades into a ticket rather than a dead end
  • A real free tier exists for evaluation, and every paid plan carries a 7-day trial

Cons

  • API access is gated to Standard at $120/month, four times the entry price
  • Overage at $40 per 1,000 credits is steep next to the in-plan rate on Pro
  • Removing vendor branding costs $1,188/year, more than the entire Hobby plan
  • Free-tier agents are deleted after 14 days of inactivity, so an abandoned evaluation disappears

Knowster

A straightforward pick for a small business that wants a support widget trained on pages it already has, without a lengthy setup. The catch is it's a one-developer product with no disclosed company behind it, so there's no visible track record for support or uptime guarantees.

Pros

  • One-line install with automatic re-training when pages change
  • Answers in the visitor's language regardless of source content language
  • Free tier with no credit card required
  • Lead capture built into the chat flow

Cons

  • Built and run by a single developer with no company entity disclosed
  • White-labeling is locked behind paid tiers
  • No API or integrations beyond the chat widget itself

Which one fits

Choose Chatbase if you need

  • SaaS and ecommerce teams deflecting repeat questions from existing documentation
  • Solo founders who need a support presence before they can hire one
  • Agencies standing up a branded bot per client, provided each client funds its own agent slot

Choose Knowster if you need

  • Small sites that want a Q&A widget without writing a separate knowledge base
  • Businesses that get questions in multiple languages from one set of source pages

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