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 |
|---|---|---|---|---|---|---|---|
 BotpressThe enterprise-grade AI agent platform for customer support, with no technical ceiling and no per-seat cost. | ReviewsNone yetWrite one for Botpress | Lowest paid plan$150per month, billed annuallyPlus, as of November 14, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onWeb | Main features
|
 DocsBotDocsBot turns your knowledge base into AI agents. | ReviewsNone yetWrite one for DocsBot | Lowest paid plan$49per monthPersonal, as of November 14, 2026 | Free planYes | Free trialYes | Public APIYes | ||
| LandbotA no-code platform to build AI agents and chatbots for WhatsApp and your website. | ReviewsNone yetWrite one for Landbot | Lowest paid plan$22.50per month billed annuallyStarter, as of November 14, 2026 | Free planYes | Free trial14 days | Public APIYes | ||
 StackAIBuild secure, compliant AI applications in minutes with a drag-and-drop no-code platform. | ReviewsNone yetWrite one for StackAI | Lowest paid planSee plans | Free planYes | Free trialNot confirmed | Public APIYes | Runs on | |
 TarsAI Agents for customer support and sales across every channel. | ReviewsNone yetWrite one for Tars | Lowest paid plan$499per monthPremium, as of November 14, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onWeb, WhatsApp, Email |
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 free plan. 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