5 of the 10 internal tool builders we list have a public API, confirmed on their own website. Here they are side by side.
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 |
|---|---|---|---|---|---|---|---|
BudibaseThe open-source platform for modernising processes with AI agents, apps and automations. | ReviewsNone yetWrite one for Budibase | Lowest paid plan$299per monthCloud, as of November 14, 2026 | Free planYes | Free trial14 days | Public APIYes | Runs onDocker, Kubernetes | Main features
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DronaHQAn enterprise platform for building and governing internal apps and AI agents on your own data. | ReviewsNone yetWrite one for DronaHQ | Lowest paid plan$10per user per monthStarter, as of November 14, 2026 | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onMobile | Main features
|
NocoDBA no-code database platform with a spreadsheet interface. | ReviewsNone yetWrite one for NocoDB | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features
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| ReviewsNone yetWrite one for Retool | Lowest paid plan$10per builder per month, billed annuallyTeam, as of November 14, 2026 | Free planYes | Free trialYes | Public APIYes | Runs oniOS, Android | Main features
| |
SoftrSoftr is the AI app builder for business operations. | ReviewsNone yetWrite one for Softr | Lowest paid plan$19Basic, as of November 14, 2026 | Free planYes | Free trialYes | Public APIYes | Runs onNot confirmed | Main features
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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.
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