Velt SDK

In plain words

Velt SDK is a developer tool that adds multiplayer features to web applications, enabling real-time collaboration similar to Figma or Google Docs. It allows users to leave contextual comments, have discussions, and see who is online without leaving the app. The SDK is designed for quick implementation, with setup claimed to take approximately 30 minutes. It targets developers building productivity and collaborative applications.

written from the facts on this page · September 2026

From the sources

Velt is an SDK that makes your web app multiplayer, just like Figma or Google Docs. You can enable your end users to leave contextual comments, have discussions & see who’s online–all without leaving your app. The best part - you can set it up in 30 min!

Embeddable review and approval for AI-native apps. Comments, approval flows, review agents, memory, and audit trails in one SDK.

Velt brings governance to your product. AI and humans review together and work only ships once a human approves. Proposed Pro price was $92, above the approved Q3 band. I suggest $85, the band maximum. If your product has work that more than one of your users reviews or approves, this is for you. If it doesn't, it isn't. Your users want agents that act. Nobody wants agents that act alone. The hard part is what happens between an agent's suggestion and a change to your users' data. Every agent suggestion becomes a comment a human approves. On approval, the change is applied through your webhook, with a permanent record of who allowed what. Vendor rate is 12% over contract. Suggest correcting…from velt.dev

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