Last updated 08-14-2026
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Velt
Velt is a productivity SDK that drops comments, review flows, and human approvals into your own web app without building collaboration infrastructure from scratch. Agents propose changes as threaded comments; humans approve or reject; your webhook applies the update with a permanent audit trail. SOC 2 Type II, HIPAA, and EU data residency options cover regulated buyers.
Most teams spend two quarters wiring mentions, anchoring, and approval state machines. Velt ships pre-built React components, REST APIs, and webhooks billed on monthly active documents (MADs), not seats. OpenEnvoy runs 500,000-plus reviews on Velt, with 2 million-plus review decisions logged in production.
SaaS builders, fintech platforms, and AI agent products use Velt so agents can suggest edits without direct database write access. The free Hacker tier includes 100 MADs for dev environments, while Growth and Enterprise add production SLAs, unlimited team members, and isolated hosting.
Free Hacker plan includes 100 monthly active documents for dev environments
Comments SDK anchors threads to text, cells, canvases, video frames, or custom components
Agents propose changes as comments; humans approve before webhooks apply updates
Pricing bills on monthly active documents (MADs), not seats or connections
SOC 2 Type II, HIPAA with BAA, and EU data residency on Enterprise plans
Supports React, Angular, Vue, Next.js, Lexical, Tiptap, and React Flow integrations
Human-in-the-loop approvals let agents suggest changes without direct write access.
MAD-based pricing avoids charging for idle connections or seat counts.
Free tier gets a first comment live in about 5 minutes with npm install.
Enterprise compliance covers SOC 2, HIPAA, and EU data residency.
Free Hacker plan blocks production deployment and caps at 100 MADs.
Growth and Enterprise pricing requires a sales contract with no public rates.
Requires engineering time to wire webhooks and wrap your UI components.
What is Velt?
Velt is a collaboration SDK that adds comments, notifications, multiplayer editing, and human approval workflows to your product. Agents and humans share the same comment API, with webhooks firing when reviews are approved.
How does Velt pricing work?
Velt bills on monthly active documents (MADs), not seats. The free Hacker plan includes 100 MADs for dev only. Growth and Enterprise use contract-based MAD limits with production deployment and SLAs.
What is a monthly active document on Velt?
A Velt monthly active document is a unique document where users perform CRUD operations through Velt features like comments or notifications during the month. Merely opening a document without collaboration does not count.
Can AI agents use Velt without write access?
Yes. Velt lets agents post proposed changes as comments. A human approves or rejects, and your backend webhook applies the change only after approval, keeping agents from touching production data directly.
Which frameworks does Velt support?
Velt ships SDKs for React, Angular, Vue, Next.js, and vanilla JavaScript. It integrates with editors like Lexical, Tiptap, and BlockNote plus canvas tools like React Flow.
Is Velt secure for enterprise deployments?
Velt is SOC 2 Type II certified and offers HIPAA with BAA, GDPR APIs, pen testing, and dedicated server options on Enterprise plans. EU, APAC, and NA region hosting is available.