Managed real-time infra
Skip months of WebSocket, presence, and CRDT plumbing. Velt runs the infrastructure so your engineers stay focused on your core product.
$499/mo for YC teams under $1M ARR
Make something people want
Ship the high-quality collaborative features users expect from the best YC companies — comments, notifications, multiplayer editing, presence, and cursors. Live in a week, not 4-5 months.
Trusted By Top Teams
Trusted By Top Teams
What's included
Every YC account ships with the full Velt feature suite and the infrastructure to scale it.
Full feature suite
Comments, notifications, recordings, multiplayer editing, presence, cursors, huddles, and reactions — all in one SDK with one bill.
Pre-built data models
Schemas, optimized data models, and cross-browser compatibility ship with the SDK. No reinventing the wheel for every collaboration primitive.
Enterprise-grade encryption
SOC 2 Type II and HIPAA-ready encryption, audit logs, and granular access controls — the security posture your enterprise customers will ask for on day one.
The YC deal
$499/mo for your first year
YC teams making less than $1M ARR get a year of special pricing. Three steps to claim.
Step 01
Get a free API key
Sign up at console.velt.dev with your YC email so we can verify your batch. Start integrating immediately — no call required to start.
Step 02
Book a 30-min call
Pick a time that works. We'll review your use case, map Velt features onto your product, and answer any integration questions.
Step 03
Ship in a week
Most YC teams go live in under a week. We pair you with a Velt engineer in a private Slack channel so blockers clear fast.
Trusted by YC teams
From new YC batches to companies acquired by Workday, founders use Velt to ship collaboration in days.
Velt’s commenting & notification features are bundled with a lot of magic
Velt gave us 1-on-1 attention in our own private slack channel. The team was quick to add new features that we needed (thanks for the category feature!) We were extremely happy with how customizable Velt’s components were, allowing us to keep a cohesive look and feel to our product. Highly recommended.
Yuri KlebanSr. Product Manager @Google
Full collaboration features shipped in under 1 week
Building our own collaborative features was becoming an overwhelming task, so we were relieved when we found Velt. Their SDK included all the commenting and notifications features we needed, and were easy to integrate. We shipped comments in just a week, without having to build from scratch!
Chris BakkeHead of Product @X
Increased weekly active users by 26%
Velt gave us 1-on-1 attention in our own private slack channel. The team was quick to add new features that we needed (thanks for the category feature!) We were extremely happy with how customizable Velt’s components were, allowing us to keep a cohesive look and feel to our product. Highly recommended.
Jeff CunningCPO @metaimpact
Increased engagement by 10% and helped ship 5x faster.
Took about a week for the implementation. The speed of iteration from the Velt team is incredible compared to alternatives, they're always happy to discuss and find a solution. The Velt team was extremely supportive and responsive to feedback. Docs were clear and easy to understand.
William AngelLead PM @Trumpet
Saved 3 FTEs & will boost retention
Implementing Velt took weeks, not the quarters it would have taken us to build in-house, even with 3 FTE engineers. We're already seeing added value for our users and anticipate increased retention. Velt's product is slick, and their team is incredibly supportive.
Hope CallawaySr. Product Manager @Leadpages
Saved massive development effort
Velt provides the critical commenting functionality our customers rely on, saving us massive development effort. Migration from our previous vendor was seamless.
Fenne Buitenrust HettemaProduct Lead @Cloudfactory
With Velt we turned months of development into weeks of delivery.
We considered building this feature in-house. However, we quickly realized that creating a robust, scalable commenting system with all the modern collaboration features our users expect would require months of development effort and significant engineering resources, pulling our teams away from core innovation projects. That's when we discovered Velt.
Chris BakkeHead of Product @X
Boosted customer happiness.
Commenting is something that we knew we wanted in our app but with limited resources it wasn’t going to be prioritized. That is until we found out about Velt. The team was fantastic to work with.
Ethan VeresCo-founder and CTO @eqtble
We were able to launch 5x times faster than building from scratch.
Velt is a great product that sped up our feature development. It's saved us weeks of work.
Roman SevastCEO @Awesomic
With Velt, a single engineer could build comments feature in a few minutes.
Velt is outstanding! It helped us enable clear and quick communication with customers. With Velt, a single engineer could add comments in a few minutes without help from Product or Design. The docs were clear and straightforward. We spent only a few minutes making Comments work.
Weller MirandaSr. Software Engineer @Marco
Boosted engagement in our product!
It saved on engineering and the team is very quick on action! Keep up the responsiveness. We look forward to a long term partnership.
Imre NagyVP of Engineering @Colossyan
Frequently Asked Questions
Get Started in 3 Steps
All features take less than 5 minutes to get started
1. Initialize Velt
Setting up velt takes 2 minutes
app > npm i @veltdev/client
app > Enter your API Key:
2. Add Component
Copy paste from 15+ components
<VeltComments>
</VeltComments>
3. Style Your Components
Match your UI language with CSS
Open
P0
16px
Tt
PoppinsPrimary / 6
Hope CallawaySenior PM @Leadpages
With Velt, Implementation took weeks, instead of the quarters it would have taken, even with 3 FTEs