Modify React Flow from the server.

We've just released a `mutateFlow` API, allowing you to edit your multiplayer nodes & edges from your Node.js back end. Use it to set up server-side editing, including AI agents that can edit @xyflow.com.

Try it → $ npx liveblocks upgrade

Unveil Week recap: Realtime collaboration for humans and agents | Liveblocks blog Liveblocks Unveil Week ran from 6–10 April, celebrating daily launches focused on making your app agent-ready. Here’s a recap.

Liveblocks Unveil Week just ended.

We shipped:

• Feeds: Make agents native users.
• React Flow: Multiplayer flowcharts.
• Chat SDK: Sync comments with Slack, Teams.
• Python SDK: Python as your back end.
• Agent skills: Best practices for AI.

lblcks.io/5gcNaLh

Agent skills for Yjs & Liveblocks.

Today, we're launching two agent skills, enabling AI coding assistants to follow Yjs and Liveblocks best practices more consistently. Compatible with Claude Code, Codex, Cursor, and more.

lblcks.io/jy6rekf

Liveblocks now available for Python 🐍

@liveblocks.io 🤝 Chat SDK 🤝 Chat apps 🚀
Amazing work by @nimeshnayaju.bsky.social 🙌🏻

Super excited to see it finally live 🤩
Realtime AI Agents ready flow charts by @liveblocks.io 🚀

Introducing Feeds and APIs for Agent Workflows | Liveblocks blog We’re introducing new APIs for connecting agents to realtime rooms and a new Feeds primitive. This unlocks new workflows where agents can act as native users of software.

Introducing Feeds.

New realtime primitives for storing chat messages, workflow status, agent logs—anything that needs a live list.

Plus, new APIs that allow AI to act as native users, showing live presence and editing sync engine documents.

lblcks.io/DuqqClj

AI agents are becoming native users of software.

Today, we’re kicking off Unveil Week with a broader vision than human-only collaborative features. Software itself needs to change for the age of agents.

lblcks.io/Ly5sHf7

Unveil week: The Age of Agent-Ready Software | Liveblocks AI agents are becoming native users of software. Apps need a new foundation. During Unveil Week, we’re launching something new every day to help make your app agent-ready.

Liveblocks Unveil starts next week.

We’re shipping new features every day to help you build agent-ready apps. Register & share for a chance to win one of our 10 exclusive pieces of swag.

lblcks.io/unveil-2026

Liveblocks Unveil.

AI agents are becoming native users of software, and apps need a new foundation. We've built it.

🗓️ April 6–10. Releases every day.

What's new in Liveblocks → February 2026

• Open sourcing our dev server and HTTP router.
• Improved realtime data engine for Liveblocks Storage & Yjs.
• Programatically manage Liveblocks projects with REST APIs.

Blog post ↓

Integrate presence and contextual commenting in 5 minutes.

We've released new React components, making it even quicker to build your collaborative app. Add realtime cursors, live avatars, and use new pinned comments in canvases or table libraries like ag-grid.com

Blog post ↓

import { array, iso8601, … } from "decoders"; const userDecoder = object({ id: number, name: string, createdAt: optional(iso8601), tags: array(string), });

Zod isn't the only option.

Our team uses decoders, built by the wonderful @nvie.com. We find it's:

• Easier to read, as it looks like TypeScript.
• Quicker to debug, with its human-readable error messages.
• Lighter to ship, with tree-shaking and smaller bundles.

Learn more ↓

Start a modern collaborative Next.js application in minutes.

Our Next.js Starter Kit features a number of realtime documents, each with a different form of multiplayer: Text editor, canvas, block-based editor, whiteboard.

Try it → $ npx create-liveblocks-app@latest --next

You should really give a try to this awesome router 🚀

This router is chef kiss 💪🏻😍🚀

Introducing Zen Router: our open-source type-safe router compatible with Cloudflare Workers | Liveblocks blog We’ve open sourced Zen Router: an opinionated HTTP router with typed path params, built-in body validation, and a clean model for auth. Here’s why we built it and what makes it different.

Introducing Zen Router: our open-source HTTP router.

Zen Router handles billions of requests per month at Liveblocks, and today we're open sourcing it. Initially designed for Cloudflare Workers, but also compatible with Node.js, Bun, and more.

lblcks.io/Vvvviny

The new Storage engine and its benefits | Liveblocks guide Learn about our improved v2 Storage engine and how to enable it

We've released a new engine for Liveblocks Storage.

You can now create significantly larger collaborative documents and will see quicker load times. Additionally, other limits have been raised, such as the size of broadcast events.

Opt-in now to try it.

lblcks.io/WGH153O

Build multi-tenant collaborative apps with Organizations.

When building with Liveblocks, you can define a user's organization, and all resources will be automatically compartmentalized—rooms, threads, notification, etc.

Below, you can see a different inbox in each workspace.

How to set up End-to-End (E2E) testing with Playwright | Liveblocks guide Learn how to write End-to-End (E2E) tests for your Liveblocks application using Playwright and the local dev server.

Set up E2E testing in your Liveblocks app.

We've written a step-by-step guide on how to test your multiplayer app using Playwright and our new open-source dev server.

lblcks.io/2nnRkJs

Incredible and beautiful work 💪🏻🚀

Open sourcing the Liveblocks sync engine and dev server | Liveblocks blog We’ve open sourced our server stack. Starting today, you can run and test your multiplayer applications with a Liveblocks server locally.

We've open sourced our sync engine and dev server.

Starting today, you can run and test your multiplayer applications locally using our new server package and CLI. Additionally, this marks a shift towards an open-source Liveblocks.

lblcks.io/nys2qqB

“That was the moment it clicked. Something I thought would be complicated was immediately smooth.”—thanks Teddy Ni!

Exactly the experience we aim to provide at Liveblocks.

Learn how Magic Oatterns built their realtime collaborative AI workflow ↓

Set up a multiplayer table in your app.

Add realtime editing and online presence to your table with Liveblocks Storage. We've added a new demo to our showcase, highlighting where to get started when building this.

Experimenting with a demo for a new interactive post for @liveblocks.io.

Can you guess what it'll be about?

Enable multiplayer editing in your Next.js app in minutes.

Our Tiptap extension provides full multiplayer cursors, commenting, a notifications inbox for missed comments. Plus a whole infrastructure for collaboration, including webhooks, REST APIs, and DevTools.

Get started ↓

What's new in Liveblocks → January 2026

• Comment metadata: Enables two-way sync, custom comments.
• Always use knowledge: Require copilots to read their knowledge.
• New quickstart flow: New focused get started pages, plus new guides.

Blog post ↓

Understanding sync engines: How Figma, Linear, and Google Docs work | Liveblocks blog Learn how different realtime sync engines work, dive into the details of Yjs and CRDTs, and discover which collaboration infrastructure is right for your application.

Understanding sync engines: How Figma, Linear, and Google Docs work.

In our latest article, learn how realtime sync engines work and which to choose when building your application.

lblcks.io/lqF8ghY

The Liveblocks team met in Punta Cana for this year's retreat 🇩🇴

We've just released new Liveblocks Comments features.

• Semantically search comments in a room with our new hook.
• Add custom items to thread dropdown menus—see "Ask AI" in video.

Additionally, we've written a number of new Yjs guides ↓