Compatible with every major AI agent and IDE
What is the Liveblocks (Collaborative) MCP Server?
Connect your Liveblocks account to any AI agent to orchestrate real-time collaborative experiences and manage infrastructure through natural conversation.
What you can do
- Room Lifecycle — Create, list, update, and delete collaborative rooms with custom metadata and access controls.
- Presence & Interaction — Monitor active users in any room, set ephemeral presence, and broadcast custom events to connected clients.
- Data Synchronization — Retrieve and patch room storage or Yjs documents to manage shared state across collaborative sessions.
- Comments & Feedback — Manage collaborative threads, create new discussions, and resolve existing ones to streamline team feedback.
- User Identity — Authorize and identify users with specific permissions and group assignments via secure token generation.
How it works
- Subscribe to this server
- Enter your Liveblocks Secret Key from the dashboard
- Start managing your real-time infrastructure from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Product Managers — Monitor active collaboration sessions and review user feedback threads without leaving the chat interface.
- Full-stack Developers — Debug room storage, inspect Yjs document states, and manage room permissions directly from the IDE.
- Support Teams — Quickly identify active users in a room and verify room configurations to assist customers in real-time.
Built-in capabilities (19)
Obtain an access token with specific permissions
Broadcast a JSON event to a room
Create a new room
Create a thread and the first comment
Delete a room
Retrieve room details
Get the room's Storage tree (LSON or JSON format)
Get a JSON representation of the Yjs document
Obtain an ID token for a user
Initialize or reinitialize Storage
List users currently in the room
List rooms with filtering and pagination
List threads in a room
List Yjs version history snapshots
Apply JSON Patch operations to Storage
Resolve a thread
Set ephemeral presence for a user/agent
Update room properties (metadata, permissions)
Send a binary Yjs update
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Liveblocks (Collaborative) through native MCP adapters. Connect 19 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine Liveblocks (Collaborative) MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across Liveblocks (Collaborative) queries for multi-turn workflows
Liveblocks (Collaborative) in LangChain
Liveblocks (Collaborative) and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Liveblocks (Collaborative) to LangChain through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Liveblocks (Collaborative) in LangChain
The Liveblocks (Collaborative) MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 19 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in LangChain only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Liveblocks (Collaborative) for LangChain
Every tool call from LangChain to the Liveblocks (Collaborative) MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How can I see which users are currently active in a specific collaboration room?
You can use the list_active_users tool by providing the Room ID. The agent will return a list of all users currently connected to that room, including their connection IDs and associated info.
Is it possible to inspect or modify the shared state of a room from the AI?
Yes! Use get_storage to retrieve the current LSON/JSON storage tree or patch_storage to update specific keys in the room's shared state. For Yjs-based rooms, you can use get_ydoc and update_ydoc.
Can I manage user comments and discussion threads through this integration?
Absolutely. You can use list_threads to see all discussions in a room, create_thread to start a new one, and resolve_thread to mark a discussion as completed.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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