To install, copy your Liveblocks secret key from a project in [your dashboard](https://liveblocks.io/dashboard) and run one of the following
To install, copy your Liveblocks secret key from a project in your dashboard and run one of the following commands, replacing sk_xxxxxxxxxxxx with your secret key. That is what the liveblocks mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.
The server publishes 2 tools. What each one is for:
Cursor — 1. Go to File → Cursor Settings → MCP → Add new server. 2. Add the following, inserting your secret key:Codex — 2. Run the following command in the terminal, inserting your secret key:The server ships on npm as github, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
Configuration is passed through the environment: LIVEBLOCKS_SECRET_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Liveblocks's toolset — Cursor, Codex — is a fair guide to whether it matches your workflow. It is maintained by liveblocks; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Liveblocks's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| Cursor | 1. Go to File → Cursor Settings → MCP → Add new server. 2. Add the following, inserting your secret key: |
| Codex | 2. Run the following command in the terminal, inserting your secret key: |
{
"mcpServers": {
"liveblocks": {
"command": "npx",
"args": ["-y", "github:liveblocks/liveblocks-mcp-server"],
"env": {
"LIVEBLOCKS_SECRET_KEY": "sk_xxxxxxxxxxxx"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| LIVEBLOCKS_SECRET_KEY | Credential the server authenticates with. | Yes |
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