MCP Auth Token
What Is It
The MCP Auth Token is a unique credential generated automatically when you sign up on Lyra Terminal. It is bound to your Operator account and serves as the only means by which your Agent is authenticated to access the Lyra MCP server — the protected interface through which all execution capabilities are made available.
Every Operator receives exactly one token. It is not shared, not transferable, and not regenerated unless requested through support.
Where to Find It
- During Quickstart — Step 1 under "Lyra Auth Token — Your MCP Key"
- In the Terminal — top-right panel, shown as truncated
lyra_auth_...
Warning
Keep your token private. Only enter it in Railway — never share it with anyone.
How It Gets Configured
- Go to Railway → service → Variables
- Add:
LYRA_AUTH_TOKEN = lyra_auth_your_full_token_here - Click Update
Token Management
MCP Auth Tokens are account-bound and do not expire under normal operation. There is currently no self-serve regeneration option.