PubNub MCP Server CLI (local)

Sign in to the PubNub Admin Portal as an Owner or Account Admin, then open API Management / Service Integrations. Create a Service Integration or open an existing one, choose Generate API Key, set its expiration, and copy the key when it is shown. PubNub states the key is shown only once; if lost, generate a new one and revoke the old key. See Service Integrations and API Keys and the Admin API intro.