Connect Grok

Grok can connect to OpenPost through a custom remote connector. Use a Grok account with access to custom connectors and an OpenPost account.

Add the connector

1. Open Grok Connectors.
2. Choose New Connector → Custom and name it OpenPost.
3. Enter https://app.openpo.st/mcp as the server URL.
4. Complete the supported sign-in flow. For OAuth, sign in to OpenPost and choose read-only or full access. If configuring a bearer header instead, use an OpenPost developer token with the matching MCP scope.

Check the connection

Enable OpenPost in your conversation and ask, “List my OpenPost workspaces.” Name a workspace, then request a schedule review without making changes.

Grok Build CLI

Grok Build is a separate client. Add its connection with:

grok mcp add --transport http openpost https://app.openpo.st/mcp

Complete OAuth when prompted. A Grok web connector does not configure the CLI automatically.

If it does not connect

Grok's cloud connector needs public HTTPS. A self-hosted LAN address or localhost is not reachable from Grok web. Check access to custom connectors and reconnect if authorization expires.

See Grok connectors and Grok Build MCP.