Prerequisites
Before troubleshooting, verify:- MCP Server enabled: Admin Console > Platform > Glean MCP servers
- OAuth Server enabled: Admin Console > Settings > Third-party access (OAuth)
- Correct instance name: Found in Admin Console > Settings > About Glean
- User has Glean access: Active account with appropriate permissions
Known Issues
ChatGPT
See host-specific troubleshooting: ChatGPTGeneral Setup Requirements
Authentication
- OAuth server must be enabled (Admin Console > Settings > Third-party access)
- User must have active Glean account with appropriate permissions
- For API tokens: Use scopes MCP, AGENT, SEARCH, CHAT, DOCUMENTS, TOOLS, ENTITIES
Network
- Firewall must allow HTTPS traffic to
*.glean.com - Check proxy settings if behind corporate firewall
Host-Specific Configuration
- Refer to the MCP Configurator for user-facing host setup instructions: Install MCP Hosts
- Conceptual overview: What is an MCP Host?
Support
During Beta:- Post in Developer Community group in Gleaniverse
- Include: Host application, error messages, reproduction steps
- Install MCP Hosts - MCP Configurator
- Setting up Glean MCP Server - Initial setup guide