io.github.UI5/mcp-server

Command

Environment

• UI5_MCP_SERVER_ALLOWED_DOMAINS

  A comma-separated list of domains that are allowed to be used in various tools, for example: 'localhost, example.com, sub.example.com'. Set to an empty string to allow any domains. For wildcard subdomains, prefix the domain with a dot: '.example.com'. This will match 'www.example.com' but not 'example.com'.

• UI5_MCP_SERVER_RESPONSE_NO_STRUCTURED_CONTENT

  Set to any value to disable structured content in the MCP server responses.

• UI5_MCP_SERVER_RESPONSE_NO_RESOURCES

  Set to any value to disable resources in the MCP server responses, see https://modelcontextprotocol.io/specification/2025-06-18/server/resource. This is useful for clients that do not support resources, see https://modelcontextprotocol.io/clients, such as Cursor or the Gemini CLI.

• UI5_LOG_LVL

  Internal log level (https://ui5.github.io/cli/stable/pages/Troubleshooting/#changing-the-log-level): 'silent', 'error', 'warn', 'info', 'perf', 'verbose' or 'silly'

• UI5_DATA_DIR

  Directory where the MCP server stores its data, such as cached API references. Defaults to the '.ui5' directory in the user's home directory.