I'm trying to connect Raindrop.io's MCP server (https://api.raindrop.io/rest/v2/ai/mcp) to Littlebird AI (app.littlebird.ai), a macOS/cloud AI assistant that supports custom MCP servers via HTTPS URL. The connection is failing, and your docs mention that cloud-based clients need to reach out to be enabled. Could you whitelist Littlebird as a supported client?