Hosted MCP entry: https://mcp.onlinesvr.com. Lab UI configurator often runs at http://127.0.0.1:3203; protocol may also mount at http://127.0.0.1:8091/mcp.
Pass Authorization: Bearer <API_KEY>. tools/list can discover published tools without a key; tools/call always requires a valid key.
Use the MCP configurator for Cursor, Claude Code, VS Code, and Codex snippets. Protocol details live on docs.onlinesvr.com/platform/mcp.