Claude on the web
Anthropic ยท Web app
Anthropic's Claude assistant in the browser. A remote MCP server is added as a custom connector under Customize > Connectors by entering its URL. Anthropic's cloud then makes the connection, so the server must be reachable from the internet. Streamable HTTP is the main transport and legacy SSE still works. Sign-in uses OAuth or fixed request headers.
Facts
How to add a server to Claude on the web
We do not write a config for Claude on the web yet. Its own docs show how to add a server: Claude on the web's MCP docs.
Claude on the web compared
Facts read from Anthropic's own pages on 2026-10-31; the description is ours, from its site. Every client