Claude on the web

Anthropic ยท Web app

Official site

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

Runs on
Web source
Kind
Web app source
Price
Free plan source
Source code
Not published
Connects to
Remote (HTTP), Remote (SSE) source
Publisher
Anthropic source

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