Cloudflare’s product-specific MCP servers now serve only /mcp. A request to /sse returns 410 Gone with the server’s /mcp URL, which most MCP clients show in their connection error.
If your MCP client is configured with an /sse URL, change it to /mcp, for example https://docs.mcp.cloudflare.com/mcp. If you signed in through /sse, your client asks you to sign in again. Connections that already use /mcp are not affected.
Source: Cloudflare
