A vendor publishes its MCP server at an https endpoint and documents both an HTTP address and an SSE address for it. Which transport does Claude Code's documentation put forward as the recommended one?

The principle — Transport is a property you declare when you add a server, and the choice is mostly made for you by where the server runs.

Why the key is correct — For a server reached at a URL, the documentation states outright that HTTP is the recommended option for connecting to remote MCP servers. A vendor offering both addresses is offering a preferred path and a fallback.

Why the others are wrong — SSE is the older path here, not the newer one. Nothing negotiates the transport on your behalf. And stdio describes a program running on your own machine, not a hosted address.

Remember this — Remote means HTTP unless the service gives you nothing else.

Sources — Anthropic's Claude Code MCP reference.