Connect Claude Code to tools via MCP changedmcp
Nearest release: v2.1.290, published 17 hours after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 5 Oct 2026 01:10 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 5 Oct 2026 01:37 UTC.
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758758A custom server that returns a `WWW-Authenticate` header pointing to its authorization server gets the same automatic discovery as any other remote server.
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760Claude Code also shows a startup notice when one or more configured servers need authentication, so you don't have to open `/mcp` to discover which servers need sign-in. The notice requires Claude Code v2.1.193 or later. It counts only servers you can sign in to from Claude Code. Before v2.1.218, it also counted [claude.ai connectors](#use-mcp-servers-from-claude-ai) that weren't connected in claude.ai, which you can connect only from claude.ai settings.
760Claude Code also shows a startup notice when one or more configured servers need authentication, so you don't have to open `/mcp` to discover which servers need sign-in. The notice counts only servers you can sign in to from Claude Code. Before v2.1.218, it also counted [claude.ai connectors](#use-mcp-servers-from-claude-ai) that weren't connected in claude.ai, which you can connect only from claude.ai settings.
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762762The notice announces each server once and leaves it out of the count at later launches until that server has connected and needs sign-in again. `/mcp` still lists every server that needs sign-in.
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