{"version":"2.1.310","anchor":"mcp-connector-sign-in-check-surfaces-discovery-auth-failure","canonical_anchor":"mcp-connector-sign-in-check-surfaces-discovery-auth-failure","heading":"Connectors that need sign-in now say so instead of reporting a tool listing error","tier":"notice","area":"MCP","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.310\/e\/mcp-connector-sign-in-check-surfaces-discovery-auth-failure","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.310","markdown":"### Connectors that need sign-in now say so instead of reporting a tool listing error\n\nA connector that fails because you are not signed in now reports that it needs authentication, not that its tools could not be listed\n\n**What**\n\nAn MCP server is an outside tool or data source Claude Code connects to. When Claude Code asks a connector for its list of tools and that fails because sign-in is needed, it now reports \"MCP server needs authentication\" and marks the problem as one you can fix by signing in. Before, it reported that the connector was connected but its tools could not be listed.\n\n**Why**\n\nYou now get a message that points you to signing in, instead of an error that suggests something else is broken.\n\n- Area: MCP\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 1\/5\n- Scope: individual\n- Heads-up: no"}