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How to add the core.blue MCP server to Claude (web and desktop)

Server URL: https://mcp.core.blue/
Sign-in: No sign-in. Paste the URL and it connects.
Our hands-on result: Works 7 of 7 tasks passed, tested Oct 18, 2026 with MCP TypeScript SDK (reference client).

Claude setup

https://mcp.core.blue/

1. Open Settings, then Connectors, then Add custom connector.
2. Name it blue-core-memory and paste the URL: https://mcp.core.blue/
3. Click Add. No sign-in is needed.
4. Start a new chat and turn the connector on from the tools menu.

We ran the hands-on test in a reference client, not in Claude. This config follows Claude's documented format for remote (Streamable HTTP) servers. If it fails for you, tell us and we will retest.

Same server, other clients

• core.blue MCP in Claude Code
• core.blue MCP in Cursor
• core.blue MCP in VS Code
• core.blue MCP in ChatGPT

Full core.blue test report | Compare all tested connectors | Connector Weather