Source checked: 2026-07-24 Official source: https://docs.anthropic.com/en/docs/claude-code/mcp
Use the complete Secure server address shown by Core during onboarding, including ?setup_attempt=.... Outside onboarding, use https://core.gradien.ai/mcp/continuity.
Add Core
Run the native remote HTTP setup command, replacing the placeholder with the full address shown in Core:
claude mcp add --transport http core '<secure-server-address>'
Then start a fresh Claude Code session, run /mcp, select Core, and approve the browser login if prompted. A newly added server may not appear in the already-running session.
Use the --scope user option if Core should be available across all projects supported by the current Claude Code version. Keep the default project or local scope when the user wants a narrower setup.
Do not substitute Claude Desktop instructions here. Claude Code uses its own MCP configuration and command-line client.
If Core is still missing after a full restart, inspect claude mcp list before adding another entry. Duplicate registrations make authentication recovery harder.