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In Settings > Connectors > Add connector, choose Remote or Local command and enter a Name (lowercase letters, digits, hyphens). For Remote, enter the server URL; Advanced settings covers transport (SSE or Streamable HTTP), OAuth client settings, and the Headers helper command. For Local command, enter the command; Advanced settings covers arguments and environment variables. Browse Connectors Directory opens the public directory. Remote servers that need login take you through the provider’s sign-in page. Every tool from a custom connector starts at Ask each time. On the connector’s page, set individual tools to Always allow or Block under Tools, or turn on Skip approvals for the whole connector.
Skip approvals disables the per-call card for every tool on that connector. Only use connectors from developers you trust.
Local-command connectors run inside the sandbox with the same network limits as Claude’s code and a per-connector writable directory. Environment variables for local connectors are saved unencrypted in a configuration file readable by your account only; don’t put high-value secrets there.