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An MCP connection makes an external service’s tools available to your organization. Registering a connection and enabling it for a session are separate steps.

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Register a connection

An owner or administrator can open Tools → Register MCP:
  1. Enter a recognizable Connection name.
  2. Enter the server’s public HTTPS Endpoint URL for Streamable HTTP.
  3. Select Bearer token or No authentication. Enter the token when required.
  4. Click Save & test, then review the status and discovered tools.
Credentials cannot be viewed after saving. When editing the same endpoint, leave the token blank to keep the current credential. Use Test & refresh after changing the server’s available tools.

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Use tools

Workflow tool selectors require approved bindings. If a connected server’s tools are missing, ask an owner or administrator to check their approval and connection revision. For actions that change external data, pair Confirm action with Call MCP tool. See the node explorer.

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Connection states

Active connections can be selected. For error connections, review the displayed error, correct the endpoint or credential, and test again. Disable prevents selection until re-enabled. Deleting a connection prevents new sessions from selecting it. Published workflows use pinned dependencies. Refreshing discovery does not automatically update a published workflow; review, test, and publish changes deliberately.