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A connection is a named bundle of credentials + base URL + transport config that one or more nodes share. The connection name appears on every node that uses it, never the credentials themselves.

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How a connection is referenced

A customApi node carries connectionName: "...". The engine resolves that name against the workflow’s connections map at runtime — bringing in the right credentials and base configuration without ever embedding them in the workflow definition. Common connections in production workflows:

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Storage and scoping

Connections live outside the workflow definition — they’re managed at the tenant level so:
  • Multiple workflows share the same connection without duplicating credentials.
  • Rotation in one place propagates everywhere.
  • Audit logs reference the connection_id rather than embedding the secret.
In production, connection secrets are stored in a secrets manager (AWS Secrets Manager / Vault). In the demo they live in environment variables resolved at startup.

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Rotation

1

Open the connection

Settings → Connections → click the connection.
2

Stage new credentials

Paste the new key/cert. Old credentials remain active.
3

Test

Run the built-in synthetic round-trip against a known-safe endpoint.
4

Promote

Switch the connection’s primary credential to the new one. New calls hit it immediately; in-flight calls drain on the old one.
5

Revoke

After the drain window, revoke the old credential upstream.

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What’s available at templating time

When a node executes against a connection, the templating layer can reference the named secrets registered to that connection. The exact list depends on what the connection ships — for an HTTP-based connection it’s typically an API token, a signing key, and any provider-specific headers. The templating layer does not expose the connection’s base URL or its full credential bag. Custom API nodes still declare their full URL in endpoint; the connection’s base config (mTLS cert, timeouts, retry policy) is applied transparently.

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Connection vs Data Source