# Integrations

- [Node Types](/appizap-workflow-builder-pro/integrations/node-types.md): This section encompasses the node library, which serves as a comprehensive guide detailing the pre-installed nodes in Appizap Workflow Builder along with their respective authentication details.
- [Core Nodes](/appizap-workflow-builder-pro/integrations/core-nodes.md)
- [Actions](/appizap-workflow-builder-pro/integrations/actions.md)
- [Triggers](/appizap-workflow-builder-pro/integrations/triggers.md)
- [Credentials](/appizap-workflow-builder-pro/integrations/credentials.md)
- [Custom API Operations](/appizap-workflow-builder-pro/integrations/custom-api-operations.md): Authenticating API calls can be a challenging aspect of the setup process.   Appizap Workflow Buioffers support for credentials that extend to operations and services not covered by the default nodes.