Drupal Modeler API Now Open for Community Testing

Jürgen Haas has announced that the Modeler API, a new tool designed to support complex configuration workflows in Drupal, is now ready for community testing. The project, developed with backing from FreelyGive Ltd, introduces a UI-focused orchestration layer aimed at improving how users configure and manage advanced Drupal systems.

As outlined in Jürgen's detailed blog post, the Modeler API is designed to work across multiple Drupal modules that deal with automation and structured processes, including Event-Condition-Action (ECA) frameworks, AI agents, and migration systems. The API provides a visual and unified interface for managing these workflows, with initial integration support for BPMN.iO—a browser-based modeling tool for business process diagrams.

Jürgen emphasised that the Modeler API is not tied to any single use case, but rather serves as a foundational layer to coordinate complex logic in a way that is reusable, maintainable, and easier for site builders to understand. The approach prioritises visual clarity and modular structure, which is especially relevant for Drupal implementations that depend heavily on interconnected automated processes.

The current release is intended for testing only, and the developers are actively seeking feedback from the Drupal community to finalise the implementation. Haas has provided comprehensive testing instructions and encourages users to explore the API, report issues, and suggest improvements. This feedback will be essential to ensuring that stable releases of the Modeler API and all related modules can be published in the coming weeks.