Introduction
As of FME Flow 2025.1, the V3 REST API has been deprecated. The current V3 API will remain accessible, but no new features or general bug fixes will be implemented. Starting with FME Flow 2026.0, the V3 API will be removed, and we encourage all users to prepare their systems for this change.
The V4 REST API offers enhanced security and usability, including new and reorganized endpoints, and the removal of some endpoints. For information on migrating from V3 to V4, please log into FME Flow, click the question mark in the top right corner, select REST API, and then click the Migrating from REST API V3 tab.
Alternatively, you can go to http://<yourFMEFlowHost>/fmeapiv4/docs/index.html and replace <yourFMEFlowHost> with the appropriate hostname.
Endpoint Changes
As of the FME Flow REST API V4, some endpoints have been moved, and others have been removed entirely.
Removed Endpoints
Automation logs can now be managed within the Flow UI and not through the REST API.
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GET /automations/workflows/{id}/log- Download the automation workflow log file -
DELETE /automations/workflows/{id}/log- Clear the automation workflow log file
Moved Endpoints
The following endpoint has changed:
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GET /cleanup/tasks/automationLogs- List automation logs cleanup tasks- New:
GET /cleanup/system/{type}Where type is automationLogs
- New:
Additionally, many /automations/ endpoints have been updated with a cleaner design - the /workflows/ part of the endpoint has been removed. For details on all the endpoint changes, please see the Migrating from REST API V3 tab on your FME Flow REST API V4 documentation.
Additional Resources
If you have a specific data question or get stuck at any time, post a question in our FME Community. FME Experts worldwide and our Support Team here at Safe Software are online to help. We have other tutorials and articles regarding FME Flow REST API, as well as APIs in general.