The configuration endpoint allows to read certain configuration parameters of the OpenProject instance. Note that there is no 1:1 relationship between this endpoint and the settings you can find in your settings.yml.

For now this endpoint will only allow access to settings deemed useful for a client to know in general.

As clients might rely on the combination of both, the system settings as well as the current user’s preferences, the resource embeds the current user’s preferences so client can fetch both with one request.

Link Description Type Nullable Supported operations
self The configuration Configuration READ
userPreferences The preferences of the current user UserPreferences READ

Local Properties

Property Description Type Condition Supported operations
maximumAttachmentFileSize The maximum allowed size of an attachment in Bytes Integer READ
perPageOptions Page size steps to be offered in paginated list UI Integer[] READ


View configuration
  • Response  200
  • Headers
    Content-Type: application/hal+json
        "_type": "Configuration",
        "_links": {
            "self": {
                "href": "/api/v3/configuration"
            "userPreferences": {
                "href": "/api/v3/my_preferences"
        "maximumAttachmentFileSize": 5242880,
        "perPageOptions": [1, 10, 100]