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OpenProject Custom Options API

The custom options endpoints return collections or single entities of type `CustomOption`. The following tables list the different propertiesof `CustomOption` entities.## Linked Properties| Link | Description | Type | Constraints | Supported operations ||:-------------:|-------------------------- | ------------- | ----------- | -------------------- || self | This custom option | CustomOption | not null | READ |## Local Properties| Property | Description | Type | Constraints | Supported operations ||:----------------:| ---------------------------------------------- | -------- | ----------- | -------------------- || id | The identifier | Integer | | READ || value | The value defined for this custom option | String | | READ |custom options are options of list custom fields.

OpenProject Custom Options API is one of 62 APIs that OpenProject publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Custom Options. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 1 operation across 1 path, and defines 3 schemas. It is described by OpenAPI 3.1.2, at version 3.

Requests are made against 3 base URLs: https://qa.openproject-edge.com, https://qa.openproject-stage.com, https://community.openproject.org.

1 operations 1 paths 3 schemas 1 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.2
API Version
3
Base URL
https://community.openproject.org/api/v3
Authentication
HTTP Basic
Resource Areas
1

Authentication & Security 1

OpenProject Custom Options API declares 1 security scheme for authenticating requests. It accepts HTTP basic authentication (BasicAuth). By default, every request must be authenticated.

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 GET. Each is listed below with its method, path, parameters, and response codes.

Custom Options 1

The custom options endpoints return collections or single entities of type CustomOption. The following tables list the different properties of CustomOption entities. Linked Proper…

GET
/api/v3/custom_options/{id}
View Custom Option
View_Custom_Option 1 param → 200404

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are Link (7 properties), ErrorResponse (4 properties), CustomOptionModel (3 properties). Each schema is shown below with its type and property counts.

Link
object
7 properties 1 required
CustomOptionModel
object
3 properties
ErrorResponse
object
4 properties 3 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

openproject-custom-options-api-openapi.yml Raw ↑

Other APIs OpenProject publishes across the network.

OpenProject Actions & Capabilities API
OpenProject Activities API
OpenProject Attachments API
OpenProject Budgets API
OpenProject Categories API
OpenProject Collections API
OpenProject Configuration API
OpenProject Custom actions API
OpenProject Custom Field Items API
OpenProject Custom Fields API
OpenProject Documents API
OpenProject EmojiReactions API
Where this information came from

This is an independent, third-party profile of OpenProject Custom Options API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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