# OpenProject **Canonical:** https://apis.io/providers/openproject/ **Website:** https://www.openproject.org **APIs profiled:** 62 OpenProject is an open source project management platform offering work package tracking, Gantt charts, agile boards, time tracking, BIM, and enterprise project portfolio management. The OpenProject APIv3 is a hypermedia (HAL+JSON) REST API that exposes work packages, projects, users, attachments, custom fields, and many other resources. ## Kin Score — 35.6 / 100 (thin) Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 35.6). | Facet | Score | |---|---| | Discoverability | 68.5 | | Contract Quality | 62.7 | | Governance | 0.0 | | Contract Governance | 0.0 | | Operational Transparency | 13.2 | | Developer Ergonomics | 23.8 | | Commercial Clarity | 32.9 | | Access Clarity | 32.9 | ## Agent readiness — 30.6 (agent-ready) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | bearer | | Idempotency | no | | Error Semantics | verified | | OpenAPI Examples | verified | | Rate Limit Signal | documented | | Event Surface Described | no | | Agent Skills | no | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | | Delegated Identity | no | | Protected Resource Metadata | no | | Dynamic Client Registration | no | | Agentic Commerce | no | ## Access Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high). ## APIs (62) - **OpenProject Actions & Capabilities API** — An action is a change one can trigger within the OpenProject instance. This could be creating a work package, exporting work packages or updating a user. An action can also be s... - **OpenProject Activities API** — ## Local Properties | Property | Description | Type | Constraints | Supported operations | | :---------: | ------------- | ---- | ----------- | -------------------- | | id | Act... - **OpenProject Attachments API** — Attachments are files that were uploaded to OpenProject. Each attachment belongs to a single container (e.g. a work package or a board message). ## Actions | Link | Description ... - **OpenProject Budgets API** — *Note: Budgets are currently only implemented as a stub. Further properties of budgets might be added at a future date, however they will require the view budget permission to b... - **OpenProject Categories API** — The categories endpoints return collections or single entities of type `Category`. The following tables list the different properties of `Category` entities. ## Linked Propertie... - **OpenProject Collections API** — Whenever a client calls a resource that can return more than one element, it will receive a collection of elements. However as collections can become quite large, the API will *... - **OpenProject Configuration API** — 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 sett... - **OpenProject Custom actions API** — Custom actions are a preconfigured set of changes that are applied to a work package. Currently, this resource is a stub. The conditions and changes defined for the custom actio... - **OpenProject Custom Field Items API** — The Custom Field Items API from OpenProject — 2 operation(s) for custom field items. - **OpenProject Custom Fields API** — The Custom Fields API from OpenProject — 1 operation(s) for custom fields. - **OpenProject Custom Options API** — The custom options endpoints return collections or single entities of type `CustomOption`. The following tables list the different properties of `CustomOption` entities. ## Link... - **OpenProject Documents API** — A document is a file containing a list of attachments. *Please note, that the endpoint is only a stub for now.* ## Actions None yet ## Linked Properties | Link | Description | T... - **OpenProject EmojiReactions API** — The EmojiReactions API from OpenProject — 2 operation(s) for emojireactions. - **OpenProject Favorites API** — The Favorites API from OpenProject — 2 operation(s) for favorites. - **OpenProject File Links API** — The File Links API from OpenProject — 14 operation(s) for file links. - **OpenProject Forms API** — This API provides forms as a concept to aid in editing or creating resources. The goal of forms is to: * make writable properties of a resource discoverable * show to which valu... - **OpenProject Grids API** — A grid is a layout for a page or a part of the page of the OpenProject application. It defines the structure (number of rows and number of columns) as well as the contents of th... - **OpenProject Groups API** — Groups are collections of users. They support assigning/unassigning multiple users to/from a project in one operation. This resource does not yet have the form and schema endpoi... - **OpenProject Help texts API** — The help texts endpoints return collections or single entities of type `HelpText`. The following tables list the different properties of `HelpText` entities. ## Linked Propertie... - **OpenProject Meetings API** — The Meetings API from OpenProject — 2 operation(s) for meetings. - **OpenProject Memberships API** — Users and groups can become members of a project. Such a membership will also have one or more roles assigned to it. By that, memberships control the permissions a user has with... - **OpenProject News API** — News are articles written by users in order to inform other users of important information. ## Actions | Link | Description | Condition | |:-------------------:|----------------... - **OpenProject Notifications API** — Notifications are created through notifiable actions in OpenProject. Notifications are triggered by actions carried out in the system by users, e.g. editing a work package, but ... - **OpenProject OAuth 2 API** — TBD - **OpenProject Portfolios API** — Portfolios are one of the types of [workspaces](https://www.openproject.org/docs/api/endpoints/workspaces) in OpenProject structuring the information (e.g. work packages, wikis)... - **OpenProject Posts API** — Represents a post in a board. Posts are also referred to as messages in the application. *This resource is currently a stub* ## Actions | Link | Description | Condition | |:----... - **OpenProject Previewing API** — Throughout OpenProject user input for many properties can be formatted using *Markdown*. Using the appropriate rendering endpoint it is possible to render custom formatted input... - **OpenProject Principals API** — Principals are the superclass of users, groups and placeholder users. This endpoint returns all principals within a joined collection but can be filtered to e.g. only return gro... - **OpenProject Priorities API** — The priorities endpoints return collections or single entities of type `Priority`. The following tables list the different properties of `Priority` entities. ## Linked Propertie... - **OpenProject Programs API** — Programs are one of the types of [workspaces](https://www.openproject.org/docs/api/endpoints/workspaces) in OpenProject structuring the information (e.g. work packages, wikis) i... - **OpenProject Project Phase Definitions API** — Project phases separate the whole of the project's duration into smaller, distinct parts. Such a phase will then have different focus on certain aspects of project management. E... - **OpenProject Project Phases API** — Project phases separate the whole of the project's duration into smaller, distinct parts where each phase has its own start and end date. Such a phase will then have different f... - **OpenProject Projects API** — Projects are one of the types of [workspaces](https://www.openproject.org/docs/api/endpoints/workspaces) in OpenProject structuring the information (e.g. work packages, wikis) i... - **OpenProject Queries API** — A query defines how work packages can be filtered and displayed. Clients can define a query once, store it, and use it later on to load the same set of filters and display optio... - **OpenProject Query Columns API** — A QueryColumn can be referenced by a Query to denote the work package properties the client should display for the work packages returned as query results. The columns maps to t... - **OpenProject Query Filter Instance Schema API** — A QueryFilterInstanceSchema is a Schema specifically for describing QueryFilterInstances. Because the behaviour of FilterInstances, with regards to the `values` property, differ... - **OpenProject Query Filters API** — A QueryFilter can be referenced by a filter instance defined for a Query to denote the filtering applied to the query's work package results. This resource is not an instance of... - **OpenProject Query Operators API** — A QueryOperator can be referenced by a QueryFilter to denote the operator to be applied to the filter relation. ## Actions As of now, no actions are defined. ## Linked Propertie... - **OpenProject Query Sort Bys API** — A QuerySortBy can be referenced by a Query to denote the sorting applied to the query's work package results. It consists of the columns to sort by as well as the direction (asc... - **OpenProject Relations API** — Work packages may be related to each other in different ways. ``` +--------------+ +--------------+ | | 1 1 | | | Work package +-------------+--------------+ Work package | | | ... - …and 22 more, listed in full on the page. ## Agentic access (1) - **Openproject Agentic Access** — 275 operations · 115 acting ## Security (3) - **Openproject Authentication** — http · 1 scheme - **Openproject Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC - **Openproject Vulnerability Disclosure** — security.txt · contact published ## Plans (1) - **Openproject Plans Pricing** ## Tags Agile, Gantt, Open-Source, Project Management, Time Tracking, Work Packages --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/openproject/). Scores are computed from the provider's own public artifacts under a published rubric.