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Microsoft Project Tasks API

Manage project tasks and subtasks

Microsoft Project Tasks API is one of 16 APIs that Microsoft Project publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 14 JSON Schema definitions.

Tagged areas include Task. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, code examples, a JSON-LD context, and 14 JSON Schemas.

This API exposes 8 operations across 5 paths, and defines 8 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against a single base URL, https://{tenant}.sharepoint.com/sites/pwa/_api/ProjectServer.

8 operations 5 paths 8 schemas 1 DELETE4 GET1 PATCH2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://{tenant}.sharepoint.com/sites/pwa/_api/ProjectServer
Authentication
OAuth 2.0
Resource Areas
1

Authentication & Security 1

Microsoft Project Tasks API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2) using the authorizationCode flow, exposing 2 scopes. By default, every request must be authenticated.

  • oauth2 — OAuth 2.0 authentication via Azure AD for SharePoint Online

Paths & Operations 8

Across 5 paths, the API surfaces 8 operations — 1 DELETE, 4 GET, 1 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Tasks 8

Manage project tasks and subtasks

GET
/Projects('{projectId}')/Tasks
Microsoft Project List Project Tasks
listProjectTasks 1 param → 200404
GET
/Projects('{projectId}')/Tasks('{taskId}')
Microsoft Project Get Project Task
getProjectTask 2 params → 200404
GET
/Projects('{projectId}')/Draft/Tasks
Microsoft Project List Draft Tasks
listDraftTasks 1 param → 200
POST
/Projects('{projectId}')/Draft/Tasks
Microsoft Project Create Draft Task
createDraftTask 1 param body → 201
DELETE
/Projects('{projectId}')/Draft/Tasks('{taskId}')
Microsoft Project Delete Draft Task
deleteDraftTask 2 params → 204
PATCH
/Projects('{projectId}')/Draft/Tasks('{taskId}')
Microsoft Project Update Draft Task
updateDraftTask 2 params body → 200
GET
/Projects('{projectId}')/Draft/TaskLinks
Microsoft Project List Draft Task Links
listDraftTaskLinks 1 param → 200
POST
/Projects('{projectId}')/Draft/TaskLinks
Microsoft Project Create Draft Task Link
createDraftTaskLink 1 param body → 201

Schemas 8

The contract defines 8 schemas that model the data the API accepts and returns. The most detailed are Task (18 properties), TaskCreate (4 properties), TaskLink (4 properties), TaskUpdate (3 properties). Each schema is shown below with its type and property counts.

Task
object
18 properties
TaskCreate
object
4 properties 1 required
TaskLink
object
4 properties
TaskUpdate
object
3 properties
TaskLinkCreate
object
3 properties 2 required
TaskCollection
object
1 property
TaskLinkCollection
object
1 property
Error
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

microsoft-project-tasks-api-openapi.yml Raw ↑

Other APIs Microsoft Project publishes across the network.

Microsoft Project Online CSOM API
Microsoft Project OData Reporting API
Microsoft Project JavaScript API
Microsoft Project Assignments API
Microsoft Project Calendars API
Microsoft Project Custom Fields API
Microsoft Project Enterprise Project Types API
Microsoft Project Event Handlers API
Microsoft Project Lookup Tables API
Microsoft Project Phases API
Microsoft Project Projects API
Microsoft Project Resources API
Where this information came from

This is an independent, third-party profile of Microsoft Project Tasks 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.

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