Microsoft Project APIs

aid: microsoft-projects
name: Microsoft Project APIs
description: >-
  A collection of APIs for Microsoft Project, enabling project management, task tracking,
  resource allocation, and collaboration capabilities.
image: https://www.microsoft.com/en-us/microsoft-365/project/project-management-software
created: '2024-01-15'
modified: '2026-04-28'
specificationVersion: '0.19'
url: https://raw.githubusercontent.com/api-evangelist/microsoft-projects/refs/heads/main/apis.yml
apis:
  - name: Microsoft Project for the Web API
    description: >-
      REST API for managing projects, tasks, resources, and assignments in Microsoft
      Project for the web.
    image: https://www.microsoft.com/en-us/microsoft-365/project/project-management-software
    humanUrl: https://docs.microsoft.com/en-us/project/
    baseUrl: https://graph.microsoft.com/v1.0/
    tags:
      - Assignments
      - Collaboration
      - Projects
      - Resources
      - Tasks
    properties:
      - type: X-documentation
        url: https://docs.microsoft.com/en-us/graph/api/resources/project-rome-overview
      - type: X-openapi
        url: https://developer.microsoft.com/en-us/graph/docs/api-reference/v1.0/resources/project
      - type: X-authentication
        url: https://docs.microsoft.com/en-us/graph/auth/
      - type: X-rate-limits
        url: https://docs.microsoft.com/en-us/graph/throttling
    contact:
      - FN: Microsoft Graph Support
        email: [email protected]
        url: https://developer.microsoft.com/en-us/graph/support
  - name: Microsoft Project Online API
    description: >-
      REST API for Microsoft Project Online, providing access to project data, timesheets,
      and enterprise project management features.
    image: https://www.microsoft.com/en-us/microsoft-365/project/project-management-software
    humanUrl: https://docs.microsoft.com/en-us/project/project-online
    baseUrl: https://{tenant}.sharepoint.com/sites/pwa/_api/ProjectServer/
    tags:
      - Enterprise
      - Portfolio
      - Project-Online
      - Reporting
      - Timesheets
    properties:
      - type: X-documentation
        url: https://docs.microsoft.com/en-us/previous-versions/office/project-javascript-api/jj712820(v=office.15)
      - type: X-openapi
        url: https://docs.microsoft.com/en-us/openspecs/sharepoint_protocols/ms-pjsoi/
      - type: X-authentication
        url: https://docs.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
      - type: X-sdk
        url: https://docs.microsoft.com/en-us/project/api/project-csom-overview
    contact:
      - FN: Project Online Support
        email: [email protected]
        url: https://support.microsoft.com/project
  - name: Microsoft Project Desktop CSOM API
    description: >-
      Client-side object model for programmatically interacting with Microsoft Project
      desktop applications.
    image: https://www.microsoft.com/en-us/microsoft-365/project/project-management-software
    humanUrl: https://docs.microsoft.com/en-us/office/client-developer/project/
    baseUrl: N/A
    tags:
      - Add-Ins
      - Automation
      - Csom
      - Desktop
      - Vba
    properties:
      - type: X-documentation
        url: https://docs.microsoft.com/en-us/office/client-developer/project/project-programming-references
      - type: X-sdk
        url: https://docs.microsoft.com/en-us/visualstudio/vsto/office-solutions-development-overview-vsto
      - type: X-samples
        url: https://github.com/OfficeDev/Project-Samples
    contact:
      - FN: Office Developer Support
        email: [email protected]
        url: https://developer.microsoft.com/en-us/office
maintainers:
  - FN: Kin Lane
    email: [email protected]
tags:
  - Collaboration
  - Enterprise
  - Microsoft
  - Portfolio-Management
  - Project-Management
  - Resources
  - Tasks
include: []
common:
  - type: X-portal
    url: https://developer.microsoft.com/
  - type: X-pricing
    url: https://www.microsoft.com/en-us/microsoft-365/project/compare-microsoft-project-management-software
  - type: X-status
    url: https://status.cloud.microsoft/
  - type: X-blog
    url: https://techcommunity.microsoft.com/t5/project-blog/bg-p/ProjectBlog
  - type: X-terms-of-service
    url: https://www.microsoft.com/en-us/legal/terms-of-use
  - type: X-privacy-policy
    url: https://privacy.microsoft.com/en-us/privacystatement