Microsoft Project

Microsoft Project Online CSOM API

Client-Side Object Model API for programmatic access to Project Online and Project Server. Provides .NET, Silverlight, Windows Phone, and JavaScript interfaces for CRUD operations on projects, tasks, resources, assignments, custom fields, lookup tables, and enterprise project types.

GitHub

Documentation

📖
Documentation
https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
📖
GettingStarted
https://learn.microsoft.com/en-us/office/client-developer/project/getting-started-with-the-project-server-csom-and-.net

Other Resources

🔗
SDKs
.NET SDK
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/microsoft-project/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: microsoft-project:csom-api
name: Microsoft Project Online CSOM API
description: Client-Side Object Model API for programmatic access to Project Online and Project Server.
  Provides .NET, Silverlight, Windows Phone, and JavaScript interfaces for CRUD operations on projects,
  tasks, resources, assignments, custom fields, lookup tables, and enterprise project types.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
baseURL: https://{tenant}.sharepoint.com/sites/pwa/_api/ProjectServer
tags:
- .NET
- Client Library
- CSOM
- JavaScript
- Project
- Resources
- Task
tags_raw:
- .NET
- Client Library
- CSOM
- JavaScript
- Projects
- Resources
- Tasks
properties:
- type: Documentation
  url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: SDKs
  url: https://www.nuget.org/packages/Microsoft.SharePointOnline.CSOM/
  title: .NET SDK
- type: GettingStarted
  url: https://learn.microsoft.com/en-us/office/client-developer/project/getting-started-with-the-project-server-csom-and-.net