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Microsoft Project
Microsoft Project is a project management software product developed by Microsoft. It provides tools for developing plans, assigning resources to tasks, tracking progress, managing budgets, and analyzing workloads. Microsoft Project offers REST APIs via SharePoint/Project Online, a Client-Side Object Model (CSOM), OData reporting feeds, and JavaScript APIs for building add-ins and integrations.
Microsoft Project is listed with 21 APIs on the APIs.io network, including Assignments API, Calendars API, Custom Fields API, and 18 more. Tagged areas include Budgeting, Gantt Charts, Microsoft, Project Management, and Resource Management.
The Microsoft Project catalog on APIs.io includes 2 JSON-LD contexts and 3 Spectral governance rulesets.
Microsoft Project’s developer surface includes documentation, changelog, authentication, developer portal, engineering blog, pricing, support, and 45 more developer resources.
21 APIs12 Features8 Use Cases
On this page
Kin Score FAQ ☀ Get your badge Standards 2
APIs 21
Postman 13
Open Collections 13
Pricing
Pricing Plans 1
Rate Limits 1
FinOps 1
Features 12
Vocabularies 2
Spectral Rules 3
JSON Schema 7
JSON Structure 7
Examples 7
Security Posture 4
Scopes 1
Agentic Access 1
Use Cases 8
Integrations 10
Resources 52
apis.yml
45 Operational Transparency
0 Create-or-Update Ergonomics
Composite quality — 53.7/100 · developing
Agent readiness — 27/100 · agent aware
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons ; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
measured — observed by APIs.io (published)
measured — observed by APIs.io (declared)
Individual APIs this provider publishes, each with its own machine-readable definition.
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Ready-to-run Postman collections for exercising this provider's APIs.
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Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
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Microsoft Project API pricing
Not yet checked against Microsoft Project's own pricing page. Compiled by API Evangelist on 2026-05-05 from www.microsoft.com/en-us/microsoft-365/project/compare-mic... ; confirm before you rely on a figure. A free plan or tier is listed.
Plan Price
Microsoft Planner (included with Microsoft 365) freemium
— Planner Plan 1 subscription
$10.00 per per-user license / month Planner and Project Plan 3 subscription
$30.00 per per-user license / month Project Standard 2024 (one-time) subscription
$679.99 per one-time license / year Project Professional 2024 (one-time) subscription
$1129.99 per one-time license / year Project Plan 5 (End of Sale) enterprise
—
Plan details, limits and sources →
Rate limits
SharePoint Online dynamic throttling: Dynamic per-user / per-tenant throttling based on resource consumption; no published per-second cap. varies Power Platform requests (Microsoft 365 / Project license): 6000 requests per day Power Platform non-licensed pool (Power Apps / Automate, Project tenant): 25000 requests per day
Compiled by API Evangelist, not yet checked against Microsoft Project's documentation. Rate-limit details →
Billed by: seat-month · FinOps profile →
Published pricing tiers and plan structures.
Documented rate limits and quota policies.
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
Cost, billing, and metering signals for API financial operations.
Notable capabilities this provider offers.
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JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral governance rulesets for linting and validating these APIs.
Standalone JSON Schema definitions for this provider's data models.
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JSON Structure definitions describing this provider's data shapes.
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Example request and response payloads for these APIs.
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Authentication, domain security, vulnerability disclosure, and trust-center signals.
OAuth scopes governing access to this provider's APIs.
Recommended x-agentic-access execution contracts for AI agents.
What developers build with this provider.
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Pre-built integrations with other platforms and tools.
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Get Started 4
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 10
Pagination, idempotency, versioning, errors, and events
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Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 8
Authentication, authorization, and security posture
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Learn 1
Tutorials, courses, talks, and written guidance
Operate 6
Status, limits, changes, and where to get help
Commercial 8
Pricing, plans, and the legal terms of use
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Company 3
The organization behind the API
Other 3
Properties that don't map to a standard resource type
Source (apis.yml)
aid: microsoft-project
name: Microsoft Project
description: Microsoft Project is a project management software product developed by Microsoft. It provides tools for developing
plans, assigning resources to tasks, tracking progress, managing budgets, and analyzing workloads. Microsoft Project offers
REST APIs via SharePoint/Project Online, a Client-Side Object Model (CSOM), OData reporting feeds, and JavaScript APIs for
building add-ins and integrations.
type: Index
deliveryModel:
model: saas
license_evidence:
not_product:
- officedev/project-samples
open_source: unknown
commercial: true
callable_host: true
label: Hosted service · you call their endpoint
confidence: low
source:
- openapi
- pricing
- repository-not-product
generated: '2026-09-25'
method: derived
accessModel:
pricing: freemium
onboarding: self-serve
trial: false
try_now: true
public: false
gated: none
gated_source:
- onboarding
label: Freemium · Self-serve signup
confidence: medium
source:
- plans
- authentication
- security
generated: '2026-11-06'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/microsoft-project.png
tags:
- Budgeting
- Gantt Charts
- Microsoft
- Project Management
- Resource Management
- Scheduling
- Task Management
- Project Portfolio Management
tags_raw:
- Budgeting
- Gantt Charts
- Microsoft
- Project Management
- Resource Management
- Scheduling
- Task Management
- Project Portfolio Management
url: https://developer.microsoft.com/en-us/microsoft-365
created: '2024-01-15'
modified: '2026-05-19'
specificationVersion: '0.23'
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
common:
- type: Spectral
url: rules/microsoft-project-spectral-rules.yml
- type: Spectral
url: rules/microsoft-project-rules.yml
- type: Spectral
url: rules/microsoft-project-jsonschema-spectral-rules.yml
- type: JSONLD
url: json-ld/microsoft-project-context.jsonld
- type: Vocabulary
url: vocabulary/microsoft-project-vocabulary.yml
- type: DataModel
url: data-model/microsoft-project-data-model.yml
- type: Compliance
url: https://www.microsoft.com/en-us/trust-center
- type: ErrorCatalog
url: errors/microsoft-project-problem-types.yml
- type: Conformance
url: conformance/microsoft-project-conformance.yml
- type: LLMsTxt
url: llms/microsoft-project-llms.txt
- type: SecurityTxt
url: well-known/microsoft-project-security.txt
- type: WellKnown
url: well-known/microsoft-project-well-known.yml
- type: Hosts
url: hosts/microsoft-project-hosts.yml
- type: Vendors
url: vendors/microsoft-project-vendors.yml
- type: Security
url: https://www.microsoft.com/security
- type: Leadership
url: https://news.microsoft.com/leadership
- type: Documentation
url: https://learn.microsoft.com/docs/
- type: ChangeLog
url: https://developer.microsoft.com/en-us/changelog
- type: TrustCenter
url: security/microsoft-project-trust-center.yml
- type: Plans
url: plans/microsoft-project-plans-pricing.yml
- type: RateLimits
url: rate-limits/microsoft-project-rate-limits.yml
- type: FinOps
url: finops/microsoft-project-finops.yml
- 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
- type: StatusPage
url: https://status.microsoft.com/
- type: Website
url: https://www.microsoft.com/
- type: PostmanWorkspace
url: https://www.postman.com/kinlaneapi/microsoft-project/overview
- type: AgenticAccess
url: agentic-access/microsoft-project-agentic-access.yml
- type: VulnerabilityDisclosure
url: security/microsoft-project-vulnerability-disclosure.yml
- type: DomainSecurity
url: security/microsoft-project-domain-security.yml
- type: Authentication
url: authentication/microsoft-project-authentication.yml
- type: OAuthScopes
url: scopes/microsoft-project-scopes.yml
- type: Portal
url: https://developer.microsoft.com/en-us/microsoft-365
- type: DeveloperPortal
url: https://learn.microsoft.com/en-us/office/client-developer/project/project-programming-tasks
- type: Blog
url: https://techcommunity.microsoft.com/t5/project-blog/bg-p/ProjectBlog
- type: TermsOfService
url: https://www.microsoft.com/en-us/legal/terms-of-use
- type: PrivacyPolicy
url: https://privacy.microsoft.com/en-us/privacystatement
- type: Pricing
url: https://www.microsoft.com/en-us/microsoft-365/project/compare-microsoft-project-management-software
- type: Support
url: https://support.microsoft.com/
- type: GitHubRepository
url: https://github.com/OfficeDev/Project-Samples
- type: StackOverflow
url: https://stackoverflow.com/questions/tagged/ms-project
- type: Training
url: https://support.microsoft.com/en-us/project
- type: GettingStarted
url: https://learn.microsoft.com/en-us/office/client-developer/project/getting-started-developing-project-server-workflows
- type: GitHubOrganization
url: https://github.com/OfficeDev
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Accelerator
title: Project Accelerator
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Dataverse-Plugin-Sample
title: Dataverse Plugin Sample
- type: SpectralRules
url: rules/microsoft-project-spectral-rules.yml
- type: Vocabulary
url: vocabulary/microsoft-project-vocabulary.yaml
- type: Features
data:
- name: Gantt Charts
description: Visual timeline charts for project scheduling with task dependencies, critical path analysis, and milestone
tracking.
- name: Task Management
description: Create, assign, and track tasks with predecessors, successors, constraints, and deadlines.
- name: Resource Management
description: Assign resources to tasks, view workloads, and manage resource availability and capacity.
- name: Portfolio Management
description: Manage multiple projects as a portfolio with prioritization, budgeting, and resource allocation across projects.
- name: Budgeting and Cost Tracking
description: Track project costs, budgets, and earned value metrics for financial project management.
- name: Scheduling Engine
description: Automatic scheduling with task dependencies, resource leveling, and critical path calculation.
- name: Timesheets
description: Time tracking and approval workflows for resource hours and project progress reporting.
- name: Custom Fields
description: Define enterprise custom fields, lookup tables, and formulas for extended project metadata.
- name: Reporting and Dashboards
description: Pre-built and custom reports with Power BI integration for project, resource, and portfolio analytics.
- name: Workflow Automation
description: Demand management workflows for project proposals, approvals, and stage-gate governance.
- name: Collaboration
description: SharePoint-based project sites with document libraries, issue tracking, and team communication.
- name: Power Platform Integration
description: Integration with Power BI, Power Automate, and Power Apps for extended project management scenarios.
- type: UseCases
data:
- name: IT Project Management
description: Plan and track IT infrastructure, software development, and digital transformation projects.
- name: Construction Project Planning
description: Schedule construction phases, manage subcontractors, and track material costs.
- name: Product Development
description: Coordinate product development timelines, milestones, and cross-functional team resources.
- name: Portfolio Optimization
description: Evaluate and prioritize project portfolios based on strategic alignment, ROI, and resource constraints.
- name: Resource Capacity Planning
description: Forecast resource demand, identify bottlenecks, and optimize resource allocation across projects.
- name: Program Management
description: Manage interdependent projects as programs with shared resources and coordinated timelines.
- name: Agile Project Tracking
description: Track agile sprints, backlogs, and team velocity alongside traditional waterfall schedules.
- name: Compliance Reporting
description: Generate audit trails and compliance reports for project governance and regulatory requirements.
- type: Integrations
data:
- name: Microsoft Teams
description: View and manage project tasks directly within Microsoft Teams channels and tabs.
- name: Power BI
description: Connect to Project Online data for interactive dashboards and portfolio analytics.
- name: SharePoint
description: SharePoint-based project sites for document management, collaboration, and task synchronization.
- name: Microsoft 365
description: Deep integration with Outlook, Excel, Word, and other Microsoft 365 applications.
- name: Power Automate
description: Automate project workflows, notifications, and approvals using Power Automate flows.
- name: Power Apps
description: Build custom project management applications using Power Apps with Project data.
- name: Azure DevOps
description: Connect project schedules with Azure DevOps work items for software development projects.
- name: Microsoft Planner
description: Integrate lightweight task planning in Planner with enterprise project management in Project.
- name: Dataverse
description: Project for the web stores data in Microsoft Dataverse, enabling custom integrations and extensions.
- name: Excel
description: Export and import project data to Excel for custom analysis, reporting, and data manipulation.
apis:
- 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
- aid: microsoft-project:odata-reporting-api
name: Microsoft Project OData Reporting API
description: OData-based reporting feed for read-only access to Project Server and Project Online reporting data. Provides
access to project, task, resource, assignment, and timesheet reporting tables and views via the ProjectData service endpoint.
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/project-server-2013-architecture
baseURL: https://{tenant}.sharepoint.com/sites/pwa/_api/ProjectData
tags:
- OData
- Project
- Reporting
- Resources
- Task
tags_raw:
- OData
- Projects
- Reporting
- Resources
- Tasks
properties:
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/project-server-2013-architecture
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- aid: microsoft-project:javascript-api
name: Microsoft Project JavaScript API
description: JavaScript API for building Office Add-ins that extend Microsoft Project desktop client. Enables reading task,
resource, and view data from the active project within a task pane add-in.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://learn.microsoft.com/en-us/office/dev/add-ins/project/project-add-ins
baseURL: https://appsforoffice.microsoft.com/lib/1/hosted/office.js
tags:
- Add-Ins
- JavaScript
- Office
- Task Pane
properties:
- type: Documentation
url: https://learn.microsoft.com/en-us/office/dev/add-ins/project/project-add-ins
- type: GettingStarted
url: https://learn.microsoft.com/en-us/office/dev/add-ins/quickstarts/project-quickstart
- type: APIReference
url: https://learn.microsoft.com/en-us/javascript/api/office/office.context
- type: CodeExamples
url: https://developer.microsoft.com/en-us/microsoft-365/gallery/?filterBy=Project,Samples
- aid: microsoft-project:microsoft-project-assignments-api
name: Microsoft Project Assignments API
description: Manage resource assignments to tasks
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:
- Assignments
properties:
- type: OpenAPI
url: openapi/microsoft-project-assignments-api-openapi.yml
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: APIReference
url: https://learn.microsoft.com/en-us/office/client-developer/project/javascript-library-and-rest-reference-for-project-server-2013
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Samples/tree/main/O365-Project-Online-REST-Samples
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Add-in-REST-BasicDataOperations
- type: JSONSchema
url: json-schema/rest-api-project-schema.json
- type: JSONSchema
url: json-schema/rest-api-task-schema.json
- type: JSONSchema
url: json-schema/rest-api-enterprise-resource-schema.json
- type: JSONSchema
url: json-schema/rest-api-assignment-schema.json
- type: JSONSchema
url: json-schema/rest-api-calendar-schema.json
- type: JSONSchema
url: json-schema/rest-api-custom-field-schema.json
- type: JSONSchema
url: json-schema/rest-api-time-sheet-schema.json
- type: JSONStructure
url: json-structure/rest-api-project-structure.json
- type: JSONStructure
url: json-structure/rest-api-task-structure.json
- type: JSONStructure
url: json-structure/rest-api-enterprise-resource-structure.json
- type: JSONStructure
url: json-structure/rest-api-assignment-structure.json
- type: JSONStructure
url: json-structure/rest-api-calendar-structure.json
- type: JSONStructure
url: json-structure/rest-api-custom-field-structure.json
- type: JSONStructure
url: json-structure/rest-api-time-sheet-structure.json
- type: JSONLD
url: json-ld/microsoft-project-rest-api-context.jsonld
- type: Examples
url: examples/rest-api-project-example.json
- type: Examples
url: examples/rest-api-task-example.json
- type: Examples
url: examples/rest-api-enterprise-resource-example.json
- type: Examples
url: examples/rest-api-assignment-example.json
- type: Examples
url: examples/rest-api-calendar-example.json
- type: Examples
url: examples/rest-api-custom-field-example.json
- type: Examples
url: examples/rest-api-time-sheet-example.json
- aid: microsoft-project:microsoft-project-calendars-api
name: Microsoft Project Calendars API
description: Manage enterprise calendars
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:
- Calendar
tags_raw:
- Calendars
properties:
- type: OpenAPI
url: openapi/microsoft-project-calendars-api-openapi.yml
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: APIReference
url: https://learn.microsoft.com/en-us/office/client-developer/project/javascript-library-and-rest-reference-for-project-server-2013
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Samples/tree/main/O365-Project-Online-REST-Samples
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Add-in-REST-BasicDataOperations
- type: JSONSchema
url: json-schema/rest-api-project-schema.json
- type: JSONSchema
url: json-schema/rest-api-task-schema.json
- type: JSONSchema
url: json-schema/rest-api-enterprise-resource-schema.json
- type: JSONSchema
url: json-schema/rest-api-assignment-schema.json
- type: JSONSchema
url: json-schema/rest-api-calendar-schema.json
- type: JSONSchema
url: json-schema/rest-api-custom-field-schema.json
- type: JSONSchema
url: json-schema/rest-api-time-sheet-schema.json
- type: JSONStructure
url: json-structure/rest-api-project-structure.json
- type: JSONStructure
url: json-structure/rest-api-task-structure.json
- type: JSONStructure
url: json-structure/rest-api-enterprise-resource-structure.json
- type: JSONStructure
url: json-structure/rest-api-assignment-structure.json
- type: JSONStructure
url: json-structure/rest-api-calendar-structure.json
- type: JSONStructure
url: json-structure/rest-api-custom-field-structure.json
- type: JSONStructure
url: json-structure/rest-api-time-sheet-structure.json
- type: JSONLD
url: json-ld/microsoft-project-rest-api-context.jsonld
- type: Examples
url: examples/rest-api-project-example.json
- type: Examples
url: examples/rest-api-task-example.json
- type: Examples
url: examples/rest-api-enterprise-resource-example.json
- type: Examples
url: examples/rest-api-assignment-example.json
- type: Examples
url: examples/rest-api-calendar-example.json
- type: Examples
url: examples/rest-api-custom-field-example.json
- type: Examples
url: examples/rest-api-time-sheet-example.json
- aid: microsoft-project:microsoft-project-custom-fields-api
name: Microsoft Project Custom Fields API
description: Manage enterprise custom field definitions
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:
- Custom Fields
properties:
- type: OpenAPI
url: openapi/microsoft-project-custom-fields-api-openapi.yml
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: APIReference
url: https://learn.microsoft.com/en-us/office/client-developer/project/javascript-library-and-rest-reference-for-project-server-2013
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Samples/tree/main/O365-Project-Online-REST-Samples
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Add-in-REST-BasicDataOperations
- type: JSONSchema
url: json-schema/rest-api-project-schema.json
- type: JSONSchema
url: json-schema/rest-api-task-schema.json
- type: JSONSchema
url: json-schema/rest-api-enterprise-resource-schema.json
- type: JSONSchema
url: json-schema/rest-api-assignment-schema.json
- type: JSONSchema
url: json-schema/rest-api-calendar-schema.json
- type: JSONSchema
url: json-schema/rest-api-custom-field-schema.json
- type: JSONSchema
url: json-schema/rest-api-time-sheet-schema.json
- type: JSONStructure
url: json-structure/rest-api-project-structure.json
- type: JSONStructure
url: json-structure/rest-api-task-structure.json
- type: JSONStructure
url: json-structure/rest-api-enterprise-resource-structure.json
- type: JSONStructure
url: json-structure/rest-api-assignment-structure.json
- type: JSONStructure
url: json-structure/rest-api-calendar-structure.json
- type: JSONStructure
url: json-structure/rest-api-custom-field-structure.json
- type: JSONStructure
url: json-structure/rest-api-time-sheet-structure.json
- type: JSONLD
url: json-ld/microsoft-project-rest-api-context.jsonld
- type: Examples
url: examples/rest-api-project-example.json
- type: Examples
url: examples/rest-api-task-example.json
- type: Examples
url: examples/rest-api-enterprise-resource-example.json
- type: Examples
url: examples/rest-api-assignment-example.json
- type: Examples
url: examples/rest-api-calendar-example.json
- type: Examples
url: examples/rest-api-custom-field-example.json
- type: Examples
url: examples/rest-api-time-sheet-example.json
- aid: microsoft-project:microsoft-project-enterprise-project-types-api
name: Microsoft Project Enterprise Project Types API
description: Manage enterprise project type configurations
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:
- Enterprise Project Types
properties:
- type: OpenAPI
url: openapi/microsoft-project-enterprise-project-types-api-openapi.yml
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: APIReference
url: https://learn.microsoft.com/en-us/office/client-developer/project/javascript-library-and-rest-reference-for-project-server-2013
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Samples/tree/main/O365-Project-Online-REST-Samples
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Add-in-REST-BasicDataOperations
- type: JSONSchema
url: json-schema/rest-api-project-schema.json
- type: JSONSchema
url: json-schema/rest-api-task-schema.json
- type: JSONSchema
url: json-schema/rest-api-enterprise-resource-schema.json
- type: JSONSchema
url: json-schema/rest-api-assignment-schema.json
- type: JSONSchema
url: json-schema/rest-api-calendar-schema.json
- type: JSONSchema
url: json-schema/rest-api-custom-field-schema.json
- type: JSONSchema
url: json-schema/rest-api-time-sheet-schema.json
- type: JSONStructure
url: json-structure/rest-api-project-structure.json
- type: JSONStructure
url: json-structure/rest-api-task-structure.json
- type: JSONStructure
url: json-structure/rest-api-enterprise-resource-structure.json
- type: JSONStructure
url: json-structure/rest-api-assignment-structure.json
- type: JSONStructure
url: json-structure/rest-api-calendar-structure.json
- type: JSONStructure
url: json-structure/rest-api-custom-field-structure.json
- type: JSONStructure
url: json-structure/rest-api-time-sheet-structure.json
- type: JSONLD
url: json-ld/microsoft-project-rest-api-context.jsonld
- type: Examples
url: examples/rest-api-project-example.json
- type: Examples
url: examples/rest-api-task-example.json
- type: Examples
url: examples/rest-api-enterprise-resource-example.json
- type: Examples
url: examples/rest-api-assignment-example.json
- type: Examples
url: examples/rest-api-calendar-example.json
- type: Examples
url: examples/rest-api-custom-field-example.json
- type: Examples
url: examples/rest-api-time-sheet-example.json
- aid: microsoft-project:microsoft-project-event-handlers-api
name: Microsoft Project Event Handlers API
description: Manage event handler subscriptions
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:
- Event Handlers
properties:
- type: OpenAPI
url: openapi/microsoft-project-event-handlers-api-openapi.yml
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: APIReference
url: https://learn.microsoft.com/en-us/office/client-developer/project/javascript-library-and-rest-reference-for-project-server-2013
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Samples/tree/main/O365-Project-Online-REST-Samples
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Add-in-REST-BasicDataOperations
- type: JSONSchema
url: json-schema/rest-api-project-schema.json
- type: JSONSchema
url: json-schema/rest-api-task-schema.json
- type: JSONSchema
url: json-schema/rest-api-enterprise-resource-schema.json
- type: JSONSchema
url: json-schema/rest-api-assignment-schema.json
- type: JSONSchema
url: json-schema/rest-api-calendar-schema.json
- type: JSONSchema
url: json-schema/rest-api-custom-field-schema.json
- type: JSONSchema
url: json-schema/rest-api-time-sheet-schema.json
- type: JSONStructure
url: json-structure/rest-api-project-structure.json
- type: JSONStructure
url: json-structure/rest-api-task-structure.json
- type: JSONStructure
url: json-structure/rest-api-enterprise-resource-structure.json
- type: JSONStructure
url: json-structure/rest-api-assignment-structure.json
- type: JSONStructure
url: json-structure/rest-api-calendar-structure.json
- type: JSONStructure
url: json-structure/rest-api-custom-field-structure.json
- type: JSONStructure
url: json-structure/rest-api-time-sheet-structure.json
- type: JSONLD
url: json-ld/microsoft-project-rest-api-context.jsonld
- type: Examples
url: examples/rest-api-project-example.json
- type: Examples
url: examples/rest-api-task-example.json
- type: Examples
url: examples/rest-api-enterprise-resource-example.json
- type: Examples
url: examples/rest-api-assignment-example.json
- type: Examples
url: examples/rest-api-calendar-example.json
- type: Examples
url: examples/rest-api-custom-field-example.json
- type: Examples
url: examples/rest-api-time-sheet-example.json
- aid: microsoft-project:microsoft-project-lookup-tables-api
name: Microsoft Project Lookup Tables API
description: Manage lookup table definitions and entries
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:
- Lookup Tables
properties:
- type: OpenAPI
url: openapi/microsoft-project-lookup-tables-api-openapi.yml
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: APIReference
url: https://learn.microsoft.com/en-us/office/client-developer/project/javascript-library-and-rest-reference-for-project-server-2013
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Samples/tree/main/O365-Project-Online-REST-Samples
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Add-in-REST-BasicDataOperations
- type: JSONSchema
url: json-schema/rest-api-project-schema.json
- type: JSONSchema
url: json-schema/rest-api-task-schema.json
- type: JSONSchema
url: json-schema/rest-api-enterprise-resource-schema.json
- type: JSONSchema
url: json-schema/rest-api-assignment-schema.json
- type: JSONSchema
url: json-schema/rest-api-calendar-schema.json
- type: JSONSchema
url: json-schema/rest-api-custom-field-schema.json
- type: JSONSchema
url: json-schema/rest-api-time-sheet-schema.json
- type: JSONStructure
url: json-structure/rest-api-project-structure.json
- type: JSONStructure
url: json-structure/rest-api-task-structure.json
- type: JSONStructure
url: json-structure/rest-api-enterprise-resource-structure.json
- type: JSONStructure
url: json-structure/rest-api-assignment-structure.json
- type: JSONStructure
url: json-structure/rest-api-calendar-structure.json
- type: JSONStructure
url: json-structure/rest-api-custom-field-structure.json
- type: JSONStructure
url: json-structure/rest-api-time-sheet-structure.json
- type: JSONLD
url: json-ld/microsoft-project-rest-api-context.jsonld
- type: Examples
url: examples/rest-api-project-example.json
- type: Examples
url: examples/rest-api-task-example.json
- type: Examples
url: examples/rest-api-enterprise-resource-example.json
- type: Examples
url: examples/rest-api-assignment-example.json
- type: Examples
url: examples/rest-api-calendar-example.json
- type: Examples
url: examples/rest-api-custom-field-example.json
- type: Examples
url: examples/rest-api-time-sheet-example.json
- aid: microsoft-project:microsoft-project-phases-api
name: Microsoft Project Phases API
description: Manage workflow phases
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:
- Phases
properties:
- type: OpenAPI
url: openapi/microsoft-project-phases-api-openapi.yml
- type: Documentation
url: https://learn.microsoft.com/en-us/office/client-developer/project/client-side-object-model-csom-for-project-2013
- type: APIReference
url: https://learn.microsoft.com/en-us/office/client-developer/project/javascript-library-and-rest-reference-for-project-server-2013
- type: Authentication
url: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/authorization-and-authentication-of-sharepoint-add-ins
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Samples/tree/main/O365-Project-Online-REST-Samples
- type: CodeExamples
url: https://github.com/OfficeDev/Project-Add-in-REST-BasicDataOperations
- type: JSONSchema
url: json-schema/rest-api-project-schema.json
- type: JSONSchema
url: json-schema/rest-api-task-schema.json
- type: JSONSchema
url: json-schema/rest-api-enterprise-resource-schema.json
- type: JSONSchema
url: json-schema/rest-api-assignment-schema.json
- type: JSONSchema
url: json-schema/rest-api-calendar-schema.json
- type: JSONSchema
url: json-schema/rest-api-custom-field-schema.json
- type: JSONSchema
url: json-schema/rest-api-time-sheet-schema.json
- type: JSONStructure
url: json-structure/rest-api-project-structure.json
- type: JSONStructure
url: json-structure/rest-api-task-structure.json
- type: JSONStructure
url: json-structure/rest-api-enterprise-resource-structure.json
- type: JSONStructure
url: json-structure/rest-api-assignment-structure.json
- type: JSONStructure
url: json-structure/rest-api-calendar-structure.json
- type: JSONStructure
url: json-structure/rest-api-custom-field-structure.json
- type: JSONStructure
url: json-structure/rest-api-time-sheet-structure.json
- type: JSONLD
url: json-ld/microsoft-project-rest-api-context.jsonld
- type: Examples
url: examples/rest-api-project-example.json
- type: Examples
url: examples/rest-api-task-example.json
# --- truncated at 32 KB (53 KB total) ---
# Full source: https://artifacts.apis.io/microsoft-project/apis.yml
Microsoft Project API — frequently asked questions
Does Microsoft Project have an API?
Yes. APIs.io lists 21 APIs from Microsoft Project, including Microsoft Project Online CSOM API, Microsoft Project OData Reporting API and Microsoft Project JavaScript API, and 18 more.
Is there an OpenAPI specification for the Microsoft Project API?
Yes. APIs.io indexes 13 OpenAPI specifications for Microsoft Project, each linked for download from this page.
How do I authenticate with the Microsoft Project API?
Microsoft Project documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Microsoft Project Authentication.
How much does the Microsoft Project API cost?
APIs.io lists 6 pricing plans for Microsoft Project, with each plan's price, limits and inclusions under Pricing on this page.
Is the Microsoft Project API ready for AI agents?
Microsoft Project has a Kin Score of 53.7 out of 100 (developing) and an Agent Readiness score of 26.5 (agent-aware), scored by API Evangelist on 2026-11-06.
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