Microsoft 365 Copilot

Microsoft 365 Copilot is an AI-powered productivity tool that combines large language models (LLMs) with Microsoft 365 apps and business data to enhance creativity, productivity, and skills across Microsoft 365 applications.

Microsoft 365 Copilot publishes 7 APIs on the APIs.io network, including Connectors API, External Items API, Search API, and 4 more. Tagged areas include Artificial Intelligence, Copilot, Enterprise, LLM, and Microsoft 365.

Microsoft 365 Copilot’s developer surface includes authentication, developer portal, support, engineering blog, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

51.8/100 developing ▬ flat Agent 29/100 agent ready saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs 31 Agent Skills

Artificial Intelligence Copilot Enterprise LLM Microsoft 365 Natural Language Processing Productivity

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 51.8/100 · developing

Contract Quality 9.1 / 19

Developer Ergonomics 10.6 / 15

Access Clarity 7.1 / 15

Operational Transparency 4.1 / 10

Contract Governance 0.0 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.1 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/microsoft-365-copilot: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

Microsoft Copilot Studio API

Microsoft Copilot Studio allows developers to create, customize, and extend Copilot experiences with custom plugins and connectors to integrate business-specific data and workfl...

Microsoft 365 Copilot Extensibility API

API for extending Microsoft 365 Copilot with custom skills, plugins, and connectors to integrate third-party services and enterprise data sources.

Azure OpenAI Service API

Azure OpenAI Service provides REST API access to OpenAI's language models, which power Microsoft 365 Copilot's AI capabilities with enterprise-grade security and compliance.

Microsoft 365 Copilot Connectors API

The Connectors API from Microsoft 365 Copilot — 3 operation(s) for connectors.

Microsoft 365 Copilot External Items API

The External Items API from Microsoft 365 Copilot — 1 operation(s) for external items.

Microsoft 365 Copilot Search API

The Search API from Microsoft 365 Copilot — 1 operation(s) for search.

Microsoft 365 Copilot User Content API

int-reference

AGENT SKILL

list-kinds

AGENT SKILL

list-topics

AGENT SKILL

Scroll for all 24

Pricing Plans 1

Published pricing tiers and plan structures.

Microsoft 365 Copilot Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Microsoft 365 Copilot Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Microsoft 365 Copilot Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Microsoft 365 Copilot Authentication

oauth2 · 1 scheme

SECURITY

Microsoft 365 Copilot Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Microsoft 365 Copilot Scopes

7 scopes · authorizationCode/clientCredentials

7 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Microsoft 365 Copilot Agentic Access

13 operations · 6 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

DeveloperPortal

DeveloperPortal

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkills

AgentSkills

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

name: Microsoft 365 Copilot
description: Microsoft 365 Copilot is an AI-powered productivity tool that combines large language models (LLMs) with Microsoft
  365 apps and business data to enhance creativity, productivity, and skills across Microsoft 365 applications.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.microsoft.com/en-us/microsoft-365/copilot/copilot-logo.png
created: '2024-01-15'
modified: '2026-05-19'
specificationVersion: '0.23'
url: https://www.microsoft.com/en-us/microsoft-365/copilot/apis.json
apis:
- name: Microsoft Copilot Studio API
  description: Microsoft Copilot Studio allows developers to create, customize, and extend Copilot experiences with custom
    plugins and connectors to integrate business-specific data and workflows.
  image: https://www.microsoft.com/en-us/copilot/studio-icon.png
  humanURL: https://www.microsoft.com/en-us/microsoft-copilot/microsoft-copilot-studio
  baseURL: https://api.powerplatform.com/
  tags:
  - AI Development
  - Automation
  - Custom Plugins
  - Low-Code
  tags_raw:
  - AI Development
  - Automation
  - Custom Plugins
  - Low Code
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/microsoft-copilot-studio/
  - type: GettingStarted
    url: https://learn.microsoft.com/en-us/microsoft-copilot-studio/fundamentals-get-started
  - type: Plugin Development
    url: https://learn.microsoft.com/en-us/microsoft-copilot-studio/copilot-plugins-overview
  - type: Integrations
    url: https://learn.microsoft.com/en-us/connectors/
  - type: Tutorials
    url: https://learn.microsoft.com/en-us/microsoft-copilot-studio/tutorials
- name: Microsoft 365 Copilot Extensibility API
  description: API for extending Microsoft 365 Copilot with custom skills, plugins, and connectors to integrate third-party
    services and enterprise data sources.
  image: https://www.microsoft.com/en-us/microsoft-365/copilot/extensibility-icon.png
  humanURL: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/
  baseURL: https://api.microsoft365.com/copilot/v1
  tags:
  - Custom Skills
  - Extensibility
  - Integration
  - Plugins
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/
  - type: Plugin Manifest
    url: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/create-plugin
  - type: Teams Message Extensions
    url: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/build-message-extensions
  - type: API Plugins
    url: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/api-plugins
  - type: Examples
    url: https://github.com/microsoft/copilot-plugins-samples
- name: Azure OpenAI Service API
  description: Azure OpenAI Service provides REST API access to OpenAI's language models, which power Microsoft 365 Copilot's
    AI capabilities with enterprise-grade security and compliance.
  image: https://azure.microsoft.com/en-us/services/openai/openai-icon.png
  humanURL: https://azure.microsoft.com/en-us/products/ai-services/openai-service
  baseURL: https://{resource-name}.openai.azure.com/
  tags:
  - Artificial Intelligence
  - Azure
  - GPT
  - Language Models
  - Machine Learning
  tags_raw:
  - AI
  - Azure
  - GPT
  - Language Models
  - Machine Learning
  - Machine-Learning
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/ai-services/openai/
  - type: APIReference
    url: https://learn.microsoft.com/en-us/azure/ai-services/openai/reference
  - type: GettingStarted
    url: https://learn.microsoft.com/en-us/azure/ai-services/openai/quickstart
  - type: Pricing
    url: https://azure.microsoft.com/en-us/pricing/details/cognitive-services/openai-service/
  - type: Models
    url: https://learn.microsoft.com/en-us/azure/ai-services/openai/concepts/models
- aid: microsoft-365-copilot:microsoft-365-copilot-connectors-api
  name: Microsoft 365 Copilot Connectors API
  description: The Connectors API from Microsoft 365 Copilot — 3 operation(s) for connectors.
  humanURL: https://developer.microsoft.com/en-us/graph
  baseURL: https://graph.microsoft.com/v1.0
  tags:
  - Connectors
  properties:
  - type: OpenAPI
    url: openapi/microsoft-365-copilot-connectors-api-openapi.yml
  - type: Documentation
    url: https://docs.microsoft.com/en-us/graph/overview
  - type: Authentication
    url: https://docs.microsoft.com/en-us/graph/auth/
  - type: SDKs
    url: https://docs.microsoft.com/en-us/graph/sdks/sdks-overview
  - type: ChangeLog
    url: https://developer.microsoft.com/en-us/graph/changelog
- aid: microsoft-365-copilot:microsoft-365-copilot-external-items-api
  name: Microsoft 365 Copilot External Items API
  description: The External Items API from Microsoft 365 Copilot — 1 operation(s) for external items.
  humanURL: https://developer.microsoft.com/en-us/graph
  baseURL: https://graph.microsoft.com/v1.0
  tags:
  - External Items
  properties:
  - type: OpenAPI
    url: openapi/microsoft-365-copilot-external-items-api-openapi.yml
  - type: Documentation
    url: https://docs.microsoft.com/en-us/graph/overview
  - type: Authentication
    url: https://docs.microsoft.com/en-us/graph/auth/
  - type: SDKs
    url: https://docs.microsoft.com/en-us/graph/sdks/sdks-overview
  - type: ChangeLog
    url: https://developer.microsoft.com/en-us/graph/changelog
- aid: microsoft-365-copilot:microsoft-365-copilot-search-api
  name: Microsoft 365 Copilot Search API
  description: The Search API from Microsoft 365 Copilot — 1 operation(s) for search.
  humanURL: https://developer.microsoft.com/en-us/graph
  baseURL: https://graph.microsoft.com/v1.0
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/microsoft-365-copilot-search-api-openapi.yml
  - type: Documentation
    url: https://docs.microsoft.com/en-us/graph/overview
  - type: Authentication
    url: https://docs.microsoft.com/en-us/graph/auth/
  - type: SDKs
    url: https://docs.microsoft.com/en-us/graph/sdks/sdks-overview
  - type: ChangeLog
    url: https://developer.microsoft.com/en-us/graph/changelog
- aid: microsoft-365-copilot:microsoft-365-copilot-user-content-api
  name: Microsoft 365 Copilot User Content API
  description: The User Content API from Microsoft 365 Copilot — 4 operation(s) for user content.
  humanURL: https://developer.microsoft.com/en-us/graph
  baseURL: https://graph.microsoft.com/v1.0
  tags:
  - User Content
  properties:
  - type: OpenAPI
    url: openapi/microsoft-365-copilot-user-content-api-openapi.yml
  - type: Documentation
    url: https://docs.microsoft.com/en-us/graph/overview
  - type: Authentication
    url: https://docs.microsoft.com/en-us/graph/auth/
  - type: SDKs
    url: https://docs.microsoft.com/en-us/graph/sdks/sdks-overview
  - type: ChangeLog
    url: https://developer.microsoft.com/en-us/graph/changelog
common:
- type: Website
  url: https://www.microsoft.com/
- type: AgenticAccess
  url: agentic-access/microsoft-365-copilot-agentic-access.yml
- type: DomainSecurity
  url: security/microsoft-365-copilot-domain-security.yml
- type: Authentication
  url: authentication/microsoft-365-copilot-authentication.yml
- type: OAuthScopes
  url: scopes/microsoft-365-copilot-scopes.yml
- type: LinkedIn
  url: https://www.linkedin.com/showcase/copilot-for-microsoft-365
- type: Portal
  url: https://portal.azure.com/
- type: DeveloperPortal
  url: https://developer.microsoft.com/
- type: TermsOfService
  url: https://www.microsoft.com/en-us/legal/terms-of-use
- type: PrivacyPolicy
  url: https://privacy.microsoft.com/en-us/privacystatement
- type: Support
  url: https://support.microsoft.com/
- type: Blog
  url: https://www.microsoft.com/en-us/microsoft-365/blog/
- type: StatusPage
  url: https://status.azure.com/
- type: GitHubOrganization
  url: https://github.com/microsoft
- type: Integrations
  url: https://www.microsoft.com/en-us/marketplace
- name: Agent Skills
  url: https://github.com/microsoft/skills-for-copilot-studio
  type: AgentSkills
integrations:
- name: Microsoft
- name: Two people looking at a computer.
- name: This is placeholder text for
- name: IDC
- name: Nationwide
- name: RSA company
- name: Teleperformance
- name: A woman smiling at a laptop
- name: A man holding a laptop.
maintainers:
- name: Microsoft
  email: support@microsoft.com
  url: https://www.microsoft.com/
tags:
- Artificial Intelligence
- Copilot
- Enterprise
- LLM
- Microsoft 365
- Natural Language Processing
- Productivity
tags_raw:
- Artificial Intelligence
- Copilot
- Enterprise
- LLM
- Microsoft 365
- Natural Language Processing
- Productivity
- Microsoft-365
x-parent: microsoft-365
x-relationship: product

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