Microsoft Yammer

APIs for Yammer (now Viva Engage) enterprise social networking platform providing access to messages, groups, users, and networks.

Microsoft Yammer publishes 9 APIs on the APIs.io network, including Files API, Groups API, Messages API, and 6 more. Tagged areas include Enterprise Social, Microsoft, Social Networking, Viva Engage, and Yammer.

Microsoft Yammer’s developer surface includes authentication, developer portal, support, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.5/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

10 APIs

Enterprise SocialMicrosoftSocial NetworkingViva EngageYammer

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 41.5/100 · thin

Contract Quality 13.4 / 25

Developer Ergonomics 4.8 / 20

Commercial Clarity 12.1 / 20

Operational Transparency 4.8 / 13

Governance 0.0 / 12

Discoverability 6.5 / 10

Agent readiness — 31/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/microsoft-yammer: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 10

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

Yammer REST API

The Yammer REST API (now Viva Engage) provides access to enterprise social networking features including messages, groups, users, and networks. Developers can post messages, man...

Microsoft Yammer Files API

The Files API from Microsoft Yammer — 1 operation(s) for files.

Microsoft Yammer Groups API

The Groups API from Microsoft Yammer — 2 operation(s) for groups.

Microsoft Yammer Messages API

The Messages API from Microsoft Yammer — 12 operation(s) for messages.

Microsoft Yammer Networks API

The Networks API from Microsoft Yammer — 1 operation(s) for networks.

Microsoft Yammer Search API

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

Microsoft Yammer Subscriptions API

The Subscriptions API from Microsoft Yammer — 2 operation(s) for subscriptions.

Microsoft Yammer Threads API

The Threads API from Microsoft Yammer — 1 operation(s) for threads.

Microsoft Yammer Topics API

The Topics API from Microsoft Yammer — 1 operation(s) for topics.

Microsoft Yammer Users API

The Users API from Microsoft Yammer — 5 operation(s) for users.

Scroll for all 10

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Viva Engage (Yammer) Legacy REST API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Microsoft Yammer Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Microsoft Yammer Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Scopes 1

OAuth scopes governing access to this provider's APIs.

Microsoft Yammer Scopes

2 scopes · authorizationCode

2 scopes

SCOPES

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

OAuthScopes

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

LinkedIn

Source (apis.yml)

aid: microsoft-yammer
name: Microsoft Yammer
description: APIs for Yammer (now Viva Engage) enterprise social networking platform providing access to messages, groups,
  users, and networks.
type: Index
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/microsoft-yammer.png
tags:
- Enterprise Social
- Microsoft
- Social Networking
- Viva Engage
- Yammer
created: '2024-01-01'
modified: '2026-04-28'
specificationVersion: '0.19'
url: https://raw.githubusercontent.com/api-evangelist/microsoft-yammer/refs/heads/main/apis.yml
apis:
- aid: microsoft-yammer:rest-api
  name: Yammer REST API
  tags:
  - Enterprise Social
  - Social Networking
  - Viva Engage
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://www.yammer.com/api/v1/
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  properties:
  - url: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
    type: Documentation
  description: The Yammer REST API (now Viva Engage) provides access to enterprise social networking features including messages,
    groups, users, and networks. Developers can post messages, manage group memberships, search content, and integrate Yammer's
    social collaboration features into custom applications.
- aid: microsoft-yammer:microsoft-yammer-files-api
  name: Microsoft Yammer Files API
  description: The Files API from Microsoft Yammer — 1 operation(s) for files.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-files-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-groups-api
  name: Microsoft Yammer Groups API
  description: The Groups API from Microsoft Yammer — 2 operation(s) for groups.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-groups-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-messages-api
  name: Microsoft Yammer Messages API
  description: The Messages API from Microsoft Yammer — 12 operation(s) for messages.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-messages-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-networks-api
  name: Microsoft Yammer Networks API
  description: The Networks API from Microsoft Yammer — 1 operation(s) for networks.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Networks
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-networks-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-search-api
  name: Microsoft Yammer Search API
  description: The Search API from Microsoft Yammer — 1 operation(s) for search.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-search-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-subscriptions-api
  name: Microsoft Yammer Subscriptions API
  description: The Subscriptions API from Microsoft Yammer — 2 operation(s) for subscriptions.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-subscriptions-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-threads-api
  name: Microsoft Yammer Threads API
  description: The Threads API from Microsoft Yammer — 1 operation(s) for threads.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Threads
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-threads-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-topics-api
  name: Microsoft Yammer Topics API
  description: The Topics API from Microsoft Yammer — 1 operation(s) for topics.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Topics
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-topics-api-openapi.yml
- aid: microsoft-yammer:microsoft-yammer-users-api
  name: Microsoft Yammer Users API
  description: The Users API from Microsoft Yammer — 5 operation(s) for users.
  humanURL: https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits
  baseURL: https://www.yammer.com/api/v1/
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/microsoft-yammer-users-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/microsoft-yammer-agentic-access.yml
- type: DomainSecurity
  url: security/microsoft-yammer-domain-security.yml
- type: Authentication
  url: authentication/microsoft-yammer-authentication.yml
- type: OAuthScopes
  url: scopes/microsoft-yammer-scopes.yml
- type: GitHubOrganization
  url: https://github.com/yammer
- type: LinkedIn
  url: https://www.linkedin.com/company/yammer-inc
- type: Portal
  url: https://engage.cloud.microsoft/
- type: Authentication
  url: https://learn.microsoft.com/en-us/rest/api/yammer/oauth-2
- 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/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com