Microsoft Package

A collection of Microsoft package management APIs covering NuGet, Windows Package Manager (WinGet), Microsoft Store, and Azure Artifacts for managing and distributing software packages across Microsoft platforms.

Microsoft Package is listed with 8 APIs on the APIs.io network, including PackageContent API, Registration API, Search API, and 5 more. Tagged areas include Azure Artifacts, Developer Tools, Microsoft, NuGet, and Package Management.

The Microsoft Package catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Microsoft Package’s developer surface includes changelog, engineering blog, getting-started guide, documentation, authentication, developer portal, support, and 34 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

54.6/100 strong ▲ 19.7 Agent 29/100 agent aware saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

8 APIs

Azure ArtifactsDeveloper Tools Microsoft NuGet Package ManagementWinGet

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Open Source Ecosystem

AE-250

GET /query

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 54.6/100 · strong

Contract Quality 10.5 / 21

Developer Ergonomics 7.7 / 17

Access Clarity 9.4 / 17

Operational Transparency 6.3 / 11

Contract Governance 2.2 / 10

Discoverability 7.7 / 9

Regulatory Posture 5.3 / 15

Agent readiness — 29/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 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 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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It updates itself when the score changes. Paste this where you link to your API docs:

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 49.3 — up to +12.7 composite points Ask about this →
Developer Ergonomics scores 45.2 — up to +11.0 composite points Ask about this →
Contract Governance scores 22.0 — up to +9.4 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/microsoft-package/apis.yml: open an issue on github.com/api-evangelist/microsoft-package to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 8

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

NuGet Package API

API for managing .NET packages through NuGet Gallery.

Windows Package Manager (WinGet) API

API for the Windows Package Manager client for discovering and installing applications.

Microsoft Store API

API for managing app submissions and accessing Microsoft Store catalog.

Azure Artifacts Package API

API for managing packages in Azure Artifacts including NuGet, npm, Maven, and Python packages.

Microsoft Package PackageContent API

The PackageContent API from Microsoft Package — 2 operation(s) for packagecontent.

Microsoft Package Registration API

The Registration API from Microsoft Package — 1 operation(s) for registration.

Microsoft Package Search API

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

Microsoft Package Service Index API

The Service Index API from Microsoft Package — 1 operation(s) for service index.

Scroll for all 8

Open Collections 5

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

NuGet Server API (V3) PackageContent API

OPEN COLLECTION

NuGet Server API (V3) PackageContent Registration API

OPEN COLLECTION

NuGet Server API (V3) PackageContent Search API

OPEN COLLECTION

NuGet Server API (V3) PackageContent ServiceIndex API

OPEN COLLECTION

NuGet Server API (V3)

OPEN COLLECTION

Microsoft Package API pricing

Not yet checked against Microsoft Package's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

GET /api/v1/Packages: 1000 / minute
GET /api/v1/Search(): 3000 / minute
GET /api/v2/Packages: 20000 / minute

All 7 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Microsoft Package Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Microsoft Package Rate Limits

7 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Microsoft Package

13 quoted statements, read from Microsoft Package's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Microsoft Package

19 quoted statements, read from Microsoft Package's own page on 2026-11-10.

PRIVACY

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

Microsoft Package

1 quoted statement, read from Microsoft Package's own page on 2026-11-10.

COMPLIANCE

Eligibility 1

Who may sign up and where, quoted from its own terms.

Microsoft Package

2 quoted statements, read from Microsoft Package's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Microsoft Package

3 quoted statements, read from Microsoft Package's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Microsoft Package

1 quoted statement, read from Microsoft Package's own page on 2026-11-10.

LICENSE

FinOps 1

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

Microsoft Package Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Microsoft Package Context

2 classes · 4 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Microsoft Package API Rules

43 rules · 40 error-severity 1 warn-severity 2 info-severity

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

SearchResponse

2 properties

JSON SCHEMA

ServiceIndex

2 properties

JSON SCHEMA

Security Posture 4

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

Microsoft Package Authentication

apiKey · 1 scheme

SECURITY

Microsoft Package Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Microsoft Package Vulnerability Disclosure

security.txt · contact published

SECURITY

Microsoft Package Trust Center

GDPR

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Microsoft Package Agentic Access

5 operations

5 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Portal

Portal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

AIPreferences

AIPreferences

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

AgenticAccess

AgenticAccess

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 7

Authentication, authorization, and security posture

Compliance

SecurityTxt

Security

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Scroll for all 7

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

RateLimits

RateLimits

Support

Support

Commercial 6

Pricing, plans, and the legal terms of use

Plans

FinOps

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 7

Properties that don't map to a standard resource type

Hosts

Vendors

Leadership

CapabilityMap

DataProcessing

Attestations

Eligibility

Scroll for all 7

Source (apis.yml)

aid: microsoft-package
name: Microsoft Package
description: A collection of Microsoft package management APIs covering NuGet, Windows Package Manager (WinGet), Microsoft
  Store, and Azure Artifacts for managing and distributing software packages across Microsoft platforms.
type: Index
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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  probe_state: unreadable
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/microsoft-package.png
tags:
- Azure Artifacts
- Developer Tools
- Microsoft
- NuGet
- Package Management
- WinGet
url: https://developer.microsoft.com/
created: '2024-01-15'
modified: '2026-04-28'
specificationVersion: '0.23'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
common:
- type: WellKnown
  url: well-known/microsoft-package-well-known.yml
- type: Spectral
  url: rules/microsoft-package-rules.yml
- type: JSONLD
  url: json-ld/microsoft-package-context.jsonld
- type: Vocabulary
  url: vocabulary/microsoft-package-vocabulary.yml
- type: DataModel
  url: data-model/microsoft-package-data-model.yml
- type: Compliance
  url: https://www.microsoft.com/en-us/trust-center
- type: ErrorCatalog
  url: errors/microsoft-package-problem-types.yml
- type: Conformance
  url: conformance/microsoft-package-conformance.yml
- type: LLMsTxt
  url: llms/microsoft-package-llms.txt
- type: SecurityTxt
  url: well-known/microsoft-package-security.txt
- type: Hosts
  url: hosts/microsoft-package-hosts.yml
- type: Vendors
  url: vendors/microsoft-package-vendors.yml
- type: SDKs
  url: packages/microsoft-package-packages.yml
- type: Packages
  url: packages/microsoft-package-packages.yml
- type: Security
  url: https://www.microsoft.com/security
- type: Leadership
  url: https://news.microsoft.com/leadership
- type: ChangeLog
  url: https://developer.microsoft.com/en-us/changelog
- type: Blog
  url: https://techcommunity.microsoft.com/category/azure/blog/azurenetworkingblog
- type: GettingStarted
  url: https://learn.microsoft.com/en-us/adaptive-cards/sdk/rendering-cards/android/getting-started
- type: Documentation
  url: https://docs.nuget.org/
- type: GitHubOrganization
  url: https://github.com/microsoft
- type: TrustCenter
  url: security/microsoft-package-trust-center.yml
- type: CapabilityMap
  url: capabilities/microsoft-package-capability-edges.yml
  name: Microsoft Package Business Capability Map
- type: Plans
  url: plans/microsoft-package-plans-pricing.yml
- type: RateLimits
  url: rate-limits/microsoft-package-rate-limits.yml
- type: FinOps
  url: finops/microsoft-package-finops.yml
- type: Website
  url: https://www.microsoft.com/
- type: AgenticAccess
  url: agentic-access/microsoft-package-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/microsoft-package-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/microsoft-package-domain-security.yml
- type: Authentication
  url: authentication/microsoft-package-authentication.yml
- type: Portal
  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: UsageTerms
  url: terms/microsoft-package-terms-of-service.yml
- type: DataProcessing
  url: privacy/microsoft-package-privacy-policy.yml
- type: Attestations
  url: compliance/microsoft-package-compliance.yml
- type: Eligibility
  url: eligibility/microsoft-package-eligibility.yml
- type: AIPreferences
  url: ai-preferences/microsoft-package-ai-preferences.yml
- type: DataLicense
  url: data-license/microsoft-package-data-license.yml
apis:
- aid: microsoft-package:nuget-package-api
  name: NuGet Package API
  description: API for managing .NET packages through NuGet Gallery.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.nuget.org/
  baseURL: https://api.nuget.org/v3/index.json
  tags:
  - .NET
  - Library
  - NuGet
  - Packages
  tags_raw:
  - .NET
  - Libraries
  - NuGet
  - Packages
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/nuget/api/overview
  - type: Authentication
    url: https://learn.microsoft.com/en-us/nuget/api/authentication
- aid: microsoft-package:winget-api
  name: Windows Package Manager (WinGet) API
  description: API for the Windows Package Manager client for discovering and installing applications.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://learn.microsoft.com/en-us/windows/package-manager/
  baseURL: https://winget.azureedge.net/cache
  tags:
  - Application
  - Package Manager
  - Windows
  - WinGet
  tags_raw:
  - Applications
  - Package Manager
  - Windows
  - WinGet
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/windows/package-manager/
  - type: GitHubOrganization
    url: https://github.com/microsoft/winget-cli
- aid: microsoft-package:microsoft-store-api
  name: Microsoft Store API
  description: API for managing app submissions and accessing Microsoft Store catalog.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://learn.microsoft.com/en-us/windows/uwp/monetize/create-and-manage-submissions-using-windows-store-services
  baseURL: https://manage.devcenter.microsoft.com/v1.0/my/
  tags:
  - Application
  - Commercial
  - Microsoft Store
  - Submissions
  tags_raw:
  - Apps
  - Commercial
  - Microsoft Store
  - Submissions
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/windows/uwp/monetize/create-and-manage-submissions-using-windows-store-services
  - type: Authentication
    url: https://learn.microsoft.com/en-us/windows/uwp/monetize/create-and-manage-submissions-using-windows-store-services
- aid: microsoft-package:azure-artifacts-api
  name: Azure Artifacts Package API
  description: API for managing packages in Azure Artifacts including NuGet, npm, Maven, and Python packages.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://azure.microsoft.com/en-us/services/devops/artifacts/
  baseURL: https://pkgs.dev.azure.com/{organization}/
  tags:
  - Artifacts
  - Microsoft Azure
  - DevOps
  - Packages
  tags_raw:
  - Artifacts
  - Azure
  - DevOps
  - Packages
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/rest/api/azure/devops/artifacts/
  - type: Authentication
    url: https://learn.microsoft.com/en-us/azure/devops/integrate/get-started/authentication/authentication-guidance
- aid: microsoft-package:microsoft-package-packagecontent-api
  name: Microsoft Package PackageContent API
  description: The PackageContent API from Microsoft Package — 2 operation(s) for packagecontent.
  humanURL: https://www.nuget.org/
  baseURL: https://api.nuget.org/v3/index.json
  tags:
  - PackageContent
  properties:
  - type: OpenAPI
    url: openapi/microsoft-package-packagecontent-api-openapi.yml
- aid: microsoft-package:microsoft-package-registration-api
  name: Microsoft Package Registration API
  description: The Registration API from Microsoft Package — 1 operation(s) for registration.
  humanURL: https://www.nuget.org/
  baseURL: https://api.nuget.org/v3/index.json
  tags:
  - Registration
  properties:
  - type: OpenAPI
    url: openapi/microsoft-package-registration-api-openapi.yml
- aid: microsoft-package:microsoft-package-search-api
  name: Microsoft Package Search API
  description: The Search API from Microsoft Package — 1 operation(s) for search.
  humanURL: https://www.nuget.org/
  baseURL: https://api.nuget.org/v3/index.json
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/microsoft-package-search-api-openapi.yml
  - type: JSONSchema
    url: json-schema/microsoft-package-search-response-schema.json
- aid: microsoft-package:microsoft-package-service-index-api
  name: Microsoft Package Service Index API
  description: The Service Index API from Microsoft Package — 1 operation(s) for service index.
  humanURL: https://www.nuget.org/
  baseURL: https://api.nuget.org/v3
  tags:
  - ServiceIndex
  tags_raw:
  - Service Index
  properties:
  - type: OpenAPI
    url: openapi/microsoft-package-service-index-api-openapi.yml
  - type: JSONSchema
    url: json-schema/microsoft-package-service-index-schema.json
x-parent: github
x-relationship: product
x-enrichment:
  date: '2026-11-12'
  status: nochange
  artifacts_added: 0
  pass: local-v6
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: NuGet's V3 protocol is documented in prose on learn.microsoft.com and served from the api.nuget.org service index,
    but Microsoft publishes no OpenAPI for it, so the repo's contracts are docs-generated and this pass found nothing new
    since the 2026-11-04 profile.
  evidence:
  - url: https://api.nuget.org/v3/index.json
    status: 200
  - url: https://learn.microsoft.com/en-us/nuget/api/rate-limits
    status: 200
  checked: '2026-11-12'

Microsoft Package API — frequently asked questions

Does Microsoft Package have an API?

Yes. APIs.io lists 8 APIs from Microsoft Package, including NuGet Package API, Windows Package Manager (WinGet) API and Microsoft Store API, and 5 more.

Is there an OpenAPI specification for the Microsoft Package API?

Yes. APIs.io indexes 4 OpenAPI specifications for Microsoft Package, each linked for download from this page.

How do I authenticate with the Microsoft Package API?

Microsoft Package uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Microsoft Package Authentication.

How much does the Microsoft Package API cost?

APIs.io lists 3 pricing plans for Microsoft Package, with each plan's price, limits and inclusions under Pricing on this page.

Is the Microsoft Package API ready for AI agents?

Microsoft Package has a Kin Score of 54.6 out of 100 (strong) and an Agent Readiness score of 28.5 (agent-aware), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

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https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

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