Xamarin

Xamarin was the San Francisco company behind the Mono-based cross-platform mobile development framework, letting developers build native iOS, Android, and Mac apps from a single C#/.NET codebase. Backed by investors including Insight Partners, it was acquired by Microsoft in 2016. Microsoft retired the Xamarin SDKs on May 1, 2024, with Xamarin.Forms succeeded by .NET MAUI. Xamarin shipped developer tooling and SDK packages rather than a public web API; its NuGet packages, docs, and GitHub organization remain its primary artifacts.

Xamarin is profiled on the APIs.io network. Tagged areas include Company, Devops, Mobile, Cross-Platform, and DotNet.

Xamarin’s developer surface includes documentation, engineering blog, support, changelog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyDevopsMobileCross-PlatformDotNetSDKMicrosoft

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 14.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 3.8 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/xamarin: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

Deprecation

Deprecation

ChangeLog

ChangeLog

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: xamarin
name: Xamarin
description: Xamarin was the San Francisco company behind the Mono-based cross-platform mobile development framework, letting
  developers build native iOS, Android, and Mac apps from a single C#/.NET codebase. Backed by investors including Insight
  Partners, it was acquired by Microsoft in 2016. Microsoft retired the Xamarin SDKs on May 1, 2024, with Xamarin.Forms succeeded
  by .NET MAUI. Xamarin shipped developer tooling and SDK packages rather than a public web API; its NuGet packages, docs,
  and GitHub organization remain its primary artifacts.
url: https://raw.githubusercontent.com/api-evangelist/xamarin/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- insight-partners
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://avatars.githubusercontent.com/xamarin
tags:
- Company
- Devops
- Mobile
- Cross-Platform
- DotNet
- SDK
- Microsoft
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://xamarin.com/
- type: Documentation
  url: https://learn.microsoft.com/en-us/xamarin/
- type: Blog
  url: https://devblogs.microsoft.com/xamarin/
- type: GitHubOrganization
  url: https://github.com/xamarin
- type: Support
  url: https://learn.microsoft.com/en-us/answers/tags/18/xamarin
- type: Packages
  url: packages/xamarin-packages.yml
- type: SDKs
  url: packages/xamarin-packages.yml
- type: Lifecycle
  url: lifecycle/xamarin-lifecycle.yml
- type: Deprecation
  url: https://dotnet.microsoft.com/en-us/platform/support/policy/xamarin
- type: ChangeLog
  url: changelog/xamarin-changelog.yml
- type: LLMsTxt
  url: llms/xamarin-llms.txt
- type: DomainSecurity
  url: security/xamarin-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 6
  pass: local-v1