Claude Official Sites | Official App, Documentation & Social Media Guide

Claude's Primary Official Web Services

There are two main official web services for Claude.

claude.com is the unified portal introduced in 2025 and beyond. Chat, plan management, product information, blog, and support navigation are all consolidated here, making it the domain new Claude users should visit first. Product overviews can be found at claude.com/product/overview.

claude.ai was originally used as the domain for the chat interface. It has now been largely integrated into claude.com, but old URLs may remain in bookmarks or shared links. Either way, accessing either domain will ultimately bring you to the same service.

Pricing plans are listed at claude.com/pricing, where Free, Pro, Max, Team, and Enterprise plans along with their monthly fees are publicly available.

Official Mobile Apps (iOS & Android)

Anthropic provides official mobile apps for both iOS and Android platforms.

On the App Store, search for "Claude by Anthropic," and on Google Play, search for "Claude" to find the official app. Always verify that the developer is Anthropic before installing, as unofficial "AI chat" apps with similar names are sometimes distributed.

Key features supported by the official mobile app:

1. Text chat (with conversation history sync)
2. Image and file upload and analysis
3. Model selection for Pro plans and above
4. Web search integration (availability depends on plan)

Official Desktop Apps (Windows, Mac & Linux)

The official Claude desktop app is available for Windows, Mac, and Linux. You can download the installer from the download page on claude.com.

Compared to the browser version, the desktop app offers better keyboard shortcut usability and more intuitive integration with other applications (such as file drag-and-drop). For engineers who use Claude Code daily in particular, running the desktop app as a persistent background application is often more efficient.

Key benefits of the official desktop app:

1. OS-native window management enables faster switching between workspaces
2. Keeps browser tabs uncluttered by providing a dedicated Claude workspace
3. Makes it easier to browse past conversation history even when offline

Official Model Lineup

As of June 2026, Anthropic officially offers five model families.

The latest versions of each model and the plans on which they are available are continuously updated at claude.com/product/overview. Note that not just the model name but also the version number (e.g., claude-sonnet-4-6) matters — when using the API, you must specify the exact model ID.

Official Resources for Developers

The first place developers who want to integrate Claude into their own services via API or SDK should visit is platform.claude.com.

• API Console: platform.claude.com — Issue API keys, check usage, and manage projects
• Official Documentation: platform.claude.com/docs — API reference, SDK guides, and quickstart

Both the Python SDK and TypeScript SDK are officially maintained by Anthropic and can be installed via pip or npm.

# Python SDK
pip install anthropic

# npm (TypeScript)
npm install @anthropic-ai/sdk

The official documentation includes systematically organized feature-specific guides for "Messages API," "Tool use," "Vision," "Prompt caching," and more. It contains more accurate and up-to-date information than unofficial third-party blogs.

Official Blog and News

Anthropic's official communications flow through two main channels.

The Claude Blog is accessible at claude.com/blog. It focuses on introducing new product features, use case examples, and how-to guides, with plenty of content that non-engineer users can easily read.

Anthropic News is consolidated at anthropic.com/news. This is where more technical announcements are posted, such as research papers, safety reports, and model release announcements. If you are looking for "model cards" or "safety evaluation reports" in particular, this is the place to check.

Major announcements typically appear first on anthropic.com/news, with user-facing explanations following on claude.com/blog within a few days.

Official Social Media Accounts

Anthropic's official social media presence is as follows.

X (formerly Twitter): @AnthropicAI is the company's official account. You can catch product releases, hiring news, and research announcements as they happen. There is no standalone "Claude" account — all communications are posted under the Anthropic name.

LinkedIn: Anthropic's company page. Primarily focused on hiring information and partnership announcements, with a lot of content aimed at B2B and Enterprise audiences.

YouTube: Product demos and research explainer videos are posted to the official Anthropic channel. Demo videos for Claude Code and showcase videos for new models are especially useful references.

One important note: there are many unofficial accounts on X that claim names like "Claude AI" or "Claude tips." Since the accuracy of information from non-Anthropic-endorsed accounts cannot be guaranteed, always verify important specifications through the official documentation.

Official Support and System Status

The official support portal for issues encountered during use is support.claude.com. Help articles are organized by the following categories:

1. Account management (login, password, subscriptions)
2. How to use features (image upload, file analysis, Artifacts)
3. Billing and plan changes
4. API usage troubleshooting

Outage and maintenance information for Claude and Anthropic infrastructure is published at status.anthropic.com. When Claude is unreachable or response times are noticeably slow, checking this page first is the most efficient approach. Past incident history is also available.

Official Partner Programs and Marketplace

Claude officially extends its integrations with third parties.

The Claude Partner Network at claude.com/partners lists Anthropic-certified partner companies and integrated services. For businesses considering adoption, support is available through certified partners.

Key official integrations include Slack, Microsoft 365, Amazon Bedrock, Google Cloud Vertex AI, and Microsoft Azure. These are enterprise-grade integration pathways officially supported by Anthropic and can be chosen as an alternative to calling the API directly.

How to Tell Official Resources from Unofficial Information

There is a wealth of information about Claude on the internet, but it varies in reliability. Here is a framework for distinguishing official from unofficial sources.

Criteria for confirming official sources:

1. The domain is anthropic.com or claude.com / claude.ai
2. On X, the account is @AnthropicAI (with a verification badge)
3. On GitHub, the repository is under github.com/anthropics
4. On PyPI, the package is anthropic (with Anthropic Inc. listed as maintainer)

Cases to watch out for:

• Unauthorized wrapper services claiming to offer the "Official Claude API"
• Apps on the App Store or Google Play where the developer is not Anthropic
• Outdated documentation or blog posts (model names and pricing may have changed)

The official documentation at platform.claude.com/docs is updated frequently and continuously reflects model deprecation schedules, API specification changes, and new feature additions. When verifying the latest Claude specifications, always treating the official documentation as your primary source is the most reliable approach.

Summary: Quick Reference Table of Official Resources by Purpose

Anthropic is actively building out its official channels, with documentation, blogs, and support becoming increasingly centralized. When in doubt, starting from claude.com or anthropic.com will reliably lead you to official information.