Browse All Packages

@anthropics✓ Official

Access to Anthropic's safety-first language model APIs via Go

@anthropics✓ Official

This repo contains detailed implementation information about Anthropic's paired prompts approach for evaluating politica

@modelcontextprotocol✓ Official

The official PHP SDK for Model Context Protocol servers and clients. Maintained in collaboration with The PHP Foundation

@microsoft✓ Official

A collection of skills and MCP systems to enable users of CLI, VSCode, Claude to operate over Microsoft Fabric

@anthropics✓ Official

An implementation of the ConnectRPC protocol for Rust

@anthropics✓ Official

Access to Anthropic's safety-first language model APIs in TypeScript

@modelcontextprotocol✓ Official

The official Ruby SDK for the Model Context Protocol.

@anthropics✓ Official

Rust implementation of protobuf with editions support, JSON serialization, and zero-copy views

@anthropics✓ Official

Reference and an example for the Bluetooth API for makers in Claude Cowork & Claude Code Desktop

@anthropics✓ Official

Claude Code SDK Demos

@anthropics✓ Official

Access to Anthropic's safety-first language model APIs in PHP

@anthropics✓ Official

A collection of notebooks/recipes showcasing some fun and effective ways of using Claude.

@anthropics✓ Official

Homebrew formulae for Anthropic tools.

@anthropics✓ Official

Supplementary materials for Claude Model Cards

@anthropics✓ Official

Benchmark for evaluating LLM agents on smart-contract vulnerability discovery and exploitation

@modelcontextprotocol✓ Official

The official Swift SDK for Model Context Protocol servers and clients.

@modelcontextprotocol✓ Official

The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI

@harness✓ Official

A collection of structured AI agent skills that enable Claude Code, Cursor, GitHub Copilot, and other AI coding assi

@anthropics✓ Official

The CLI for the Claude API

@anthropics✓ Official

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster

@anthropics✓ Official

Anthropic's original performance take-home, now open for you to try!

@anthropics✓ Official

Head Vis Public Release

@anthropics✓ Official

Repo for the Claude Code Marketplace to use with the Claude for Life Sciences Launch. This will continue to host the mar

@microsoft✓ Official

Official agent plugin providing skills and MCP server configurations for Azure scenarios.

@modelcontextprotocol✓ Official

The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.

@anthropics✓ Official

Open source repository of plugins primarily intended for knowledge workers to use in Claude Cowork

@anthropics✓ Official

HTML effectiveness examples

@anthropics✓ Official

Anthropic's educational courses

@anthropics✓ Official

The foundational document describing Claude's values and behavior

@anthropics✓ Official

Chrome extension showing helpful troubleshooting when Tailscale .local domains fail to resolve

@anthropics✓ Official

Community plugin marketplace for Claude Cowork and Claude Code. Read-only mirror — submit plugins at clau.de/plugin-dire

@anthropics✓ Official

Anthropic Dev Container Features, including Claude Code CLI

@anthropics✓ Official

Claude Opus 4.6 wrote a dependency-free C compiler in Rust, with backends targeting x86 (64- and 32-bit), ARM, and RISC-

@anthropics✓ Official

Access to Anthropic's safety-first language model APIs in C#

@microsoft✓ Official

Skills, MCP servers, Custom Agents, Agents.md for SDKs to ground Coding Agents

@microsoft✓ Official

Agent Package Manager

@microsoft✓ Official

An open-source Digital Worker platform for reliable execution and continuous co-evolution.

@modelcontextprotocol✓ Official

Secure sandboxed local file operations — official Anthropic reference server

@modelcontextprotocol✓ Official

Git repository operations — read commits, diffs, branches — official reference

@e2b-dev✓ Official

Claude Code Sandbox with FastAPI Backend

@github✓ Official

Github Agentic Workflows MCP Gateway

@axiomhq✓ Official

Axiom MCP Server

@semgrep✓ Official

Home for the Semgrep Claude Code Plugin.

@github✓ Official

GitHub Agentic Workflows

@modelcontextprotocol✓ Official

The official Kotlin SDK for Model Context Protocol servers and clients. Maintained in collaboration with JetBrains