clade-install-auth

name	clade-install-auth
description	Install and configure the Anthropic SDK for Claude API access. Use when setting up Claude integration, configuring API keys, or initializing the Anthropic client in your project. Trigger with phrases like "install anthropic", "setup claude api", "anthropic auth", "configure anthropic API key".
allowed-tools	Read, Write, Edit, Bash(npm:*), Bash(pip:*), Grep
version	1.0.0
license	MIT
author	Jeremy Longshore <[e-mail]>
compatible-with	claude-code
tags	["saas","anthropic","claude","ai"]

Anthropic Install & Auth

Overview

Set up the Anthropic SDK and configure your API key to start using Claude models.

Prerequisites

• Node.js 18+ or Python 3.10+
• Anthropic account at console.anthropic.com
• API key from Settings → API Keys (starts with sk-ant-)

Instructions

Step 1: Install SDK

# Node.js / TypeScript
npm install @claude-ai/sdk

# Python
pip install anthropic

Step 2: Configure API Key

# Set environment variable (recommended)
export ANTHROPIC_API_KEY="sk-ant-api03-..."

# Or add to .env file
echo 'ANTHROPIC_API_KEY=sk-ant-api03-...' >> .env

Important: Never hardcode API keys. Use environment variables or a secrets manager. Keys start with sk-ant-.

Step 3: Verify Connection

import Anthropic from '@claude-ai/sdk';

const client = new Anthropic(); // reads ANTHROPIC_API_KEY from env

const message = await client.messages.create({
  model: 'claude-sonnet-4-20250514',
  max_tokens: 64,
  messages: [{ role: 'user', content: 'Say "connected" in one word.' }],
});
console.log(message.content[].);