Hoja de Referencia de Claude¶

Descripción General¶

Claude es un asistente de IA de Anthropic diseñado para ser útil, inofensivo y honesto. Destaca en generación de código, análisis, depuración y redacción técnica. Claude admite múltiples lenguajes de programación y puede ayudar en tareas complejas de desarrollo de software, decisiones arquitectónicas y revisiones de código.

⚠️ Nota: Requiere cuenta de Anthropic. Disponible plan gratuito con límites de uso. Planes Profesional y de Equipo ofrecen límites más altos y características adicionales.

Métodos de Acceso¶

Interfaz Web¶

# Direct browser access
# Visit: https://claude.ai
# Sign up with email or Google account
# Start chatting immediately

Integración de API¶

# Install Anthropic SDK
pip install anthropic

# Or using npm
npm install @anthropic-ai/sdk

# Set API key
export ANTHROPIC_API_KEY=your_api_key_here

Integraciones de Terceros¶

# Popular IDE extensions:
# - Claude for VS Code (community)
# - Claude Dev (VS Code extension)
# - Cline (formerly Claude Dev)

# Install Cline extension
code --install-extension saoudrizwan.claude-dev

Uso de API¶

SDK de Python¶

import anthropic

# Initialize client
client = anthropic.Anthropic(
    api_key="your_api_key_here"
)

# Basic message
message = client.messages.create(
    model="claude-3-5-sonnet-20241022",
    max_tokens=1000,
    temperature=0,
    messages=[
        {
            "role": "user",
            "content": "Write a Python function to calculate fibonacci numbers"
        }
    ]
)

print(message.content)

SDK de Node.js¶

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

const anthropic = new Anthropic({
  apiKey: process.env.ANTHROPIC_API_KEY,
});

const msg = await anthropic.messages.create({
  model: "claude-3-5-sonnet-20241022",
  max_tokens: 1000,
  temperature: 0,
  messages: [
    {
      "role": "user",
      "content": "Create a React component for a todo list"
    }
  ]
});

console.log(msg.content);

Ejemplos de cURL¶

# Basic API call
curl https://api.anthropic.com/v1/messages \
  --header "x-api-key: $ANTHROPIC_API_KEY" \
  --header "content-type: application/json" \
  --header "anthropic-version: 2023-06-01" \
  --data '{
    "model": "claude-3-5-sonnet-20241022",
    "max_tokens": 1000,
    "messages": [
      {
        "role": "user",
        "content": "Explain async/await in JavaScript"
      }
    ]
  }'

Versiones de Modelo¶

Claude 3.5 Sonnet¶

# Model: claude-3-5-sonnet-20241022
# Best overall performance
# Excellent for coding tasks
# Strong reasoning capabilities
# 200K context window

Claude 3 Opus¶

# Model: claude-3-opus-20240229
# Most capable model
# Best for complex reasoning
# Highest accuracy
# 200K context window
# Higher cost per token

Claude 3 Haiku¶

# Model: claude-3-haiku-20240307
# Fastest and most affordable
# Good for simple tasks
# Quick responses
# 200K context window
# Lower cost per token

Generación de Código¶

Creación de Funciones¶

# Prompt: "Create a Python function to validate email addresses with regex"
import re

def validate_email(email):
    """
    Validate email address using regex pattern.

    Args:
        email (str): Email address to validate

    Returns:
        bool: True if valid email, False otherwise
    """
    pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
    return re.match(pattern, email) is not None

# Example usage
print(validate_email("user@example.com"))  # True
print(validate_email("invalid-email"))     # False

Implementación de Clases¶

// Prompt: "Create a JavaScript class for managing a shopping cart"
class ShoppingCart {
    constructor() {
        this.items = [];
        this.total = 0;
    }

    addItem(product, quantity = 1) {
        const existingItem = this.items.find(item => item.product.id === product.id);

        if (existingItem) {
            existingItem.quantity += quantity;
        } else {
            this.items.push({ product, quantity });
        }

        this.updateTotal();
    }

    removeItem(productId) {
        this.items = this.items.filter(item => item.product.id !== productId);
        this.updateTotal();
    }

    updateTotal() {
        this.total = this.items.reduce((sum, item) => {
            return sum + (item.product.price * item.quantity);
        }, 0);
    }

    getItemCount() {
        return this.items.reduce((count, item) => count + item.quantity, 0);
    }
}

Desarrollo de Endpoints de API¶

# Prompt: "Create a FastAPI endpoint for user authentication"
from fastapi import FastAPI, HTTPException, Depends
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from pydantic import BaseModel
import jwt
import bcrypt
from datetime import datetime, timedelta

app = FastAPI()
security = HTTPBearer()

class UserLogin(BaseModel):
    username: str
    password: str

class UserResponse(BaseModel):
    username: str
    token: str

@app.post("/auth/login", response_model=UserResponse)
async def login(user_data: UserLogin):
    # Verify user credentials (implement your user verification logic)
    if not verify_user(user_data.username, user_data.password):
        raise HTTPException(status_code=401, detail="Invalid credentials")

    # Generate JWT token
    token_data = {
        "username": user_data.username,
        "exp": datetime.utcnow() + timedelta(hours=24)
    }
    token = jwt.encode(token_data, "your-secret-key", algorithm="HS256")

    return UserResponse(username=user_data.username, token=token)

def verify_user(username: str, password: str) -> bool:
    # Implement your user verification logic here
    # This is a placeholder implementation
    return True

Análisis y Revisión de Código¶

Explicación de Código¶

# Prompt: "Explain this code and suggest improvements"
# Claude analyzes code structure, logic, and provides detailed explanations
# Identifies potential issues and optimization opportunities
# Suggests best practices and alternative approaches

Revisión de Seguridad¶

# Prompt: "Review this code for security vulnerabilities"
# Claude identifies:
# - SQL injection risks
# - XSS vulnerabilities
# - Authentication issues
# - Input validation problems
# - Cryptographic weaknesses
# - Access control flaws

Análisis de Rendimiento¶

# Prompt: "Analyze this code for performance bottlenecks"
# Claude examines:
# - Algorithm complexity
# - Memory usage patterns
# - Database query efficiency
# - Caching opportunities
# - Concurrent processing potential

Asistencia de Depuración¶

Diagnóstico de Errores¶

# Share error message and code context
# Claude provides:
# - Root cause analysis
# - Step-by-step debugging approach
# - Multiple solution options
# - Prevention strategies

# Example prompt:
"""
I'm getting this error: "TypeError: 'NoneType' object is not subscriptable"
Here's my code:
[paste your code here]
Can you help me debug this?
"""

Estrategia de Pruebas¶

// Prompt: "Create comprehensive tests for this function"
// Claude generates:
// - Unit tests
// - Integration tests
// - Edge case scenarios
// - Mock implementations
// - Test data fixtures

describe('ShoppingCart', () => {
    let cart;

    beforeEach(() => {
        cart = new ShoppingCart();
    });

    test('should initialize with empty items and zero total', () => {
        expect(cart.items).toEqual([]);
        expect(cart.total).toBe(0);
    });

    test('should add new item to cart', () => {
        const product = { id: 1, name: 'Test Product', price: 10.99 };
        cart.addItem(product, 2);

        expect(cart.items).toHaveLength(1);
        expect(cart.items[0].quantity).toBe(2);
        expect(cart.total).toBe(21.98);
    });
});

Características Avanzadas¶

Conversaciones de Múltiples Turnos¶

# Maintain context across multiple interactions
# Claude remembers previous code discussions
# Can iterate on solutions
# Builds upon previous suggestions

# Example conversation flow:
# 1. "Create a user management system"
# 2. "Add password hashing to the previous code"
# 3. "Now add email verification functionality"
# 4. "Include rate limiting for login attempts"

Refactorización de Código¶

The rest of the sections remain untranslated as no specific text was provided for those numbered sections.```bash

Prompt: "Refactor this code to use modern Python patterns"¶

Claude transforms:¶

- Legacy code to modern syntax¶

- Procedural to object-oriented¶

- Synchronous to asynchronous¶

- Monolithic to modular design¶

### Diseño de Arquitecturabash

Prompt: "Design a microservices architecture for an e-commerce platform"¶

Claude provides:¶

- Service decomposition strategy¶

- API design patterns¶

- Database architecture¶

- Communication protocols¶

- Deployment considerations¶

## Integración de IDEbash

Install Cline extension¶

code --install-extension saoudrizwan.claude-dev

Features:¶

- Inline code generation¶

- File editing capabilities¶

- Terminal command execution¶

- Multi-file project understanding¶

- Automated testing¶

### Configuraciónjson // VS Code settings for Claude integration { "claude-dev.apiKey": "your_api_key", "claude-dev.model": "claude-3-5-sonnet-20241022", "claude-dev.maxTokens": 4000, "claude-dev.temperature": 0.1 } ### Atajos de Tecladobash

Common shortcuts in Claude-enabled editors:¶

Ctrl+Shift+P # Open command palette Ctrl+K Ctrl+I # Inline code generation Ctrl+K Ctrl+C # Code explanation Ctrl+K Ctrl+T # Generate tests Ctrl+K Ctrl+R # Refactor code ## Mejores Prácticasbash

Be specific and provide context¶

Good: "Create a Python function that validates email addresses using regex, handles edge cases, and returns detailed error messages"¶

Bad: "Make email validator"¶

Include relevant details:¶

- Programming language¶

- Framework/library preferences¶

- Performance requirements¶

- Error handling needs¶

- Testing requirements¶

### Indicaciones Efectivasbash

Always review generated code:¶

1. Test functionality thoroughly¶

2. Check for security vulnerabilities¶

3. Verify error handling¶

4. Ensure code style consistency¶

5. Validate performance implications¶

### Calidad del Códigobash

Use Claude for iterative improvement:¶

1. Start with basic implementation¶

2. Add error handling¶

3. Improve performance¶

4. Add comprehensive tests¶

5. Refactor for maintainability¶

### Desarrollo Iterativobash

Claude.ai web interface:¶

- Limited messages per day¶

- Access to Claude 3.5 Sonnet¶

- Basic conversation features¶

- No API access¶

## Precios y Límitesbash

Enhanced features:¶

- 5x more usage¶

- Priority bandwidth¶

- Early access to new features¶

- Create Projects with Claude¶

### Plan Gratuitobash

Claude 3.5 Sonnet:¶

Input: $3 per million tokens¶

Output: $15 per million tokens¶

Claude 3 Opus:¶

Input: $15 per million tokens¶

Output: $75 per million tokens¶

Claude 3 Haiku:¶

Input: $0.25 per million tokens¶

Output: $1.25 per million tokens¶

### Plan Pro ($20/mes)bash

API rate limits:¶

- Implement exponential backoff¶

- Monitor usage quotas¶

- Use appropriate model for task¶

Context window limits:¶

- Break large requests into chunks¶

- Summarize previous context¶

- Use conversation memory efficiently¶

### Precios de APIpython

Robust API error handling¶

import anthropic from anthropic import APIError, RateLimitError

try: response = client.messages.create( model="claude-3-5-sonnet-20241022", max_tokens=1000, messages=[{"role": "user", "content": prompt}] ) except RateLimitError: print("Rate limit exceeded. Please wait and try again.") except APIError as e: print(f"API error occurred: {e}") except Exception as e: print(f"Unexpected error: {e}") ## Resolución de Problemasbash

Optimize API usage:¶

- Use appropriate model for task complexity¶

- Set reasonable max_tokens limits¶

- Implement caching for repeated queries¶

- Batch similar requests when possible¶

```### Problemas Comunes https://docs.anthropic.com/### Manejo de Errores https://docs.anthropic.com/claude/docs/models-overview### Optimización de Rendimiento https://docs.anthropic.com/claude/reference/## Recursos https://discord.gg/anthropic### Documentación https://reddit.com/r/ClaudeAI### Comunidad https://stackoverflow.com/questions/tagged/anthropic-claude### Herramientas y Extensiones

Would you like me to complete the translations with the actual text content?https://marketplace.visualstudio.com/items?itemName=saoudrizwan.claude-dev[Libro de recetas de la API de Claude](https://github.com/anthropics/anthropic-cookbook Herramientas de la Comunidad