Skip to main content

​
Overview

Claude Code is powered by Anthropic’s Claude models and is the go-to coding agent for many developers. It offers excellent performance across a wide range of tasks.

​
Latest Models

  • Claude 4.5 Sonnet - Latest high-performance model
  • Claude 4.5 Opus - Most capable model with enhanced reasoning

​
Authentication

Claude Code supports three authentication methods:
Pay-as-you-go API access
  1. Get an API key at Anthropic Console
  2. In Blocks Dashboard, go to Dashboard → Agents
  3. Select Claude Code and choose “API Key”
  4. Paste your API key (starts with sk-ant-)

​
Setting as Default

To use Claude Code automatically for all requests:
  1. Go to Dashboard → Agents
  2. Select “Set as default agent” from Claude Code’s dropdown menu
Learn more: Setting Your Default Agent

​
Using Claude Code

Once configured, Claude Code is used automatically if it’s your default agent: 
@blocks can you review this code?
Or use the /claude slash command to use it specifically: 
@blocks /claude review this PR for security issues

​
Best For

  • Code reviews and analysis
  • Complex problem solving
  • Architecture planning
  • Security analysis
  • Detailed explanations
  • Refactoring

​
Cost

Claude Code uses your Anthropic API key or subscription:

​
Next Steps

Agents Overview

Compare all available agents

Set Default Agent

Configure your default agent

Codex Agent

Learn about Codex

Gemini CLI

Explore Gemini CLI (experimental)