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Claude Code Setup

Claude Code  is Anthropic’s official AI coding CLI tool. With OfoxAI, you get unlimited throughput, lower latency, and multi-model switching capabilities.

Why Use OfoxAI?

  • High rate quota — 200 RPM by default, unlimited TPM for high-frequency coding needs
  • 99.9% SLA — Multi-node redundancy with automatic failover
  • Low latency — P99 latency < 200ms
  • Full protocol support — 100% compatible with Anthropic native protocol

Setup Steps

1. Get an API Key

Go to the OfoxAI Console  to create an API Key.

2. Set Environment Variables

Claude Code uses the Anthropic native protocol and requires ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN.

Add the following to your shell configuration file (~/.zshrc or ~/.bashrc):

~/.zshrc
export ANTHROPIC_BASE_URL=https://api.ofox.ai/anthropic
export ANTHROPIC_AUTH_TOKEN=<your OFOXAI_API_KEY>

Then reload:

source ~/.zshrc

3. Verify Configuration

claude --version
# A normal version output indicates successful configuration
 
# Send a test message
claude "Hello, how are you?"

Model Mapping

Model name mapping when using Claude Code:

Used in Claude CodeOfoxAI Model ID
claude-opus-4.6anthropic/claude-opus-4.6
claude-sonnet-4.5anthropic/claude-sonnet-4.5
claude-haiku-4.5anthropic/claude-haiku-4.5

OfoxAI automatically handles model name mapping, so you don’t need to manually add the anthropic/ prefix. Claude Code’s default model names work directly.

Advanced Configuration

Configure in settings.json

You can also set environment variables in Claude Code’s configuration file:

~/.claude/settings.json
{
  "env": {
    "ANTHROPIC_BASE_URL": "https://api.ofox.ai/anthropic",
    "ANTHROPIC_AUTH_TOKEN": "<your OFOXAI_API_KEY>"
  }
}

Switch Models

Use the /model command in Claude Code to switch models:

/model claude-sonnet-4.5

Troubleshooting

Common Issues

Q: “Authentication error” message

Check that ANTHROPIC_AUTH_TOKEN is correctly set:

echo $ANTHROPIC_AUTH_TOKEN
# Should output your API Key

Q: Connection timeout

Check that ANTHROPIC_BASE_URL is correct:

echo $ANTHROPIC_BASE_URL
# Should output https://api.ofox.ai/anthropic

Q: Streaming response stuttering

Check your network connection. If using from mainland China, OfoxAI provides Hong Kong node acceleration with approximately 300ms latency.

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