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Using TexAPI with Claude Code

What is Claude Code?

Claude Code is Anthropic's official AI coding assistant that runs in your terminal. It can read your codebase, write code, run commands, and help you build software faster.

Why use TexAPI with Claude Code?

  • Up to 60% cheaper than official Anthropic pricing
  • No waitlist — instant access
  • No region restrictions — works worldwide
  • Same quality — same Claude models, same capabilities

Setup

macOS / Linux

Add to your ~/.bashrc, ~/.zshrc, or ~/.profile:

export ANTHROPIC_BASE_URL=https://texapi.dev
export ANTHROPIC_API_KEY=tex-YOUR_API_KEY

Then restart your terminal or run source ~/.zshrc.

Windows (PowerShell)

Add to your PowerShell profile ($PROFILE):

$env:ANTHROPIC_BASE_URL = "https://texapi.dev"
$env:ANTHROPIC_API_KEY = "tex-YOUR_API_KEY"

Or set system environment variables:

  1. Open System Properties → Environment Variables
  2. Add ANTHROPIC_BASE_URL = https://texapi.dev
  3. Add ANTHROPIC_API_KEY = tex-YOUR_API_KEY

Verify

claude
# Claude Code should start normally and use TexAPI as the backend

Supported Features

Feature Status
Chat / Conversation ✅
Streaming ✅
Extended Thinking ✅
Tool Use ✅
File Reading/Writing ✅
Command Execution ✅
Multi-turn Context ✅

Recommended Models

Model Best For Cost
claude-sonnet-4-5 Daily coding (default) 3.0 / 15.0 credits per 1M tokens
claude-opus-4-5 Complex architecture 15.0 / 75.0 credits per 1M tokens
claude-haiku-4-5 Quick tasks 0.8 / 4.0 credits per 1M tokens

Troubleshooting

"Authentication failed"

  • Make sure your API key starts with tex-
  • Check that the key is active in your TexAPI Dashboard

"Insufficient credits"

"Rate limited"

  • Default: 60 RPM on Starter plan
  • Upgrade your plan or wait a moment

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