Claude Code

Claude Code is Anthropic's terminal-based AI coding agent. You can configure it to use Link Astra's API endpoint instead of connecting to Anthropic directly.

Prerequisites

Node.js 18+ installed
A Link Astra API key (contact support@linkastra.ai to obtain one)

Installation

npm install -g @anthropic-ai/claude-code

Configuration

Set two environment variables to redirect Claude Code through Link Astra:

macOS / Linux (zsh)

echo 'export ANTHROPIC_BASE_URL="https://api.linkastra.ai"' >> ~/.zshrc
echo 'export ANTHROPIC_AUTH_TOKEN="YOUR_API_KEY"' >> ~/.zshrc
source ~/.zshrc

macOS / Linux (bash)

echo 'export ANTHROPIC_BASE_URL="https://api.linkastra.ai"' >> ~/.bashrc
echo 'export ANTHROPIC_AUTH_TOKEN="YOUR_API_KEY"' >> ~/.bashrc
source ~/.bashrc

Windows (PowerShell)

[System.Environment]::SetEnvironmentVariable("ANTHROPIC_BASE_URL", "https://api.linkastra.ai", "User")
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_AUTH_TOKEN", "YOUR_API_KEY", "User")

Restart your terminal after setting these variables.

Verify

claude --version

If the version is displayed, the installation is successful.

Usage

cd /path/to/your/project
claude

Claude Code will now route all requests through api.linkastra.ai using your Link Astra API key.

Notes

The ANTHROPIC_BASE_URL should be https://api.linkastra.ai (no /v1 suffix — Claude Code appends it automatically)
Claude Code uses the Anthropic API format, not the OpenAI format
Make sure your Link Astra account supports the Claude-compatible endpoint

Cursor — Configure Cursor IDE
Cline — Configure Cline VS Code extension

OpenAI SDK

Cline