Anthropic

Configuration

Variable	Required
ANTHROPIC_API_KEY	Yes

Usage

Gateway

curl -X POST http://localhost:8080/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model": "anthropic/claude-sonnet-4-20250514", "messages": [{"role": "user", "content": "Hello!"}]}'

Library

use llmg_providers::anthropic::AnthropicClient;
use llmg_core::provider::Provider;

let client = AnthropicClient::from_env()?;
// or
let client = AnthropicClient::new("sk-ant-...");

Features

• Chat completions (auto-converts to Anthropic format)
• Custom base URL
• Anthropic API version header

Notes

LLMG automatically converts between the OpenAI message format and Anthropic’s native format. System messages are extracted and sent via the system parameter.