export ANTHROPIC_BASE_URL=https://api.prism.example.com
export ANTHROPIC_AUTH_TOKEN=sk-prism-your-key
export ANTHROPIC_MODEL=anthropic/claude-opus-5

claude

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://api.prism.example.com",
  apiKey: process.env.PRISM_API_KEY,
});

const message = await client.messages.create({
  model: "anthropic/claude-opus-5",
  max_tokens: 1024,
  messages: [{ role: "user", content: "สวัสดี" }],
});

{ "type": "error", "error": { "type": "authentication_error", "message": "invalid api key" } }