Vercel AI SDK

import { createOpenAICompatible } from "@ai-sdk/openai-compatible";
import { generateText } from "ai";

const caveman = createOpenAICompatible({
  name: "caveman",
  baseURL: "http://127.0.0.1:8787/w/my-service/openai/v1",
  apiKey: process.env.OPENAI_API_KEY,
});

const { text } = await generateText({
  model: caveman("gpt-4.1"),
  prompt: "Why is the sky blue?",
});

// Anthropic models keep their native protocol (no translation):
//   import { createAnthropic } from "@ai-sdk/anthropic";
//   const anthropic = createAnthropic({ baseURL: "http://127.0.0.1:8787/w/my-service/v1" });