Integration guide · Agent framework (TypeScript)

Vercel AI SDK on EU-hosted open models

Create an OpenAI-compatible provider for Frontière AI in the Vercel AI SDK and stream text, tools and embeddings from EU-hosted open models. createOpenAICompatible({ name, baseURL, apiKey }) from @ai-sdk/openai-compatible.

Tested on 13 October 2026. streamText with usage (includeUsage), generateText with a tool and bge-m3 embeddings against the gateway, with ai 7.0.138, @ai-sdk/openai-compatible 3.0.68 and gpt-oss-120b on OVHcloud (bge-m3 has been paused since 20 October 2026; the example now uses qwen3-embedding-8b).

API format

OpenAI-compatible

Base URL

https://getfrontiereai.eu/api/v1

Where it goes

createOpenAICompatible({ name, baseURL, apiKey }) from @ai-sdk/openai-compatible.

Your prompts

Straight from your machine to us

Setup

// npm i ai @ai-sdk/openai-compatible
import { createOpenAICompatible } from "@ai-sdk/openai-compatible";
import { embed, streamText } from "ai";

const frontiere = createOpenAICompatible({
  name: "frontiere",
  baseURL: "https://getfrontiereai.eu/api/v1",
  apiKey: process.env.FRONTIERE_API_KEY, // sk-front-...
  includeUsage: true,
});

const result = streamText({
  model: frontiere("glm-5.2"), // not the bare string "glm-5.2"
  prompt: "Hello from Europe",
});

const { embedding } = await embed({
  model: frontiere.embeddingModel("qwen3-embedding-8b"),
  value: "sunny day at the beach",
});

Which model to pick

24 live models have tool calling measured by a real call through the gateway. Models labeled EU sovereign run at European providers; fast-access models are served through US-controlled infrastructure. Prices are per 100,000 tokens, margin and VAT included.

Good to know

• Tool calling, streamed or not, works with the openai-compatible chat models and depends on the Frontière AI model you pick.
• Set supportsStructuredOutputs: true only for models that accept a json_schema response format.

Where your prompts go

The SDK calls baseURL directly from your server. Only the bare-string shortcut goes to the Vercel AI Gateway, a US service.

On our side, a model labeled EU sovereign runs at a European provider, and the gateway itself runs in Paris on Vercel, a US company — our privacy page says so. Billing keeps the model, the token counts and the amount, never the prompt or the reply.

Sovereignty →Privacy →

Sources

Official documentation, checked on 12 October 2026:

• AI SDK — OpenAI compatible providers
• AI SDK — source (openai-compatible)

FAQ

Other guides

• LangChainAgent framework (Python)
• LlamaIndexRAG framework (Python)