@fazio/langchain-infomaniak

LangChain.js integration for Infomaniak AI through their OpenAI-compatible API.

Installation

npm install @fazio/langchain-infomaniak @langchain/core

Configuration

You need an Infomaniak API token and a product ID. Set the following environment variables:

export INFOMANIAK_API_KEY="your-api-token"
export INFOMANIAK_PRODUCT_ID="your-product-id"

Chat Models

import { ChatInfomaniak } from "@fazio/langchain-infomaniak";

const model = new ChatInfomaniak({
  model: "qwen3",
  temperature: 0.7,
});

const response = await model.invoke("Hello, how are you?");
console.log(response.content);

Embeddings

import { InfomaniakEmbeddings } from "@fazio/langchain-infomaniak";

const embeddings = new InfomaniakEmbeddings({
  model: "bge_multilingual_gemma2",
});

const vector = await embeddings.embedQuery("Hello world");
console.log(vector.length);

LLM (Text Completion)

import { InfomaniakLLM } from "@fazio/langchain-infomaniak";

const llm = new InfomaniakLLM({
  model: "qwen3",
});

const result = await llm.invoke("Tell me a joke");
console.log(result);

Streaming

import { ChatInfomaniak } from "@fazio/langchain-infomaniak";

const model = new ChatInfomaniak({ model: "qwen3" });

for await (const chunk of await model.stream("Tell me a story")) {
  process.stdout.write(chunk.content as string);
}

Tool Calling

import { ChatInfomaniak } from "@fazio/langchain-infomaniak";

const model = new ChatInfomaniak({ model: "qwen3" });

const llmWithTools = model.bindTools([
  {
    name: "get_weather",
    description: "Get the current weather in a given location",
    schema: {
      type: "object",
      properties: {
        location: { type: "string", description: "The city name" },
      },
      required: ["location"],
    },
  },
]);

const result = await llmWithTools.invoke("What is the weather in Geneva?");
console.log(result.tool_calls);

Development

Setup

git clone https://github.com/0xfazio/langchain-infomaniak.git
cd langchain-infomaniak
npm install

# Build
npm run build

Testing

# Unit tests (no API key needed)
npm test

# Integration tests (requires API credentials)
export INFOMANIAK_API_KEY="your-api-token"
export INFOMANIAK_PRODUCT_ID="your-product-id"
npm run test:int

Linting

npm run lint

API Reference

• Base URL: https://api.infomaniak.com/2/ai/{product_id}/openai/v1
• Authentication: Bearer token via Authorization header
• Docs: https://developer.infomaniak.com/getting-started