Langbase SDK

Langbase provides a TypeScript, Python AI SDK with a phenomenal developer experience to help developers write less code and move fast. Use any LLM, build complex memory agents, compose pipe agents into a pipeline. The SDK is designed for Python, JavaScript, TypeScript, Node.js, Next.js, React and the likes.

Langbase is an API-first platform delivering exceptional developer experience. Our APIs are simple, intuitive, and designed for seamless integration. With clear documentation, practical code examples, and responsive community support, we help you build quickly and efficiently.

Authentication
Core functionality
Next steps

Authentication

The Langbase SDK uses API keys for authentication. You can create API keys at a user or org account level. Some SDK methods like when running a pipe allow you to specify a pipe specific API key as well.

Create an .env file in the root of your project and add your Langbase API key.

.env

LANGBASE_API_KEY=xxxxxxxxx

Replace xxxxxxxxx with your Langbase API key.

With Langbase SDK, you can set your API key as follows:

TypeScript

import {Langbase} from 'langbase';

const langbase = new Langbase({
	apiKey: process.env.LANGBASE_API_KEY
});

Important

Treat your API keys like passwords. Keep them secret — use only on the server side.

Remember to keep your API key secret! Your Langbase API key is server side only. Never share it or expose it in client-side code like browsers or apps. For production requests, route them through your own backend server where you can securely load your API key from an environment variable or key management service.

Core functionality

Langbase SDK provides the following core functionality:

Pipe

Use the SDK to manage the pipes in your Langbase account. Create, update, list, and run AI Pipes

Memory

Use the SDK to programmatically manage memories in your Langbase account. Since documents are stored in memories, you can also manage documents using the SDK.

Workflow

Use the SDK to programmatically manage workflows in your Langbase account.

Workflow

Agent

Use the SDK to programmatically manage agents in your Langbase account.

Agent

Threads

Use the SDK to programmatically manage threads in your Langbase account.

Parser

Use the SDK to parse text into structured data.

Parser

Chunker

Use the SDK to chunk text into smaller pieces.

Chunker

Embed

Use the SDK to embed text into a vector space.

Embed

Tools

Use the SDK to manage tools in your Langbase account.

Explore code examples

Streaming text works differently in Node.js vs browser. Please check out different examples like the Next.js examples or the React example.

Next steps

Time to build. Check out the quickstart examples or Explore the API reference.

Documentation