Three voice-agent backends (LiveKit, OpenAI Realtime, Google ADK Live) sharing one console interface, each instrumented for LangSmith

Facilitating high-level interactions between Wasm modules and JavaScript

The batteries-included agent harness.

Browser-first shell runtime in Rust with Bash-compatible syntax, virtual filesystem, pyodide-integration and sandboxed execution

How we built Witan - four months of engineering an LLM spreadsheet agent

A deepagent to witnessing slowdowns in your test runs.

Generate static types from OpenAPI specifications

Langchain Voice Agent with Inworld TTS

The batteries included agent harness.

Serverless AI agent using LangChain.js and Model Context Protocol (MCP) integration to order burgers from a burger restaurant

An AI Hedge Fund Team

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

💡 Use the right package manager

Build resilient agents.

Access to Anthropic's safety-first language model APIs in TypeScript

LangChain for Go, the easiest way to write LLM-based programs in Go

Official JavaScript / TypeScript library for the OpenAI API

Mastra is the modern TypeScript framework for AI-powered applications and agents.

The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents

Specification and documentation for the Model Context Protocol

Readymade evaluators for your LLM apps

Framework to build resilient language agents as graphs.

The agent engineering platform

A TypeScript library for building real-time, event-driven applications with XState and Cloudflare Workers. Seamlessly manage distributed state machines and actor-based systems.

Declarative streams for Typescript

Web framework built on Web Standards

A curated list of 120+ LLM libraries category wise.

Observable API proposal

Durable Object Groups