Frameworks & SDKs

agentOS

A virtual operating system for agents, with filesystem, execution, and orchestration in one lightweight library.

AgentScript

CodeAct Agent SDK with an AST-based code execution engine, enabling stop/start workflows, tool-level state management, and enhanced observability.

Agno

Build, run, and manage agent platforms.

AI SDK

The AI Toolkit for TypeScript, from the creators of Next.js.

Arcade MCP

MCP Server Framework and Tool Development library for building custom capabilities into agents.

Atomic

The verifiable runtime for coding agents. Run verifiable engineering loops with control, alignment, and confidence.

Ax

The pretty much "official" DSPy framework for Typescript

Capsule

The application platform for AI agents. App hosting, auth, messaging channels, payments, and polished UI — all built in.

Channels SDK

Bring any AI agent into Slack, Microsoft Teams, and the channels where work happens — with native, interactive UI.

Chat SDK

A unified TypeScript SDK for building chat bots with type-safe handlers, JSX cards, and multi-platform support—powered by Vercel

Cloudflare Agents

Build agents on Cloudflare—the platform designed for durable execution, serverless inference, and pricing that scales up (and down).

CODEWORK

AI agent toolkit for coding agents, unified LLM APIs, agentic workflows, tool harness and more.

DSPy

Program, don't prompt, your LLMs.

effect-agents

Five small agents, built with Effect v4 (beta). Each agent is just an Effect value. One Cloudflare Worker runs all of them.

eve

The Open Framework for Building Agents

Flint

🪄 Flint is a visualization language that lets AI agents reliably create expressive, good-looking charts from simple, human-editable chart specs.

Flue

Build durable AI agents and workflows with Flue

GitHub tools

GitHub tools and agents for the Vercel AI SDK, wrap GitHub's API as AI SDK tools ready to plug into any agent

iii

The latest docs on how to use iii, a new paradigm to effortlessly compose, extend, and observe every service in any system in real-time for the first time ever.

incur

CLI framework for agents and humans

Mastra

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

Nanocodex is a small, headless Rust agents SDK. It is a library first: embed it in your process, configure the agent and its tools, submit turns through a cheap handle, and decide whether to consume every event or only typed final results.

Noetic

Build AI agents you’d actually trust in production. Composable TypeScript primitives, memory that keeps token costs flat, and evals that catch regressions before users do.

Tinker

Tinker is a training API for researchers and developers.

Transformers

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.