“Slack”

Python and TypeScript SDK that lets an agent message people on email, Slack, Discord, Telegram and other channels through one handler.

Open-source SDK that connects AI agents to app front ends with chat UI, generative UI, shared state and human approvals; creator of the AG-UI protocol.

Open-source agent harness for stateful agents whose memory persists and improves with use, with a terminal UI, app server and TypeScript SDK.

Python framework for multi-agent teams and workflows, with a CLI and Docker, MCP and A2A deployment options.

Python framework and runtime for building agents, serving them over a REST API and MCP server, and managing them from a web control plane.

Python SDK for tracing agents and scoring their traces with prompt-based judges, to find failures in production.

C# framework on .NET for building multi-agent AI bots with plugins, RAG, MCP integration and a built-in admin UI.

Open-source Python framework for text and voice assistants; the open-source edition is in maintenance mode while Rasa moves to its CALM engine.