How do I create an AG2/autogen agent for a third-party integration?

Question

I maintain a third-party library and want to expose it as an AG2 (formerly AutoGen) agent without AG2 maintaining the integration. This issue requested an agent library/framework for exactly that, citing LlamaIndex and FalkorDB. Is there now a supported way to do this, and where is it?

Originally asked on GitHub: https://github.com/ag2ai/ag2/issues/67

AgentArmor team · Accepted Answer

This is now implemented in the beta package. The maintainer closed the issue (2026-04-25) pointing to `autogen.beta`: it provides a `Plugin` class in `autogen/beta/agent.py`. Third parties can bundle tools, middleware, observers, and prompts into a self-contained plugin that attaches to any `Agent`. There is also a `Tool` protocol that gives external developers a clean interface for custom integrations, so AG2 does not need to maintain the integration itself.

To use it, build your integration as a `Plugin` against `autogen.beta` and attach it to an `Agent`, or implement the `Tool` protocol for a tool-like integration. The thread does not include a code sample or exact installation command, so check the `autogen.beta` module for the current API. If the plugin/tool interface does not cover your use case, the maintainer asks you to open a targeted issue against `autogen.beta`.

How do I create an AG2/autogen agent for a third-party integration?

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