I’ve been working on the A2A Utils [1] package, a comprehensive set of utility functions for using A2A servers (remote agents). It has been three weeks in the making, and is based on nearly a year’s experience using A2A servers in production. The A2A MCP Server [2] and OpenClaw A2A Plugin [3] are wrappers around it, and it will power other packages in the near future. If you are planning on using A2A servers, I highly encourage you to read through the documentation for 30 minutes. I promise it will save you at least 10x that time!

A quick introduction to A2A. A2A standardises agent discovery, communication, and authentication. The protocol introduces the concept of an Agent Card, a JSON object containing the agent’s name, description, skills, accepted inputs, outputs, and authentication methods. It also defines a Message, a Task (a unit of work), an Artifact (the output of a Task), and a Part (a fundamental object for Messages and Artifacts that can represent text, data, and files).

Most people associate A2A with multi-agent systems, but it also serves as a framework for deploying agents. You get a standardised API endpoint for sending text, data, and files from any A2A compatible SDK, UI, or app. Agent Cards can be used to catalog and search agents. And A2A was explicitly designed for long-running, asynchronous tasks with support for polling, streaming, and webhooks. To learn more, see What is A2A? [4]

Check the GitHub discussion out, where I compare sending a Message and polling a Task with the A2A SDK and A2A Utils. I think it's much more elegant! I would love to hear your thoughts and welcome feedback.

Links:

[1] A2A Utils: https://github.com/a2anet/a2a-utils [2] A2A MCP Server: https://github.com/a2anet/a2a-mcp [3] OpenClaw A2A Plugin: https://github.com/a2anet/openclaw-a2a-plugin [4] What is A2A?: https://a2a-protocol.org/latest/topics/what-is-a2a/#core-ben...

California officials charge 21 people in hospice fraud ring exceeding $250M

You can have an RSS dependent website in 2026

DOJ Top Antitrust Litigators Exit After Ticketmaster Accord

PutHouse – Automated options trading to earn income with your stocks

Amnesty International Marks '1,000 Hours' Of Iran's Internet Blackout

State Court Denies Meta's Section 230 Immunity Claim in Social Media Suit

Windows Secure Lock Screen clock may appear up to 30 seconds behind

Show HN: Whirligig

(MSN) Mexico is moving toward universal healthcare by 2027

Anthropic PBC Risk Assessment Report (Unredacted) [pdf]

Small Models Are Smart Enough

Decentralized AI from Scratch (Python Tutorial) [video]

Artemis II returns to Earth, splashdown in four hours

Show HN: A2A Utils – a comprehensive set of utility functions for A2A servers

Book Review: Klara and the Sun

The Iceberg Index: Measuring Skills-Centered Exposure in the AI Economy [pdf]

Show HN: I built a site that shows every world event you lived through

Trump-appointed judges refuse to block Trump blacklisting of Anthropic AI tech

Estimated effects of food taxes and subsidies on health, economics in Australia

Interventions: Trying to train a better model in the cloud

PCBWay sponsorship: full-size SD module for Arduino projects

Anthropic has just built an AI that could take down the internet

Hikaru Nakamura Is Not a Chess Player Anymore. He Is Your Boss

Whitepaper: Physics as a Service – edge networks as deepfake detectors [pdf]

Artemis II heat shield has problems

Show HN: Pensabot – second brain notes in a chat

Building an Open-Source Peer-to-Peer Social Media Protocol on IPFS

Google Confirms March 2026 Core Update Is Complete

OpenPGL Becomes an Academy Software Foundation Project

Franklin's bad ads for Apple ][ clones and the beloved impersonator they depict

Ask HN: Its either I or Agent code. Both of us on same codebase is a disaster