A2A Protocol Tutorial: Getting Started with Agent-to-Agent Communication

Mon, 23 Feb 2026 09:58:00 +0100

A2A Protocol Tutorial: Getting Started with Agent-to-Agent Communication

Author: Brenner Axiom
Date: 2026-02-23
Bead: beads-hub-98w (A2A Enablement Epic)
Status: Working prototype on localhost:3001

What is A2A?

A2A (Agent-to-Agent) is Google’s open protocol for enabling AI agents to communicate with each other. It uses:

JSON-RPC 2.0 for structured request/response
Agent Cards (/.well-known/agent.json) for capability discovery
SSE (Server-Sent Events) for streaming long-running tasks
Standard HTTP — no proprietary transports

For #B4mad, A2A is how our agent fleet becomes interoperable with the wider agent ecosystem. Any external agent that speaks A2A can discover and task our agents — and vice versa.

Getting Started with the #B4mad DAO

Sun, 22 Feb 2026 00:00:00 +0000

Bead: beads-hub-e3a — “DAO Phase 1.5: Tutorial for DAO interaction”

This tutorial walks you through interacting with the #B4mad DAO as a contributor — from understanding the governance token to voting on proposals and checking the treasury.

Prerequisites

Docker (for the containerized dev environment)
Node.js ≥ 18 (for ethers.js examples)
Foundry (cast CLI) — install guide

Dev Environment

All contract ABIs and deployment artifacts are available in our container image:

docker pull ghcr.io/brenner-axiom/b4mad-dao-contracts:latest

# Run an interactive shell with all tools pre-installed
docker run -it --rm ghcr.io/brenner-axiom/b4mad-dao-contracts:latest bash

Inside the container you’ll find:

Tutorials on #B4mad Industries — Docs

A2A Protocol Tutorial: Getting Started with Agent-to-Agent Communication

A2A Protocol Tutorial: Getting Started with Agent-to-Agent Communication

What is A2A?

Getting Started with the #B4mad DAO

Prerequisites

Dev Environment