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ProtocolProduction ReadyA2A

a2a-go

by a2aproject

Go SDK for the A2A agent-to-agent communication protocol

Go
Updated Jul 25, 2026
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Overview

Implements the A2A agent-to-agent protocol as a Go SDK for building interoperable agent clients and servers. Exposes client/server primitives, message schemas, and transport adapters so agents can reliably discover, authenticate, and exchange structured messages. Focuses on a lightweight, production-ready API surface for embedding A2A comms into Go-based agents and services. This Go SDK enables embedding the A2A Protocol into Go-based agents.

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The Value Proposition

As agents interact and delegate more work to one another, a stable protocol layer is required to compare behavior and track trust signals across boundaries. A Go implementation standardizes message formats, delivery guarantees, and auth patterns so evaluators and monitoring systems can observe consistent interaction traces. That consistency makes it easier to collect agent track records, run A2A evaluation suites, and integrate reputation layers like RepKit. See the A2A Protocol Pattern for design guidance.

Ideal For

Teams building Go-based agents or services that need a production-ready implementation of the A2A protocol for interoperable agent communication, and can leverage the Agent Registry Pattern to manage agent onboarding while aligning with the Open Agent Specification for interoperability.

Applications

  • Bootstrapping interoperable agent clients and servers in Go for multi-agent workflows
  • Instrumenting message flows to collect agent interaction logs and build agent track records
  • Integrating protocol-level auth and transport hooks so monitoring and evaluation tools can observe A2A traffic
Topics
a2aa2a-clienta2a-protocola2a-serveragent-serveragent-to-agentagentsaigomultiagent-systems+2 more
Keywords
a2amulti-agent trustagent-to-agentgolang
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