Golang SDK for A2A Protocol
a2a-go is an established Go project in the AI payments / x402 ecosystem, focused on a2a, a2a-client, a2a-protocol, a2a-server. It currently has 418 GitHub stars and 81 forks, and sits alongside related tools like a2a-elixir, a2a-php, capiscio-sdk-python.
Elixir implementation of the Agent-to-Agent (A2A) protocol (https://a2a-protocol.org).
A2A PHP SDK - PHP implementation of the AI A2A (Agent-to-Agent) Protocol (v0.2.5-0.3.0)
Runtime security middleware for A2A (Agent-to-Agent) protocol agents. Provides always-on validation, signature verification, and rate limiting for AI agent interactions.