A curated list of Agent-to-Agent (A2A) libraries and SDKs, organized by programming language.
awesome-a2a-libraries is a growing project in the AI payments / x402 ecosystem, focused on a2a, a2a-mcp, a2a-protocol, agent-to-agent. It currently has 22 GitHub stars and 6 forks, and sits alongside related tools like agentic-economy-boilerplate, agentic-rag-a2a-mcp, a2a-x402.
🚀 The Rosetta Stone for Agentic Payments - One vending machine, 5+ protocol implementations. Get from zero to working agentic payments in 5 minutes.
A unified AI agent system integrating Retrieval-Augmented Generation (RAG), Agent-to-Agent (A2A) communication, and Model Context Protocol (MCP) for document processing, web search, and intelligent task delegation.
The A2A x402 Extension brings cryptocurrency payments to the Agent-to-Agent (A2A) protocol, enabling agents to monetize their services through on-chain payments. This extension revives the spirit of HTTP 402 "Payment Required" for the decentralized agent ecosystem.