A2A directory

Every measured A2A repository, most followed first. Each entry carries its measured history, licence and maintenance status.

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A2A directory

ProjectStarsLanguageCreated
a2a-template-langgraphsource codeA production-ready agent server built with LangGraph that implements the Agent-to-Agent (A2A) protocol9Python2025-04-16
FoodSnapAIsource codeA web application that analyzes food and creates a recipe for cooking it.9TypeScript2025-06-07
ClawPiggysource code P2P token recycling network for AI Agents. Put unused tokens into a piggy bank, then cashing them out as help9TypeScript2026-02-09
OpenSINsource codeOpenSIN Core — 310+ packages across 25+ domains. The most comprehensive open-source AI agent system in the wor9Python2026-03-23
openspawnsource codeOpenSpawn — An open source multi-agent coordination platform9TypeScript2026-02-06
awesome-agentic-commercesource codeA curated list of awesome Agentic commerce, Universal Commerce Protocol (UCP), Agentic payments protocol (AP2)9not reported2026-01-19
protoAgentsource codeTemplate for building protoLabs A2A agents on LangGraph — fork me9Python2026-04-17
agents-integration-patternssource codeA catalog of integration patterns for multi-agent AI systems — the missing vocabulary between Enterprise Integ9not reported2026-06-15
onitsource codeOnIt is an AI agent harness for automation.9Python2026-02-03
Aidresssource codeThe coordination layer for autonomous AI agents8Python2026-06-10
gemini-srvsource codeAn http server wrapper to gemini-cli8Go2025-08-27
a2a-bridgesource codeAgent-to-agent bridge — Claude Code, Codex, OpenClaw, Hermes Agent, Gemini CLI, Zed & VS Code agents finally t8TypeScript2026-04-12
agentmeshsource code🤖🕸️ Production-grade multi-agent orchestration framework powered by Pregel BSP. Build sophisticated AI workflo8Go2025-09-11
a2acastsource codeZero-infrastructure A2A messaging between AI agents on different machines — Claude, ChatGPT/Codex, Copilot, an8Python2026-07-10
aapsource codeAgent Alignment Protocol — the missing trust layer for the agent stack8Python2026-02-01
protoVoicesource codeFull-duplex voice agent on Pipecat — adaptive barge-in, Fish Audio prosody, A2A streaming, delivery-policy inb8Python2026-03-27
Antigravity-Super-Skill-Architecturesource codeA Federated Multi-Agent System (MAS) architecture for Google Antigravity. Orchestrates specialized AI Skills (8Python2026-01-25
society-protocolsource codeConnect your AI agents. One command. P2P multi-agent collaboration.8TypeScript2026-03-11
A2A-docs-zhsource codeAgent2Agent Protocol (A2A) 中文文档 8HTML2025-04-12
systemprompt-coresource codeAI governance infrastructure for agentic systems. Rust library behind systemprompt.io — MCP, A2A, OAuth2, audi8Rust2025-10-22
agentic-economy-boilerplatesource code🚀 The Rosetta Stone for Agentic Payments - One vending machine, 5+ protocol implementations. Get from zero to 8JavaScript2025-11-10
moltspaysource codeBlockchain payment infrastructure for AI Agents8TypeScript2026-02-14
a2a-retail-demosource codeA2A protocol demo: Orchestrated AI agents for retail using Google ADK, LangGraph, and Vertex AI Search7Python2025-05-27
AgentX-JSsource codeAgentX Javascript/Typescript SDK. Build multi-agent AI workforce. 7TypeScript2025-06-25
LOOMsource codeDynamic Agent-to-Agent (A2A) task graph generation, subtask independence verification, and parallel multi-agen7Python2026-08-29
learn-agentic-aisource codeLearn Agentic AI using Dapr Agentic Cloud Ascent (DACA) Design Pattern and Agent-Native Cloud Technologies: Op7not reported2025-05-11
nautilus-compasssource codeReliability layer for multi-agent setups — keep agents coordinating without an orchestrator. Cross-dialog cont7Python2026-04-27
agent-architecturesource codeThe 21 agentic design patterns, distilled to concepts (no code) — a design-phase reference for building AI age7not reported2026-06-24
agent-bridgesource codePush-based agent-to-agent communication for running AI agent harness sessions across machines. MCP/channel plu7JavaScript2026-04-12
agent2agentsource codeAgent2Agent protocol ruby -- Check out the step-by-step examples in the docs.7Ruby2026-04-30
a2a-gosource codeAn open protocol enabling communication and interoperability between opaque agentic applications for Go.7Go2025-04-11
devto-agentsource codeBuild and deploy an autonomous Devto Agent capable of interacting with the Dev.to platform, powered by A2A (Ag7Python2025-05-31
ziyan-mailbussource codeA lightweight, file-based A2A (Agent-to-Agent) message bus for multi-agent teams. Zero middleware dependency —7Python2026-05-21
agent-communication-protocolsource codeAgent Communication Protocol (ACP): zero-server, P2P agent-to-agent communication for AI agents.7Python2026-03-18
memroossource codeMemroOS / memroos: memory OS and governance layer for AI agents, agent workflows, dispatch, proof, and context7TypeScript2026-04-08
vokosource codeLocal-first Agent communication runtime and gateway for A2A, MCP, E2EE messaging, REST/Webhook, and multi-agen7JavaScript2026-07-29
Build26-DEM333-how-foundry-integrates-with-open-source-frameworks-and-toolssource codeDemo building a practical agent using open-source tools then operationalizing in Microsoft Foundry — MCP, Play7Python2026-04-09
salesforce-agentforce-a2a-wrappersource codeAn example implementation of a financial AI Agent built with Agentforce and made accessible through the A2A pr7TypeScript2025-12-11
openagorasource codeThe open square where AI agents meet. A2A registry with live health checks, payment schemes, and community dis7TypeScript2026-03-29
OpenSIN-documentationsource codeOfficial documentation for OpenSIN - docs.opensin.ai7Python2026-04-04
twilio-signal-2025-keynote-demosource codeTwilio Signal's 2025 keynote demonstration. Featuring multi-agent voice AI using Twilio, Azure Foundry, and Az7TypeScript2025-05-12
HushKitsource codePrivate Agent-to-Agent Communication on a Public Chain7TypeScript2026-03-14
dsh-a2asource codeDSH 的 A2A v1.0 双端插件:Client 发现远程 Agent 并映射为工具,Server 对外提供 JSON-RPC/SSE 端点与连接面板 ｜ A2A v1.0 dual-mode DSH plugin:7TypeScript2026-08-17
a2a-mcp-openroutersource code7Python2025-06-04
Agentssource codeInnovative AI agent implementations using LangGraph—featuring ReAct, RAG (Corrective, Self, Agentic), chatbots7Jupyter Notebook2025-06-01
erc8004-agentssource codeCreate and register ERC-8004 trustless AI agents on any EVM chain — Ethereum, BNB Chain, Base, Arbitrum, Optim7TypeScript2026-02-13
supplygraph-aisource codeAI-native Agentic AI platform for customs & HTS classification, tariff analysis, trade compliance and multi-ti7not reported2025-10-29
adk-gassource codeGASADK: Agent Development Kit for Google Apps Script. Build AI agents with Gemini API, MCP, A2A, Agent Skills,7JavaScript2026-05-18
agentbeaconsource codeMulti-agent orchestrator for AI coding tools6Rust2025-08-16
openclaw-a2a-bridgesource codeA2A protocol bridge plugin for OpenClaw — agent card, JSON-RPC endpoint, and remote agent tools6JavaScript2026-02-14
trust-over-ip-configurationssource codeOpenShift build and deployment configurations for the Trust Over IP components.6Shell2020-03-13
strands-base-agentsource codeComposition root for production agent services — fork, customize, ship. Built on the foundry-agent-* packages.6Python2026-06-22
hermes-a2a-gatewaysource codeA2A v0.3.0 协议的 Python 实现 — 让 Hermes Agent 互通6Python2026-04-21
fin-studiosource codeA modern fintech analysis platform powered by AI agents using Google's A2A (Agent-to-Agent) protocol for seaml6TypeScript2025-07-14
search-agentsource codeAn enterprise-ready Google Search Agent demonstrating secure Agent-to-Agent (A2A) communication using Google A6Python2025-08-09
orkasource codeA modular agent orchestration platform built in Rust — multi-channel messaging, priority queues, LLM integrati6Rust2026-03-22
unified-ai-systemsource codePublic Preview: self-hosted, protocol-first AI gateway and agent control plane for OpenAI, Anthropic, Gemini, 6JavaScript2026-04-27
A2A-XKCDsource codeA minimal A2A (Agent-to-Agent) compatible agent that fetches and displays XKCD comics.6Python2025-06-24
intent-outreachsource codeModel-agnostic, Claude-Code-native SDR orchestrator: research → enrich → outreach over your own data-provider 6JavaScript2025-10-31
switchboardsource codeProgrammable payments for AI agents — HTTP/402 + on-chain escrow + ZAP binary wire + gas budgets + nonce safet6HTML2026-04-03