A2A directory
Every measured A2A repository, most followed first. Each entry carries its measured history, licence and maintenance status.
A2A directory
| Project | Stars | Language | Created |
|---|---|---|---|
| mcp-ai-memorysource code🧠 Manage AI context seamlessly with the MCP server for storing and retrieving semantic memory across sessions.… | 1 | TypeScript | 2025-09-03 |
| cognitive-passportsource codeOpen, experimental specification (v0.1) for machine-readable trust and Cognitive Passports for autonomous… | 1 | JavaScript | 2026-07-20 |
| a2a_protocol_fundamentals_pythonsource codeA comprehensive travel planning system built with Agent2Agent (A2A) protocol, featuring specialized AI agents… | 1 | Python | 2025-08-15 |
| baseapi-hexagonal-architecturesource codeBaseAPI is a production-ready backend framework built with FastAPI, designed for rapid development of secure,… | 1 | Python | 2025-08-08 |
| Praetorium.Bridgesource codeGet your Agents communicate with each other | 1 | C# | 2026-04-19 |
| a2a-multi-agent-travelsource codeFive AI agents on five different frameworks (LangGraph, Google ADK, CrewAI, LlamaIndex, Pydantic AI)… | 1 | HTML | 2026-08-27 |
| forcedream-a2a-agentsource codeReal, standards-compliant A2A execution runtime -- 13 real, priced capabilities, billed and cryptographically… | 1 | not reported | 2026-07-20 |
| boundary-benchsource codeDeterministic crash tests for agent control planes: paired worlds, hard stops, budgets, scopes, approvals, and… | 1 | TypeScript | 2026-07-22 |
| threadmeshsource codeStop babysitting parallel coding agents: safe, verified handoffs without copy/paste, polling, or silent… | 1 | JavaScript | 2026-08-20 |
| kenya-a2asource codeKenyaA2A — Agent-to-Agent (A2A) protocol server for East African civic data. Query Kenya parliament, budgets,… | 1 | Python | 2026-04-21 |
| a2a-clisource codea terminal client for the Agent2Agent (A2A) Protocol | 1 | Go | 2026-08-07 |
| warroom-bridgesource codeA minimal, honest bridge for two AI agents that talk to each other under human governance. Zero dependencies,… | 1 | Python | 2026-08-13 |
| mastsource codeAgent infrastructure for unattended, library-embedded, multi-provider, durable workloads. Go, built on ADK v2.… | 1 | Go | 2026-06-14 |
| simpe-erpsource codeThis project is a light open-source ERP designed for start-ups and small companies. This can be deployed on… | 1 | Python | 2026-08-05 |
| agent-to-agent-demosource codeIn this demo, a Host Agent classifies user input, makes a routing decision, and forwards the request to the… | 1 | Java | 2025-09-27 |
| integrity.moltsource codeA2A security oracle for autonomous AI agents on Solana. Verifies counterparty legitimacy before x402… | 1 | JavaScript | 2026-02-26 |
| a2a-aclsource codePer-tool capability ACL + AAE envelope verification for agent-to-agent communication. Drop-in Express… | 1 | JavaScript | 2026-04-30 |
| a2a-callersource codeSender-side counterpart to a2a-acl. Express middleware that lets unauthenticated web traffic (visitors, LLM… | 1 | JavaScript | 2026-05-01 |
| ai-sdk-registry-brokersource codeVercel AI SDK tools for Universal AI Agent Discovery - 59,000+ agents across NANDA, MCP, A2A, Virtuals |… | 1 | TypeScript | 2026-01-20 |
| notaryossource codeCryptographic receipt system for AI agent accountability. Tamper-evident, hash-chained receipts with… | 1 | TypeScript | 2026-02-13 |
| ammp-mcpsource codeReference implementation of AMMP (Agentic Mentor-Mentee Protocol, draft-arturo-ammp-01), Mentoring track, on… | 1 | Python | 2026-05-10 |
| multi-agentsource codeThe definitive catalog of AI agent patterns. One definition, any framework. 27+ agents, 8 patterns, 6… | 1 | JavaScript | 2026-04-12 |
| hammad-pythonsource codeHarmoniously Accelerated Micro-Modules (for Application Development) | 1 | Python | 2025-06-12 |
| dsh-a2asource codedsh-a2a-server makes a DeepSeek Harness agent reachable over the A2A (Agent2Agent) protocol. It serves an… | 1 | TypeScript | 2026-08-17 |
| HuanLinksource codeAn A2A-based agent orchestration prototype for delegating tasks across specialized agents and runtimes. | 1 | TypeScript | 2026-06-13 |
| funduqsource codeThe seat between a caller and an agent provider: the agent stays where its owner runs it, funduq makes it… | 1 | Python | 2026-07-30 |
| a2a-didsource codeDID-based authentication for A2A Protocol - Sign and verify agent messages with did:web and did:ethr | 1 | TypeScript | 2026-01-02 |
| AI-agent-to-agentssource codeDự án thử nghiệm Google A2A để khám phá khả năng và tiềm năng của công cụ này | 1 | Python | 2025-03-21 |
| hyprdesksource codeOrchestrate a team of AI coding agents on your desktop — a router-leader delegates to workers over a local MCP… | 1 | Rust | 2026-07-09 |
| Multi-Agent-Customer-Service-System-with-A2A-and-MCPsource codeMulti-agent customer support system leveraging A2A (Agent-to-Agent) orchestration and MCP (Model Context… | 1 | Jupyter Notebook | 2025-11-27 |
| AGRI-SENSE_GUARDIANsource codeAn Innovative MultiAgent Ai System Built For The Kaggle X Google Capstone Hackathon, Leveraging Googles Adk… | 1 | Python | 2025-11-21 |
| multi-agent-patternssource code5 multi-agent patterns using Google ADK and A2A protocol — Agent Card Discovery, Delegated Specialization, MCP… | 1 | Python | 2026-05-11 |
| a2a-uisource codeLocal-first developer workbench for building, testing, and debugging Agent2Agent (A2A) protocol servers. | 1 | TypeScript | 2026-03-14 |
| Kled-AI-farming-botsource codeOrganize Kled-style AI farming workflows, prepare files, review submissions, and build upload-ready datasets… | 1 | TypeScript | 2026-04-19 |
| ironbook-a2a-extensionsource codeThis A2A extension defines how to enable Iron Book's zero trust policy-based access control for agents. | 1 | Python | 2025-08-25 |
| dsh-notifysource codeTask-monitoring notification plugin for DeepSeek Harness (dsh): turn/end alerts, human-confirmation with… | 1 | JavaScript | 2026-08-14 |
| pi-a2asource codeAgent-to-agent message bus for pi — decentralized LAN P2P, agents discover each other via mDNS and talk… | 1 | TypeScript | 2026-07-10 |
| DropAgentXmainsource code?? DropAgentX v3.0.0 - Social-commerce Telegram bot with AI agent, multi-faceted memory, identity RL, USDT… | 1 | Python | 2026-08-26 |
| grafana-agentsource codeA2A agent server for grafana dashboards automation tasks | 1 | Go | 2025-11-14 |
| a2a-research-agentsource codeThis project demonstrates multi-agent AI architecture using Google's A2A protocol. ResearchAgent searches… | 1 | Python | 2026-02-28 |
| bfa-sdksource codeSDK de código abierto en Python para el patrón Backend for Agents (BFA), extendido como un servidor de… | 1 | Python | 2026-07-08 |
| urusillasource codeExperimental no-install semantic language for AI agents: typed action/state, safe NL/JSON fallback, and… | 1 | Python | 2026-08-20 |
| claw-paysource codeModular crypto payment infrastructure for merchants and AI agents. x402 protocol, ERC-20 settlement,… | 1 | Go | 2026-04-11 |
| Medusasource codeAutonomous AI-to-AI coordination layer on MCP — turns isolated agents (Cursor, Claude Desktop, Windsurf) into… | 1 | JavaScript | 2026-04-05 |
| AuraAIsource codeMulti AI Agent System Build with Google ADK | 1 | Python | 2025-07-09 |
| DevToolssource codeAI-powered Developer Support System built on Google’s ADK to debug Django + MySQL apps. Handles error pages,… | 1 | Python | 2025-07-27 |
| arbitova-x402-examplesource codeProtect x402 agent-to-agent payments with Arbitova dispute arbitration | 1 | JavaScript | 2026-04-16 |
| maplebridge-opensource codeOpen examples for turning China sourcing requests into structured buyer intent, supplier fit signals, and… | 1 | not reported | 2026-03-15 |
| A2A-MQTTsource codeAgent to agent protocol using MQTT | 1 | Python | 2025-12-08 |
| Intentmesh-agent2agentsource codeIntentMesh is an open protocol and reference architecture for structured negotiation between autonomous… | 1 | not reported | 2026-03-11 |
| guildaidemosource codeEFL pronunciation assessment web/A2A app focused on syllable stress | 1 | Python | 2026-02-25 |
| neshsec-pocsource codeNative English Speaker Homograph Stress Exemplar Crowdsourcer proof of concept | 1 | TypeScript | 2026-02-28 |
| pi-telegramsource codeHierarchical agent orchestration system with JSON-RPC 2.0 unified architecture | 1 | TypeScript | 2025-10-14 |
| mcp-capability-planesource codeMCP capability plane — a real FastMCP server wrapping live web APIs, consumed cross-framework (OpenAI Agents… | 1 | Python | 2018-04-04 |
| DriftSentinelsource codeAgent 降智检测与自愈公评网络 — an immune system for the AI agent society | 1 | TypeScript | 2026-06-20 |
| Travel_Agent2Agentsource code基于Agent2Agent的旅行助手系统 | 1 | Python | 2026-01-18 |
| ODIN-projectsource codeOdin - Zero Trust AI Agent. Open-source autonomous LLM agent with CaMeL dual-LLM, IFC taint tracking,… | 1 | TypeScript | 2026-04-13 |
| A2A-Agent-Orchestration-Systemsource codeA distributed multi-agent system that orchestrates complex tasks across specialized AI agents using A2A… | 1 | Python | 2025-09-27 |
| A2A-Agent-Orchestration-Systemsource codeA distributed multi-agent system that orchestrates complex tasks across specialized AI agents using A2A… | 1 | Python | 2025-09-27 |
| agent-a2a-entra-id-authsource codeAgent-to-Agent (A2A) OAuth Identity Passthrough using Entra Id | 1 | Python | 2026-03-06 |