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 |
|---|---|---|---|
| a2a-agent-discoverysource codeOpenClaw Skill for agent discovery, Agent Cards, ITINAI publishing, and A2A delegation | 3 | not reported | 2026-05-29 |
| itinaisource codeA2A Agent Board: Publish · Find · Use with itinai.com | 3 | Python | 2025-01-11 |
| Agent-Reliability-and-Evaluation-Labsource codeProduction reliability, benchmarking, and evaluation layer for MCP agent runtimes — protocol negotiation, A2A | 3 | Python | 2026-08-18 |
| a2a-phpsource codeA2A PHP SDK - PHP implementation of the AI A2A (Agent-to-Agent) Protocol (v0.2.5-0.3.0) | 3 | PHP | 2025-07-10 |
| a2a-swiftsource codeAbout Community Swift SDK for the Agent2Agent (A2A) Protocol | 3 | Swift | 2026-04-13 |
| beam-protocolsource codeSMTP for AI agents. The open communication protocol for agent-to-agent communication. 🌊 | 3 | TypeScript | 2026-03-03 |
| agnarasource codeAgnara is a Python 3.14-native capability framework for building modern services for humans, apps and AI agent | 3 | Python | 2026-09-01 |
| capiscio-sdk-pythonsource codeRuntime security middleware for A2A (Agent-to-Agent) protocol agents. Provides always-on validation, signature | 3 | Python | 2025-10-09 |
| trtc-ai-build-quicklysource codeQuickly build real-time AI voice conversation apps with TRTC. Supports multi-agent selection, LLM integration, | 3 | JavaScript | 2025-04-24 |
| foxbooksource codeVerifiable agent identity for A2A and MCP. Cryptographic claims, append-only transparency log, recovery-key re | 3 | TypeScript | 2026-04-21 |
| Fabric-MCP-Agent2Agentsource codeStep by step reference implementation for setting up data agents and integrating agent with Copilot Studio | 3 | Jupyter Notebook | 2025-09-30 |
| a2a-amqpsource code Production-ready AMQP adapter for A2A protocol enabling distributed task processing, event sourcing with Lavi | 3 | TypeScript | 2025-11-10 |
| contextforge-data-planesource codeContextForge Gateway RS - Small, fast and fun dataplane for ContextForge gateway ...like Ford Focus RS | 3 | Rust | 2026-04-10 |
| spring-ai-recipes-learningsource codeSpring AI 实战教程 🚀 ChatClient → RAG → MCP → Agent → A2A，24 个手写模块循序渐进（Spring Boot 4.1 + Spring AI 2.0 + Java 21） | 3 | Java | 2026-07-11 |
| iso-27001-ai-mcpsource codeMEOK AI Labs MCP Server | 3 | Python | 2026-04-14 |
| a2a-langgraph-agentsource codeA sample project to demonstrate how a langgraph ReAct agent can be wrapped with the A2A protocol | 3 | TypeScript | 2025-07-01 |
| azd-ai-autonomous-agentsource codeAzure AI integration of customer users with C# applications and enterprise data, using OAuth 2.0 token intelli | 3 | C# | 2026-02-23 |
| Mikroserwisy-Revisitedsource code[PL] Mikroserwisy 6 lat później czyli... jak nie utonąć 😉 | 3 | C# | 2026-02-28 |
| a2adk-templatesource code이 샘플은 에이전트 개발 키트(ADK)를 사용하여 A2A 서버로 호스팅되는 간단한 "weather_time_agent" 에이전트를 만듭니다. | 3 | TypeScript | 2025-05-26 |
| agenttapsource codeReal-time debugging proxy for Agent2Agent (A2A) multi-agent systems | 3 | not reported | 2026-04-05 |
| dsh-a2a-agentsource codeExpose a DeepSeek Harness agent over the Agent2Agent (A2A) protocol: agent card, JSON-RPC, LLM replies. | 3 | JavaScript | 2026-08-14 |
| fuseraft-clisource codeMulti-agent coordination framework with runtime verification of agent contracts. | 3 | C# | 2026-05-03 |
| bizysource codeBizy is the first rules and logic layer that machines, engineers and business stakeholders can directly config | 3 | Python | 2025-07-26 |
| .githubsource codeGoPlausible delivers Identifiable and verifiable AI and Agentic Tooling / Infrastructure powered by Algorand, | 3 | TypeScript | 2022-08-10 |
| HS58source codeAI Provider Templates & Docs for Handshake58 — Bittensor Subnet 58 powered by DRAIN Protocol | 3 | TypeScript | 2026-02-13 |
| get-a-roomsource codeDisposable collaboration rooms for AI agents working across machines and tools | 3 | TypeScript | 2026-08-05 |
| YOAP-A2Asource codeYOAP - Open Agent-to-Agent Protocol for connecting people through AI Agents. Like open-source matchmaking. | 3 | JavaScript | 2026-03-07 |
| Confersource codeYour AI confers, with anyone's — an open A2A protocol platform where AI Agents talk to each other on behalf of | 3 | TypeScript | 2026-05-25 |
| a2a-debuggersource codeThe ultimate A2A agents troubleshooter | 3 | Go | 2025-06-16 |
| awesome-a2asource codeA curated list of A2A-compatible agents that are tested and fully operational | 3 | not reported | 2025-06-07 |
| n8n-agentsource codeA2A agent server specialized in generating and automating n8n workflows | 3 | Go | 2025-09-05 |
| jamjet-a2asource codeStandalone Rust SDK for the A2A (Agent-to-Agent) protocol. Used by JamJet's delegation layer. | 3 | Rust | 2026-03-19 |
| ai-orchestration-governance-infrastructuresource codeAI Orchestration Governance Infrastructure (AOGI) is a sandbox designed for agentic workflows. Automated GDPR/ | 3 | Python | 2026-05-07 |
| semantic-kernel-agent-a2a-protocol-examplesource codeSemantic Kernel A2A protocol and A2A Discovery Service Example | 3 | C# | 2025-07-24 |
| JuntoAI-A2Asource codeAgent 2 Agent Negotiation Sandbox | 3 | Python | 2026-03-31 |
| gemotsource codeThe deliberation & governance layer for autonomous organizations. Built like an institution: verifiable audit | 3 | Go | 2026-03-28 |
| agentbussource codeThe open-source event bus for AI agents. Webhooks in. Agent actions out. | 3 | TypeScript | 2026-02-07 |
| arr-mcpsource codeArr related MCP and A2A / AG-UI Agent | 3 | Python | 2026-02-01 |
| systems-managersource codeSystem-Manager will update your system and install/upgrade applications. Supports Agentic AI through MCP Serve | 3 | Python | 2022-10-08 |
| google-a2asource codeAbout Pure java implementation of Google A2A protocol. This project demonstrates how to build an A2A-compliant | 3 | Java | 2025-09-03 |
| meeposource codeA local, privacy-first AI agent (Rust) that connects LLMs to your email, calendar, browser, code, and messages | 3 | Rust | 2026-02-08 |
| share-htmlsource codeShare sandboxed HTML previews with public-unlisted or access-key private links. Includes a remote MCP server f | 3 | TypeScript | 2026-05-25 |
| mailbussource codeFirst email CLI tools for agents to facilitate inter-agents communtions and collaboration | 3 | Go | 2026-03-29 |
| multi-agent-creative-studiosource codeAI-powered multi-agent system for creative content generation and studio workflow automation | 3 | Python | 2025-12-21 |
| LeapRAGsource codeLeapRAG is an open-source platform that integrates advanced RAG technology with Google’s A2A protocol, enablin | 3 | Python | 2025-05-15 |
| impacthon2026-MXPNJDsource codeWeb portal for protein structure prediction and 3D visualization — no HPC expertise required. Built on AlphaFo | 3 | Python | 2026-04-10 |
| a2a-cppsource codeC++20 SDK for the Agent2Agent (A2A) Protocol: build A2A clients and servers with REST, JSON-RPC, gRPC/protobuf | 3 | C++ | 2026-04-15 |
| visual-commerce-gemini-3-alloydbsource codeBuild an autonomous supply chain with Gemini 3 Flash Code Execution & AlloyDB AI ScaNN. Deterministic vision + | 3 | Python | 2026-02-13 |
| moltrust-apisource codeMolTrust Protocol — AI Agent Trust Infrastructure | 3 | Python | 2026-03-29 |
| CELLOsource codePrivate peer-to-peer identity, trust, and verification infrastructure for agent-to-agent communication — agent | 3 | TypeScript | 2026-04-06 |
| NEOXLINK-SDKsource codeNEOXLINK-SDK: Python library from natural language to actionable procurement—UNSPSC (code + name), Structured | 3 | Python | 2026-04-16 |
| orbit-vsxsource codeVS Code developer tool for MCP health monitoring, Debug Recorder session history, and A2A agent exploration. | 3 | TypeScript | 2026-05-27 |
| a2a-security-examplessource codeExample A2A agent implementations with security best practices and input validation | 3 | not reported | 2026-04-09 |
| oap-specsource codeThe vendor neutral standard for how autonomous agents discover, invoke, pay for, govern, and audit the tools a | 3 | JavaScript | 2026-05-02 |
| openlinker-coresource codeOpen-source control plane for self-hosted AI Agents: registry, runs, workflows, User Tokens, A2A/MCP APIs, and | 3 | Go | 2026-06-22 |
| docssource codePrivate MCP people matching for AI agents. No public listings; contact unlocks only on a real fit. | 3 | not reported | 2026-06-04 |
| Orbination-AI-Desktop-Vision-Controlsource codeEnable AI to interact with Windows apps by viewing screens, reading UI, clicking, typing, and automating tasks | 3 | C# | 2026-03-23 |
| VegaMCPsource codeProduction-grade MCP Server and Command Center providing a 10-agent autonomous swarm, persistent semantic memo | 3 | TypeScript | 2026-02-23 |
| pch-integration-examplessource codeIntegration examples for PathCourse Health — LLM inference via USDC on Base. Python and Node.js clients showin | 3 | Python | 2026-03-29 |
| graph-advocatesource codeGraph Protocol routing agent — routes multi-agent data requests to Token API, Subgraph Registry, or Substreams | 3 | Python | 2026-03-15 |