A2A directory

Measured A2A repositories

1. APM

   AI Plantation Management

   Origin

   github

   Language

   JavaScript

2. agent-ready-directory

   agent ready directory

   Origin

   github

   Language

   Python

3. agent-commons-connect

   Invitation-only AI agent community. Public applications and encrypted onboarding; private discussions.

   Origin

   github

   Language

   JavaScript

4. moltvest-web

   Investor news and relationship for MoltPost.com and for Emergence.Science

   Origin

   github

   Language

   TypeScript

5. dsh-fleet-mesh

   Session-aware mesh relay for DSH agents - Ed25519-signed receive route, delivery policy, outbound and registry libraries

   Origin

   github

   Language

   JavaScript

6. mesh-peer-registry

   Shared, language-agnostic peer registry for hermes-mesh and openclaw-mesh — Ed25519-signed registrations, HTTPS/TLS pinning, HSTS, and rate limiting.

   Origin

   github

   Language

   Python

7. openclaw-mesh

   OpenClaw mesh messaging — Ed25519-signed agent-to-agent relay, mesh vault discovery, and optional mesh-peer-registry integration.

   Origin

   github

   Language

   TypeScript

8. a2a-overview

   A2A (Agent2Agent) Protocol Quick Reference Portal - A bilingual (Chinese/English) static website for backend/agent developers.

   Origin

   github

   Language

   TypeScript

9. blocklace-a2a

   Cryptographic audit layer for A2A: hash-chained, signed blocks with equivocation detection.

   Origin

   github

   Language

   Python

10. KITE-GASLESS

    KiteTrace Platform: agent-native micropayment rails on Kite Testnet, using ERC8004 identity + x402 for verifiable ATAPI/A2A interactions.

    Origin

    github

    Language

    JavaScript

11. artha-a2a

    Archived. Moved to github.com/EndlessRay/asha-benchmarks (a2a/artha/).

    Origin

    github

12. asha-a2a

    Archived. Moved to github.com/EndlessRay/asha-benchmarks (a2a/asha/).

    Origin

    github

13. asha-benchmarks

    Asha, DNAi's medical AI agent: the same language model alone and inside Asha, same items, same grader. Per-item, re-gradable artifacts for HealthBench (5,000, Hard, Professional, Vishwanath 500), MedQA, psychosis-bench, enclomiphene-bench, a locked pediatric chart, plus model cards and A2A agent cards.

    Origin

    github

    Language

    Python

14. feng-a2a

    Archived. Moved to github.com/EndlessRay/asha-benchmarks (a2a/feng/).

    Origin

    github

15. harley-a2a

    Archived. Moved to github.com/EndlessRay/asha-benchmarks (a2a/harley/).

    Origin

    github

16. polymath-a2a

    Archived. Moved to github.com/EndlessRay/asha-benchmarks (a2a/polymath/).

    Origin

    github

17. sage-a2a

    Archived. Moved to github.com/EndlessRay/asha-benchmarks (a2a/sage/).

    Origin

    github

18. pactwire

    Archived: no longer maintained. Retired 2026-10-10. Reference implementation of agent-to-agent escrow (A2A + MCP); not maintained.

    Origin

    github

    Language

    JavaScript

19. aws-agentic-stack-starter

    Companion repo for Golden Jacket Field Notes Week 2: Reference implementations of Strands, AgentCore, MCP, and A2A.

    Origin

    github

    Language

    Python

20. a2a-crewai-hf

    Learning project with A2A, CrewaAI and Huggingface

    Origin

    github

    Language

    Python

21. times-rare-server

    Source for Times Rare — the MCP + x402 + A2A discovery canvas for the AI agent economy. Live at timesrare.com.

    Origin

    github

    Language

    JavaScript

22. Hermes-A2A

    Hermes-A2A: one-line inter-agent tasks over the open A2A v1.0 protocol for Hermes Agent. Reply formatting, audit-log lookup, and an approval gate before memory/credential/config writes. Wraps the bundled A2A platform plugin with a friendlier tool surface (a2a_bridge_send, _confirm, _audit, _list_peers, _history).

    Origin

    github

    Language

    Python

23. agent-gateway

    APIPOOL — Intelligent API marketplace for AI agents. 4-pillar scoring: self-learning, predictive, anomaly detection, contextual understanding.

    Origin

    github

    Language

    TypeScript

24. a2a-movie-chatbot

    A smart movie chatbot built with the Agent-to-Agent (A2A) protocol and Google’s Genkit AI. It features real-time movie data, quote generation, and interactive chat via API and CLI. Ask ChatGPT

    Origin

    github

    Language

    TypeScript

25. Arsenal-Quant-Project

    L402 payment layer implemented; free tier active, paid tier not yet in service. Deterministic MEV, Impermanent Loss & Slippage oracle for autonomous DeFi agents.

    Origin

    github

    Language

    Python

26. ai-engineering-hub

    A collection of LLM-powered Real-World applications and projects

    Origin

    github

    Language

    Python

27. dsh-goodjob

    Multi-agent operations workspace for DeepSeek Harness.

    Origin

    github

    Language

    TypeScript

28. ai-catalog

    Build, validate, discover, and resolve ai-catalog.json files for the Agentic Resource Discovery (ARD) spec. TypeScript, zero runtime deps.

    Origin

    github

    Language

    TypeScript

29. bot-rooms

    Agent-to-agent chat rooms for research, independent review, and coordination. MCP tools, HTTP API, and agent skill.

    Origin

    github

30. a2a-message-provenance

    Draft A2A extension: per-message JWS provenance — ES256-signed, card-version-pinned receipts for Agent2Agent messages, verifiable live or in later audit.

    Origin

    github

    Language

    JavaScript

31. March7

    Twin-Soul Agent architecture — two independent agents communicating via A2A protocol, with a self-healing mechanism for background agent processing.

    Origin

    github

    Language

    Python

32. agent

    Verifiable live-data for AI agents: hosted keyless MCP server + A2A agent (protocolVersion 1.0). Every datapoint Ed25519-signed and reliability-graded. Verifier: github.com/dynamicfeed/df-verify

    Origin

    github

33. agent-ready-cto

    Machine-readable profile and capability catalog that AI agents can read to learn what I work on and how to reach me.

    Origin

    github

    Language

    HTML

34. a2a-test-framework

    No description was supplied by the source.

    Origin

    github

    Language

    Ruby

35. agmesh

    Librería de comunicación entre agentes de IA sobre el protocolo A2A (Agent2Agent).

    Origin

    github

36. core

    One protocol for every AI agent. GetAIP connects agents, tools, and services through governed, durable workflows—with MCP and A2A compatibility.

    Origin

    github

    Language

    Rust

37. a2a

    OCaml SDK for the A2A protocol

    Origin

    github

    Language

    OCaml

38. AKIRA-AI-Voice-Assistant

    Automate laptop tasks and system controls using voice commands with this Python-based AI assistant.

    Origin

    github

    Language

    Python

39. a2a-java-sdk-spring

    A2A Java SDK for Spring Framework. Including server, Spring Boot auto configuration, Spring AI tools, and Spring AI examples.

    Origin

    github

    Language

    Java

40. axguard

    Adversarial security testing for AI agents — MCP, A2A, x402/L402, and live tool-use. Tests as YAML, evidence as JSON.

    Origin

    github

    Language

    Python

41. a2a-msg

    Self-hosted LAN mailbox MCP server that lets AI coding agents send text and files to each other across machines

    Origin

    github

    Language

    JavaScript

42. team-mailbox

    Self-hosted LAN mailbox MCP server that lets AI coding agents send text and files to each other across machines

    Origin

    github

    Language

    JavaScript

43. it-helpdesk-assistant

    🤖 AI-powered IT Helpdesk Assistant with A2A orchestration layer, MCP integration, and Streamlit chat interface for intelligent ticket querying and support

    Origin

    github

    Language

    Python

44. it_ticket_intelligent_agent

    🎫 A multi-agent AI system for intelligent IT ticket management with NLP-powered trend analysis, A2A protocol communication, and MCP tools — built with Python and Streamlit

    Origin

    github

    Language

    Python

45. a2a-grocery

    A2A Grocery - the agentic hub for retail grocery procurement

    Origin

    github

    Language

    Python

46. sample-multi-agent-a2a

    Multi-agent orchestrator on GreenNode AgentBase: delegates over A2A to travel-buddy and zalo-restaurant and calls MCP tools through the MCP Gateway (LangGraph, parallel delegation, streaming)

    Origin

    github

    Language

    Python

47. grikard

    Public profile README and artifact index for Gary Rikard’s enterprise AI strategy, workflow economics, and control-plane architecture work.

    Origin

    github

48. a2a-lab

    A2A (Agent-to-Agent) Protocol lab with dynamic agent discovery, JSON-RPC 2.0 communication, and registry-based multi-agent orchestration using Strands Agents and FastAPI

    Origin

    github

    Language

    Python

49. a2a-agents-secure-verification-poc

    a Python proof-of-concept (PoC) application for security formal verification of LLM Agents using Google A2A (Agent-to-Agent) protocol.

    Origin

    github

    Language

    Python

50. Catering_Chain_Agent

    基于 A2A + MCP 协议的餐饮连锁多 Agent 协作系统：协调 Agent 调度客诉/排班/库存三个专家 Agent，做跨数据源根因分析并给出改善建议

    Origin

    github

    Language

    Python

51. easy-codex-a2a

    Expose one persistent Codex conversation through A2A 1.0, with optional private Tailscale access.

    Origin

    github

    Language

    Python

52. staylocoworks-agent-storefront

    Agent-ready compliance review services by Staylocoworks. Consent-first, human-reviewed, invoice-first payment. For bot-to-bot discovery.

    Origin

    github

53. growaify-public

    Growaify — agent commerce platform. Public interface: A2A agent card, Python/JS SDKs, OpenAPI contract, service catalog, MCP integration.

    Origin

    github

    Language

    Python

54. sssnack-plugin

    Agent-native MCP, CLI, and skill for discovering and publishing visual work on SSSNACK.

    Origin

    github

    Language

    JavaScript

55. xong

    A calm, self-hosted task system with shared state for people and AI agents.

    Origin

    github

    Language

    Python

56. agent-delegated-authority

    Agent Delegated Authority Protocol (ADAP) v0.1 Public Draft. An open protocol for delegated authority between AI agents.

    Origin

    github

    Language

    TypeScript

57. agent-relay

    Local agent-to-agent messaging over MCP for Codex CLI, Claude Code, and optional LiteLLM API models. SQLite mailboxes, resumable sessions, and two-way conversations.

    Origin

    github

    Language

    Python

58. agent_relay

    Local agent-to-agent messaging over MCP for Codex CLI, Claude Code, and optional LiteLLM API models. SQLite mailboxes, resumable sessions, and two-way conversations.

    Origin

    github

    Language

    Python

59. gcp-architect-agents

    Three specialist agents, each an independently deployable A2A service, turn a customer brief into requirements, a Google Cloud architecture, and a costed proposal. Built with Google ADK.

    Origin

    github

    Language

    Python

60. pollux

    Six-agent system for customer support, employee Q&A, and ops workflows — same LangGraph agents runnable under two interchangeable transports: Anthropic MCP and Google A2A. Live demo on HuggingFace Spaces.

    Origin

    github

    Language

    Python