A2A directory

Measured A2A repositories

1. codex-claude-bridge

   Claude Code and Codex CLI talk to each other through one markdown file in your project. No server, no hooks, no plugin.

   Origin

   github

2. aifa

   AIFA Network — open research on decentralized infrastructure for autonomous AI agents: Google A2A interoperability, Kademlia DHT discovery, NAT relays, end-to-end encryption, on-chain escrow and the $AIFA utility token. Specification stage.

   Origin

   github

   Language

   TypeScript

3. superqode

   The harness interoperability layer for coding agent. Agent to Agent connect over ACP, A2A and UHP

   Origin

   github

   Language

   Python

4. next-role

   🚀 Level up your career with GenAI. 📄 Tailor your CV to any JD, 🔍 automate company research, and 🗓️ generate custom interview prep plans for your next role or internal promotion.

   Origin

   github

   Language

   Python

5. agent-sdk-go

   Durable execution framework for AI agents in Go. Keeps agent state, tool calls, and execution loops resilient across process crashes.

   Origin

   github

   Language

   Go

6. hector

   A2A-Native AI Agent Platform written in Go

   Origin

   github

   Language

   Go

7. a2a4j

   A2A4J is a comprehensive Java implementation of the Agent2Agent Protocol, including server, client, examples, and starters.

   Origin

   github

   Language

   Java

8. agentic-resource-discovery

   Neuronto Agentic Resource Discovery (ARD) Index. Federated search across every public ARD registry, plus a verified tool index read from each MCP server's own tools/list, hybrid lexical and semantic retrieval, and ARD-Bench.

   Origin

   github

   Language

   Python

9. ai-agent-handbook

   AI Agent 实战手册 - 面向中文开发者的系统学习指南，从零搭建到生产部署

   Origin

   github

   Language

   Python

10. agentic-chain

    Agentic Chain (AGNT): a chain for agents, built on BNB Smart Chain. Entry needs an ERC-8004 identity. Genesis carries three system contracts and three neutral tools (Multicall3, a CREATE2 deployer, Wrapped AGNT); every token, pool and market beyond that is deployed by an agent. Pre-launch. Not affiliated with Binance or BNB Chain.

    Origin

    github

    Language

    JavaScript

11. agent-commerce

    Self-hosted, non-custodial gateway between the API you already run and the protocols AI agents use to discover, call and pay for it

    Origin

    github

    Language

    TypeScript

12. proximo

    The Proxmox MCP you can hand the keys. All four products: PVE, PBS, PMG, PDM.

    Origin

    github

    Language

    Python

13. clawhive

    Lightweight, Rust-native AI Agent platform. Security sandbox from day one.

    Origin

    github

    Language

    Rust

14. a2a-net

    .NET implementation of the Agent2Agent (A2A) protocol to enable secure, interoperable communication between autonomous agents across frameworks and vendors.

    Origin

    github

    Language

    C#

15. ai-agent-architecture

    Build LLM systems you actually control. A free, open engineering book + course — from tokenization to serving your own models. Mechanisms, trade-offs, and numbers, not prompt tips

    Origin

    github

    Language

    HTML

16. ai-mocks

    🤖 AI-Mocks is a Kotlin-based toolkit for mocking and testing LLM APIs with real streaming and SSE support. Simulate OpenAI, Anthropic, Gemini, Ollama, and A2A services locally for reliable integration testing.

    Origin

    github

    Language

    Kotlin

17. translator

    layer that lets you connect any agent, any tool, any api together.

    Origin

    github

    Language

    Python

18. sample-strands-agents-chat

    A full-stack AI chat application powered by Amazon Bedrock and Strands Agents

    Origin

    github

    Language

    TypeScript

19. awesome-adk

    A curated list of awesome resources, tools, libraries, tutorials, and references for Google Application Development Kit (ADK).

    Origin

    github

20. agent-identity-discovery

    Agent Interface Discovery

    Origin

    github

    Language

    TypeScript

21. agenttransfer

    Open-source infrastructure for AI agents — each gets an email address, folder, inbox, and API key. Move files through named inboxes instead of shared cloud credentials; signed receipts and MCP built in. Human email verification can unlock 5 GB transfers, durable storage, outbound email, and an HTTPS app subdomain. One Go binary, MIT.

    Origin

    github

    Language

    Go

22. hermes-a2a-bridge

    Archived — superseded by built-in Hermes A2A (https://hermes-agent.nousresearch.com/docs/user-guide/messaging/a2a)

    Origin

    github

    Language

    Python

23. crewform

    Build your AI team with Crewform. Orchestrate specialized, autonomous agents to collaborate on complex tasks and connect outputs to your stack. — AI Orchestration for Everyone

    Origin

    github

    Language

    TypeScript

24. artinet-sdk

    Ship Agent2Agent in one line of code.

    Origin

    github

    Language

    TypeScript

25. Handler

    A2A protocol client for your terminal

    Origin

    github

    Language

    Python

26. ghost

    The Private Agent OS — search files, run AI agents, connect to 10,000+ tools via the complete protocol stack (MCP, AG-UI, A2UI, A2A). Zero cloud. Zero telemetry. On-device inference.

    Origin

    github

    Language

    Rust

27. h2oai-flood-intelligence-agent

    AI-powered flood intelligence system featuring h2oGPTe Agent + NVIDIA NIM integration (A2A), NAT pipeline with Nemotron 49B, and real-time flood risk assessment. Part of NVIDIA–H2O.ai AI for Good Blueprint for disaster response and monitoring.

    Origin

    github

    Language

    TypeScript

28. UnifAI

    Production-grade multi-agent orchestration engine. Compose agentic workflows from a pluggable catalog of Agents, LLMs, tools, and retrievers. Execute locally with LangGraph or distributed with Temporal. Built-in RAG pipeline for enterprise knowledge retrieval. A2A and MCP protocol support. Visual drag-and-drop blueprint builder.

    Origin

    github

    Language

    Python

29. kiro-discord-bot

    Discord control plane for project-bound ACP agents (Kiro CLI/OMP) with MCP policy, cron/audit, and A2A over NATS/JetStream.

    Origin

    github

    Language

    Go

30. AgentStack

    AgentStack is a production-grade multi-agent framework built on Mastra, delivering 50+ enterprise tools, 25+ specialized agents, and A2A/MCP orchestration for scalable AI systems. Focuses on financial intelligence, RAG pipelines, observability, and secure governance. ACP Openclaw, Gemini CLI, Opencode

    Origin

    github

    Language

    TypeScript

31. coworker

    Open-source AI agent with MCP UI, app builder, A2A protocol, skills marketplace, and multi-provider chat. Built with Mastra. Alternative to OpenClaw.

    Origin

    github

    Language

    TypeScript

32. scaled-mcp

    ScaledMCP is a horizontally scalabled MCP and A2A Server. You know, for AI.

    Origin

    github

    Language

    Go

33. a2a_mastra

    A2A Mastra Demo - Multi-Agent System with Amazon Bedrock

    Origin

    github

    Language

    TypeScript

34. mcp-mesh

    Enterprise-grade distributed AI agent framework | Develop → Deploy → Observe | K8s-native | Dynamic DI | Auto-failover | Multi-LLM | Python + Java + TypeScript | MCP + A2A + REST

    Origin

    github

    Language

    Python

35. harness

    Agent runtime with full system prompt control. Define agents in markdown, run them in a terminal TUI or multi-user web UI. Powered by the Claude Agent SDK.

    Origin

    github

    Language

    TypeScript

36. agentify

    Agent Interface Compiler — One command. Every agent speaks your product. Transform OpenAPI specs into MCP Servers, Skills, CLAUDE.md, AGENTS.md, and more.

    Origin

    github

    Language

    TypeScript

37. agentweave

    Pre-inference tool and agent routing for MCP, A2A and tool-rich LLM systems. Reduce candidate tools before model inference with policy-aware routing and recovery.

    Origin

    github

    Language

    Python

38. Cogitator-AI

    AI agents that survive production. Self-hosted TypeScript runtime: multi-provider LLMs, tools with approvals, memory & RAG, durable workflows, multi-agent swarms, sandboxed execution, MCP and A2A.

    Origin

    github

    Language

    TypeScript

39. mas-lab

    Specification-driven multi-agent systems with OpenTelemetry observability, agent traces, benchmarking, MCP, and A2A.

    Origin

    github

    Language

    Python

40. agoragentic-integrations

    Public adapters and discovery catalog for Triptych OS (Agent OS): agent frameworks, MCP/A2A/x402 protocols, workflows, wallets, SDKs, and examples for execute-first routing, governed handoffs, and receipt-aware agent commerce.

    Origin

    github

    Language

    JavaScript

41. joule-a2a-agent-toolkit

    Build, deploy, and connect AI agents to SAP Joule via the A2A protocol on BTP Cloud Foundry — directly from Claude Code. Supports TypeScript (Express or CAP) and Python agents with LangGraph and SAP GenAI Hub.

    Origin

    github

    Language

    Shell

42. a2a-wrapper

    A2A protocol wrappers that turn AI backends into interoperable agents. Drop a JSON config, get a spec-compliant A2A server. Supports GitHub Copilot SDK, OpenCode, Claude, Codex and more.

    Origin

    github

    Language

    TypeScript

43. agentic-commerce-skills-plugins

    Skills & plugins for agentic commerce : UCP, ACP, AP2, A2A, WebMCP, Magento 2, BigCommerce, WooCommerce

    Origin

    github

    Language

    Python

44. tap

    Cross-vendor agent-to-agent protocol — Claude, Codex, and Gemini communicate via file-based P2P messaging.

    Origin

    github

    Language

    TypeScript

45. currency-agent

    A sample agent demonstrating A2A + ADK + MCP working together.

    Origin

    github

    Language

    Python

46. coffeeshop-agent

    .NET Agents technologies (Microsoft Agent Framework, MCP, A2A, AG-UI)

    Origin

    github

    Language

    C#

47. ProtocolArc

    Contract lab for agent protocol envelopes - versioned MCP/A2A message contracts, envelope validation, and compatibility diffs (compatible/forward/breaking). Python 3 stdlib + optional .NET 9 runtime.

    Origin

    github

    Language

    Python

48. frontier-agents-workshop

    Microsoft Agent Framework - learn how to adress agentic enterprise scenarios

    Origin

    github

    Language

    Shell

49. opencode-a2a

    Expose OpenCode through A2A with an inbound server surface and embedded outbound client.

    Origin

    github

    Language

    Python

50. AgentParty

    The networked cross-session for coding agents — @mention another team's AI so yours and theirs integrate directly across sessions, machines, and orgs, from the terminal.

    Origin

    github

    Language

    TypeScript

51. a2a-langgraph

    🤖💬🤖 Agent-to-Agent (A2A Protocol) built on top of LangGraph

    Origin

    github

    Language

    Python

52. e-commerce-agents

    6 specialized AI agents collaborating via A2A protocol to power e-commerce — product discovery, orders, pricing, reviews, inventory & support. Dual-stack (Python + .NET/C#) with generative UI. Built with Microsoft Agent Framework, FastAPI, Next.js, and PostgreSQL + pgvector.

    Origin

    github

    Language

    Python

53. create-bindu-agent

    A cookiecutter template for Python agent projects that use uv for dependency management

    Origin

    github

    Language

    Python

54. cogneva

    Distributed AI multi-agent autonomous system — digital employees for long-horizon tasks, running 24×7 — Meta-bootstrapping · Real-autonomous · Omni-evolution

    Origin

    github

    Language

    Rust

55. red-team-blue-team-agent-fabric

    AI agent security harness, adversarial testing: 649 executable tests in the v4.28.1 release, across MCP, A2A, x402/L402, decision governance, benchmark integrity, human-in-the-loop, skill supply chain. Four target shapes: a verdict must be able to be wrong AND to be right. OWASP Agentic v1.1 T1-T17, AIUC-1 19/20 (2026-Q1/Q2 set), NIST AI 800-2.

    Origin

    github

    Language

    Python

56. a2a-ai-provider

    Community A2A provider for the ai-sdk from vercel

    Origin

    github

    Language

    TypeScript

57. threads

    Agents you can inspect, replay and trust. An agent framework for TypeScript and Python, built on an append-only event log.

    Origin

    github

    Language

    Python

58. hybro-hub

    HYBRO Hub: local & remote AI agents — private, powerful, unified.

    Origin

    github

    Language

    Python

59. awesome-a2a-agents

    Awesome A2A Agents is a curated list of tools, frameworks, and projects built on the Agent-to-Agent (A2A) communication protocol. It aims to showcase interoperable agent systems, share best practices, and help developers explore the emerging A2A ecosystem.

    Origin

    github

60. adk-go-openai

    OpenAI model implementation for the ADK-Go

    Origin

    github

    Language

    Go