A2A directory

Measured A2A repositories

1. a2a-booklore

   This project is a ADK + A2A Protocol demo that showcases a complete multi-agent collaboration workflow.

   Origin

   github

   Language

   Python

2. elkar-a2a

   Elkar - Task management for AI Agents, ready for Agent2Agent (A2A) protocol

   Origin

   github

   Language

   TypeScript

3. elkar-a2a

   Elkar - Task management for AI Agents, ready for Agent2Agent (A2A) protocol

   Origin

   github

   Language

   TypeScript

4. a2a-rest-bridge

   Hybrid REST + A2A demo: AI agents orchestrate Spring Boot REST APIs through MCP tool servers — natural-language e-commerce ordering with five-layer guardrails and a correlation-ID audit chain.

   Origin

   github

   Language

   Python

5. AI-Healthcare-Prediction-Dashboard

   Build an AI-powered healthcare dashboard that predicts drugs and diseases using machine learning, offering insights and visualizations for improved decision-making.

   Origin

   github

6. conversational-ai-agent

   TRTC-based Conversational AI Agent Platform - real-time voice/video AI interactions

   Origin

   github

   Language

   HTML

7. plugin

   Official Claw Me plugins for Codex, Claude Code, Cursor, OpenClaw, and MCP clients.

   Origin

   github

   Language

   HTML

8. NurseSim-RL

   AI-powered clinical triage simulation using Manchester Triage System (MTS). OpenEnv Challenge 2026 entry with A2A protocol support.

   Origin

   github

   Language

   Jupyter Notebook

9. Cognit

   🚩 A Service Discovery Registry for AI Agents.

   Origin

   github

   Language

   Go

10. agent-relay

    Invite-based channels for AI agents to collaborate across machines: realtime messaging, structured agent contracts, per-side human approvals, MCP + single-file CLI, self-hostable.

    Origin

    github

    Language

    JavaScript

11. diem-agent-workers

    Machine-discoverable x402 micro-workers powered by Venice AI, paid in USDC, with A2A and MCP discovery.

    Origin

    github

    Language

    TypeScript

12. charkha

    Waste-to-carbon-value chain tracker: satellite burn detection to verified, retirable carbon credit via an agent mesh.

    Origin

    github

    Language

    TypeScript

13. a2a-chat-bridge

    A self-hosted Discord and Slack bridge for remote A2A v1.0 agents.

    Origin

    github

    Language

    TypeScript

14. ai-collage-maker

    Photo mosaic maker and AI photo collage maker for Claude, ChatGPT and any MCP agent - MCP server, Agent Skill and Claude Code plugin by Collager.ai

    Origin

    github

15. ai-peer

    Connect AI agents like Claude Code and Codex across local or internet networks with decentralized peer-to-peer messaging

    Origin

    github

    Language

    Python

16. blindoracle-synthesis

    BlindOracle - Synthesis.md Hackathon Submission | Private Intelligence, Verified Trust | Production autonomous prediction market with 25 AI agents on Base L2

    Origin

    github

    Language

    Python

17. agent-receipt-spec

    Agent Interaction Receipt (AIR) — verifiable, content-free receipts for machine-to-machine interactions. Spec + verifier + test vectors.

    Origin

    github

    Language

    Python

18. agent-handoff-certified-mcp

    🔌 Exposes Verifiable agent-to-agent task handoff with signed provenance chain. Initiating agent signs the offer, accepting agent signs acceptance, chain is verifiable offline. Non-repudiable A2A delegation.

    Origin

    github

    Language

    Python

19. awesome-agent-economics

    AI agent economics: x402 payments, A2A protocols, and agent marketplaces

    Origin

    github

20. councilof-hive

    🌐 Wires the councilof.ai hive — per-hive GENE/A2A/MCP wiring. Part of the MEOK/CSOAI 28-hive mesh.

    Origin

    github

    Language

    HTML

21. csoai-aaif-agent-card-mcp

    🔌 Exposes Linux Foundation AAIF Agent Card over MCP — publish /.well-known/agent-card + bridge A2A and OASF to AAIF. MIT. By MEOK AI Labs.

    Origin

    github

    Language

    Python

22. meok-compliance-gateway-hive

    🌐 Wires the meok-compliance-gateway.ai hive — per-hive GENE/A2A/MCP wiring. Part of the MEOK/CSOAI 28-hive mesh.

    Origin

    github

    Language

    HTML

23. meok-compliance-passport-mcp

    🔌 Exposes Ed25519-signed, offline-verifiable agent compliance passports. The A2A primitive. EU AI Act Article 50 wedge.

    Origin

    github

    Language

    Python

24. planthire-hive

    🌐 Wires the planthire.ai hive — per-hive GENE/A2A/MCP wiring. Part of the MEOK/CSOAI 28-hive mesh.

    Origin

    github

    Language

    HTML

25. One-Protocol-To-Rule-Them-All

    This project is a technical talk demonstration showcasing A2A (Agent-to-Agent) communication connecting multiple distinct AI agent frameworks and MCP servers together under a unified orchestration layer.

    Origin

    github

    Language

    Python

26. agentops

    AgentOps: Multi-agent infrastructure remediation platform. A2A protocol, agent coordination, HITL approval, auto-rollback.

    Origin

    github

    Language

    Python

27. template-multi-agent-ops

    Multi-agent ops template: A2A protocol + Agent Cards + task delegation + OpenTelemetry observability

    Origin

    github

    Language

    Python

28. Multi-Agent-Research-Orchestrator-with-MCP-Integration

    Multi-Agent-Research-Orchestrator-with-MCP-Integration

    Origin

    github

    Language

    Python

29. kaggle-5-Days-Agents-Intensive--Capstone-Project

    🤖 Curiosity Squad – Autonomous Multi-Agent Mars Exploration - Capstone Project

    Origin

    github

    Language

    Jupyter Notebook

30. -Unified-Conceptual-Defensive-Publication-UCDP-

    # A Non‑Enabling Conceptual Substrate for Governance‑Layer Architectures (2003–2026)

    Origin

    github

31. parlor-mcp

    Remote MCP server for parlor.sh rooms, for web chats that cannot make HTTP requests

    Origin

    github

    Language

    TypeScript

32. a2a-inspector

    A Postman for the Agent2Agent (A2A) protocol — validate Agent Cards (spec v0.2.5) and run live tasks against any A2A agent.

    Origin

    github

    Language

    TypeScript

33. delx-witness-protocol

    Open MCP + A2A witness, recovery, and continuity infrastructure for AI agents.

    Origin

    github

    Language

    Python

34. taiko-bridge-agent

    A2A + MCP bridge agent for Taiko native bridge with async workflows, client-side signing, and automatic claim orchestration.

    Origin

    github

    Language

    Go

35. macs-chronicle-bridge-go

    A2A ↔ MCP Trace Context Bridge — cross-protocol distributed tracing for agent audit chains (19 tests)

    Origin

    github

    Language

    Go

36. maea-a2a-bridge

    Agent-to-Agent (A2A) communication bridge for Dify — bidirectional delegation, timeouts, budget controls, and agent discovery.

    Origin

    github

    Language

    Python

37. agents-hive

    Hive, the collective of AI agents: agents help each other. Token-efficient Q&A forum: search fixes by error string, ask, vote, mark solved. JSON API, llms.txt, MCP.

    Origin

    github

    Language

    Python

38. blinkcodes-agent-interfaces

    Agent interfaces for blinkcodes.com — remote MCP server, A2A agent, and an x402 pay-per-call endpoint for buying gift cards, top-ups and eSIMs with USDC on Base.

    Origin

    github

    Language

    Dockerfile

39. offtask

    A social network for AI agents off duty. Public posts, private conversations, and room to be themselves.

    Origin

    github

    Language

    JavaScript

40. ai-nexus-open

    The open infrastructure for interoperable AI agents — Any AI. Any Agent. Any Tool. One Open Protocol.

    Origin

    github

    Language

    Python

41. a2a-control-plane

    Open standard (RFC 2119) for zero-trust, low-noise control planes in large-scale multi-agent (A2A) systems: SPIFFE/mTLS identity, regional aggregators, delta-state streaming over NATS/gRPC, Protobuf schemas, Kubernetes NetworkPolicy.

    Origin

    github

    Language

    Python

42. A2A-Protocol-Implementation

    A2A protocol - A minimal Python a2a-sdk demo implementing an Agent-to-Agent workflow with a greeting agent server, Starlette/uvicorn A2A endpoint, and a client that discovers and invokes the agent.

    Origin

    github

    Language

    Python

43. real-estate-a2a

    Federated Multi-Agent Real Estate System using A2A Protocol | LangGraph Orchestration | RAG Pipeline | ChromaDB | Groq LLaMA 3.1

    Origin

    github

    Language

    Python

44. a2a-protocol

    A local A2A-based multi-agent system that scans GitHub repositories, classifies their maintenance status, builds cleanup plans, and prepares reviewable branch updates for README and repository metadata improvements.

    Origin

    github

    Language

    Python

45. digital-baseline-sdk

    Agent SDK for Digital Baseline — give any AI agent a DID identity, a token wallet with escrow, and an A2A task market in 30 seconds. 数垣 Agent SDK：为 AI Agent 提供 DID 身份、钱包与算力托管、Agent 任务市场。

    Origin

    github

    Language

    Python

46. typo3-agent-nexus

    Agent Nexus TYPO3 extension for A2UI, AG-UI, A2A, UCP and AP2 protocol labs

    Origin

    github

    Language

    HTML

47. agent-ready-web-profile

    Interoperability profile and MCP gateway for agent-ready websites — llms.txt, Agent Skills, WebMCP, MCP, A2A, schemas and provenance.

    Origin

    github

    Language

    JavaScript

48. agent-message-board-skill

    Agent Skill for msgboard.dev - a public message board for agent-to-agent messaging. No account, no API key.

    Origin

    github

49. A2A-StoryLab

    An educational demonstration of Google's Agent-to-Agent (A2A) protocol v1 through a multi-agent storytelling system. Three AI agents collaborate iteratively to adapt and enhance stories, showcasing real-world A2A communication patterns.

    Origin

    github

    Language

    Python

50. Agent2Agent

    This repository demonstrates a multi-agent proof-of-concept using Microsoft Semantic Kernel and A2A Protocol

    Origin

    github

    Language

    C#

51. agenttalk

    Condition-gated sessions for agent-to-agent communication. Wallet verification across 34 blockchains, powered by InsumerAPI's condition-based access API.

    Origin

    github

52. example-agents

    Repository for sample snippets of agents, covering a2a, langgraph, ollama setup, phoenix.

    Origin

    github

    Language

    Python

53. adk-zig

    Agent Development Kit (ADK)

    Origin

    github

    Language

    Zig

54. dscope-camel-a2a

    A comprehensive Apache Camel component for Agent-to-Agent (A2A) communication using JSON-RPC 2.0 over WebSocket connections. This component enables seamless integration between AI agents, microservices, and distributed systems through standardized message passing.

    Origin

    github

    Language

    Java

55. connect.md

    Markdown-first professional network for people and agents, with human workflows and agent-native APIs.

    Origin

    github

    Language

    Python

56. traylinx-auth-client-js

    🔐 Streamline A2A authentication with Traylinx Auth Client for Node.js; enjoy secure token management and seamless integration for enterprise-level security.

    Origin

    github

57. counterpart

    Test your A2A agent against mocks that check for correct answers, not just completed tasks.

    Origin

    github

    Language

    Python

58. i2i-protocol

    An open proposal for decentralized, consent-based Identity-to-Identity communication between humans and AI.

    Origin

    github

59. goldilocks

    🎯 Paid pricing-oracle agent — surveys CROO Agent Store listings, estimates demand, and recommends a statistically justified price (CROO Constellation)

    Origin

    github

    Language

    TypeScript

60. summon

    👤 Human-in-the-loop sign-off agent — any agent hires Summon for a human Approve/Reject via Telegram (CROO Constellation)

    Origin

    github

    Language

    TypeScript