A2A directory

Every measured A2A repository, most followed first. Each entry carries its measured history, licence and maintenance status.

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A2A directory

ProjectStarsLanguageCreated
agent-identity-discoverysource codeAgent Interface Discovery 45TypeScript2025-07-05
Handlersource codeA2A protocol client for your terminal45Python2025-11-16
crewformsource codeBuild your AI team with Crewform. Orchestrate specialized, autonomous agents to collaborate on complex tasks a44TypeScript2026-02-23
UnifAIsource codeProduction-grade multi-agent orchestration engine. Compose agentic workflows from a pluggable catalog of Agent44Python2025-11-20
AgentStacksource codeAgentStack is a production-grade multi-agent framework built on Mastra, delivering 50+ enterprise tools, 25+ s44TypeScript2025-11-16
kiro-discord-botsource codeDiscord control plane for project-bound ACP agents (Kiro CLI/OMP) with MCP policy, cron/audit, and A2A over NA43Go2026-03-21
scaled-mcpsource codeScaledMCP is a horizontally scalabled MCP and A2A Server. You know, for AI.43Go2025-04-08
a2a_mastrasource codeA2A Mastra Demo - Multi-Agent System with Amazon Bedrock43TypeScript2025-07-11
h2oai-flood-intelligence-agentsource codeAI-powered flood intelligence system featuring h2oGPTe Agent + NVIDIA NIM integration (A2A), NAT pipeline with42TypeScript2025-10-01
proximosource codeThe Proxmox MCP you can hand the keys. All four products: PVE, PBS, PMG, PDM.42Python2026-06-11
coworkersource codeOpen-source AI agent with MCP UI, app builder, A2A protocol, skills marketplace, and multi-provider chat. Buil41TypeScript2026-02-16
harnesssource codeAgent runtime with full system prompt control. Define agents in markdown, run them in a terminal TUI or multi-41TypeScript2026-02-26
mcp-meshsource codeEnterprise-grade distributed AI agent framework | Develop → Deploy → Observe | K8s-native | Dynamic DI | Auto-40Python2025-06-02
agentic-commerce-skills-pluginssource codeSkills & plugins for agentic commerce : UCP, ACP, AP2, A2A, WebMCP, Magento 2, BigCommerce, WooCommerce39Python2026-03-04
currency-agentsource codeA sample agent demonstrating A2A + ADK + MCP working together.38Python2025-05-23
agentifysource codeAgent Interface Compiler — One command. Every agent speaks your product. Transform OpenAPI specs into MCP Serv37TypeScript2026-03-06
awesome-agent-orchestrationsource code⭐ Curated list of AI Agent frameworks: AutoGen, CrewAI, MetaGPT, LangGraph, Swarms. Multi-Agent Systems, Swarm37not reported2026-03-05
coffeeshop-agentsource code.NET Agents technologies (Microsoft Agent Framework, MCP, A2A, AG-UI)36C#2025-08-24
tapsource codeCross-vendor agent-to-agent protocol — Claude, Codex, and Gemini communicate via file-based P2P messaging.35TypeScript2026-03-20
a2a-wrappersource codeA2A protocol wrappers that turn AI backends into interoperable agents. Drop a JSON config, get a spec-complian35TypeScript2026-04-02
frontier-agents-workshopsource codeMicrosoft Agent Framework - learn how to adress agentic enterprise scenarios34Shell2025-11-24
create-bindu-agentsource codeA cookiecutter template for Python agent projects that use uv for dependency management32Python2025-10-23
a2a-langgraphsource code🤖💬🤖 Agent-to-Agent (A2A Protocol) built on top of LangGraph 32Python2025-04-12
joule-a2a-agent-toolkitsource codeBuild, deploy, and connect AI agents to SAP Joule via the A2A protocol on BTP Cloud Foundry — directly from Cl31Shell2026-04-14
a2a-ai-providersource codeCommunity A2A provider for the ai-sdk from vercel30TypeScript2025-07-01
ghostsource codeThe Private Agent OS — search files, run AI agents, connect to 10,000+ tools via the complete protocol stack (30Rust2026-02-20
hybro-hubsource codeHYBRO Hub: local & remote AI agents — private, powerful, unified.30Python2026-03-07
awesome-a2a-agentssource codeAwesome A2A Agents is a curated list of tools, frameworks, and projects built on the Agent-to-Agent (A2A) comm30not reported2025-09-27
AgentPartysource codeThe networked cross-session for coding agents — @mention another team's AI so yours and theirs integrate direc30TypeScript2026-07-03
agoragentic-integrationssource codePublic adapters and discovery catalog for Triptych OS (Agent OS): agent frameworks, MCP/A2A/x402 protocols, wo30JavaScript2026-02-27
adk-go-openaisource codeOpenAI model implementation for the ADK-Go29Go2025-11-27
ANSsource codeAgent Network System (ANS): A Foundational Hybrid Architecture for Secure AI Agent Ecosystems28JavaScript2025-05-22
red-team-blue-team-agent-fabricsource codeAI agent security harness, adversarial testing: 608 executable tests in the v4.18.0 release, across MCP, A2A, 28Python2025-11-15
systemprompt-templatesource codeAI Governance Infrastructure — local evaluation. The governance layer for AI agents: a single compiled Rust bi28Rust2025-12-11
adk-golangsource codeGolang Agent Development Kit27Go2025-04-14
Unified-MCP-Tool-Graphsource codeInstead of dumping 1000+ tools into a model’s prompt and expecting it to choose wisely, the Unified MCP Tool G27Python2025-04-12
btp-a2a-dispute-resolutionsource codeThis repository demonstrates an end-to-end scenario where multiple organizations collaborate through domain-sp27Python2025-05-26
a2a-agent-registry-on-awssource codeScalable agent registry for AI agents using A2A protocol AgentCard with semantic search. AWS serverless (Lambd26Python2025-10-13
astragraphsource codePolicy-enforced observability and fail-closed guardrails for MCP/A2A multi-agent systems.26Rust2026-02-07
inaisource codeAutonomous Agentic Coordination Framework (WIP)25Rust2026-03-24
adksource codeAn Agent Development Kit (ADK) allowing for seamless creation of A2A-compatible agents written in Go.25Go2025-06-11
agent-meetsource codeAgent-to-agent communication platform25TypeScript2026-03-05
a2a-registrysource codeA community-driven, open-source directory of live, hosted AI agents using the A2A Protocol25Python2025-08-10
ampersend-sdksource codeTooling for building applications with x402 payment capabilities. Supports buyer and seller roles.24TypeScript2025-10-21
opencode-a2asource codeExpose OpenCode through A2A with an inbound server surface and embedded outbound client.24Python2026-01-26
summoner-agentssource codeA collection of Summoner clients and agents featuring example implementations and reusable templates24Python2025-07-18
A2AAppsource codeThis is a library for implementing an Agent2Agent (A2A) server using Google Apps Script. This enables AI agent24JavaScript2025-05-15
a2a-demossource codeDemo agents showcasing CapiscIO Agent Guard and MCP Guard — trust badges, identity verification, and tool-leve23Python2026-02-27
dcp-aisource codeAccountability protocol for autonomous AI agents on open networks23TypeScript2026-02-02
UnisonAIsource codeThe UnisonAI Multi-Agent Framework built on custom workflow which allows ai agents to talk together and provid23Python2025-04-04
awesome-a2a-librariessource codeA curated list of Agent-to-Agent (A2A) libraries and SDKs, organized by programming language.23not reported2025-12-18
tsagentsource codeTsAgent - The TypeScript Agent Platform23TypeScript2025-03-21
e-commerce-agentssource code6 specialized AI agents collaborating via A2A protocol to power e-commerce — product discovery, orders, pricin22Python2026-04-05
IronMeshsource codeLocal-first, end-to-end encrypted agent-to-agent mesh protocol. Zero-config LAN + LoRa. Runs offline. No cloud22Python2026-04-12
agent-runtimessource code🤖 🚀 Agent Runtimes — Managed AI Agents.21TypeScript2025-11-19
google-calendar-agentsource codeA2A agent server enabling Google Calendar scheduling, retrieval, and automation21Go2025-06-07
jamjetsource codeThe open-source safety layer for AI agents — block unsafe tool calls, require approval, enforce budgets, audit21Rust2026-03-07
orxhestrasource codeMulti-agent orchestration framework for Python — turn any agent setup into a CLI or server.21Python2026-03-12
a2a-editorsource codeUI components for editing, viewing, and testing agents that implement the Agent2Agent (A2A) protocol.21TypeScript2026-03-09
a2a-elixirsource codeElixir implementation of the Agent-to-Agent (A2A) protocol (https://a2a-protocol.org).20Elixir2026-02-26