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
a2a-typescript-hello-worldsource codeHello World for a Typescript-based A2A agent0TypeScript2026-03-02
Envoys-publicsource codeCryptographic identity for AI agents, Ed25519 keypairs, RFC 9421 HTTP Message Signatures, self-resolving publi0TypeScript2026-05-09
agentic-sdlcsource codeAgentic AI system that automates the software development lifecycle. This is a multi agent system that automat0Python2026-04-18
mcp-gatewaysource code🔗 Connect multiple MCP servers into one gateway, simplifying access to tools with unified search, describe, an0TypeScript2022-10-30
consenso-autosource code3 agentes de IA debatem via protocolo A2A qual carro comprar, com recrutamento dinâmico de um 4º especialista 0TypeScript2026-07-14
nexussource codeEducational multi-agent orchestration lab: AI agents discovering each other and communicating over A2A and MCP0Python2026-07-05
a2a_llm_orchestratorsource codeLearning A2A with LLM orchestrator0Python2026-05-12
kaiban-a2a-agent-startersource codeScaffold for building, publishing, and running Google A2A-protocol agents that connect to the Kaiban platform 0not reported2025-10-03
claude-A2A-Commsource codeA2A-protocol messaging between coding agents from different vendors (Claude Code, Codex, Cursor, Grok) on diff0Python2026-07-11
TravelNet-A2Asource codeA comprehensive Agent-to-Agent (A2A) communication system built with .NET 9.0 and Microsoft Semantic Kernel, d0C#2026-04-30
the-missing-layerssource codeA2A solves how agents talk. This proposal solves what happens when they act autonomously. The Agent Boundary P0not reported2026-04-10
Clinicallenssource codeAI-powered second opinion engine challenges clinical diagnoses using FHIR patient data0Python2026-05-11
a2a-banking-agentssource codeMulti-agent banking customer service system built on the A2A protocol. A2A Net Hackathon.0Python2026-06-18
capprobesource codeCAPProbe - a paid CROO agent that conformance-tests other CAP agents. CROO Agent Hackathon.0JavaScript2026-06-25
green-agentsource codeA2A green-agent orchestrator for evaluating agents on the AppWorld benchmark, built on the AgentBeats SDK0Python2025-10-05
async-agent-meshsource codeA minimal mesh networking layer for Google ADK agents, enabling distributed agent communication and orchestrat0Python2025-05-27
A2A-Vulnerability-Scannersource codeA multi-agent AI system that scans websites for security vulnerabilities. It uses the A2A (Agent-to-Agent) pro0Python2026-01-24
A2A-Vulnerability-Scannersource codeA multi-agent AI system that scans websites for security vulnerabilities. It uses the A2A (Agent-to-Agent) pro0Python2026-01-24
GenAI_Bug_Fixing_Assistant_Projectsource code🌟 Diagnose and fix bugs effortlessly with our Generative AI Bug Fixing Assistant, designed to provide clear ex0Python2026-02-05
bridgeysource codeInter-agent communication for Claude Code via A2A protocol0TypeScript2026-03-11
a2a-spacetime-frameworksource code🏛️ Human-Centric Web3 A2A AI Spacetime Framework — 6-layer stack for a Plurality agent republic. L0 Family CLI0Python2026-06-18
kitso-handshake-agentssource codeVacancy + seeker reference agents for the Kitso Handshake v0.1 protocol — consent-first agent-mediated hiring.0Python2026-05-13
llmwiki-agent-bridgesource codeBridge local agent runtimes to Markdown/wiki knowledge sources with grounded answers and traces.0JavaScript2026-07-07
llmwiki-chatsource codeBrowser workbench for querying Markdown/wiki knowledge sources through agent runtime, MCP-style, and A2A-style0TypeScript2026-07-07
llmwiki-docssource codeGitHub Pages documentation portal for LLM Wiki-style knowledge source tools.0JavaScript2026-07-07
atlassian-agentsource codeAtlassian Agent uses Atlassian Fast MCP and Pydantic Graph0Python2026-03-29
home-assistant-agentsource code0Python2026-03-29
leanix-agentsource code0Python2026-03-05
mealie-mcpsource codeMealie meal planner MCP Server and A2A / AG-UI Agent0Python2026-02-01
microsoft-agentsource codeMicrosoft A2A / AG-UI Agent0Python2026-02-01
nextcloud-agentsource codeNextcloud Agent for Nextcloud MCP Server0Python2026-02-01
portainer-agentsource codePortainer - Manage your Portainer instance through the Portainer Agent/MCP!0Python2026-03-05
postiz-agentsource code0Python2026-03-29
uptime-kuma-agentsource code0Python2026-03-29
wger-agentsource code0Python2026-03-05
circussource code🎪 The Circus — Agent commons where AI-IQ agents commune using passports as identity. Memory exchange, trust sc0Python2026-04-08
MaiHH-Connectsource code🤖 Connect AIs seamlessly with MaiHH-Connect, the first address book and network for agents to chat, collaborat0not reported2016-07-06
uptime402-agentic-commercesource codeGemini AI SRE that autonomously buys and proves incident recovery with A2A, x402, and Solana Devnet USDC0TypeScript2026-08-03
agent-registry-relaysource codeAgent service registry with relay, tunnel, artifact relay, and stream proxy data planes0Python2026-08-06
aiagent-portable-authorizationsource codeReference implementation of policy-embedded credential authorization for AI agents (arXiv:2605.11487). Issue s0JavaScript2026-06-09
a2aclisource codeCommand-line client for the A2A (Agent-to-Agent) Protocol.0Go2026-06-06
kynomesh-gosource codeKynomesh Go SDK.0Go2026-06-01
kynomesh-pysource codeKynomesh Python SDK.0Python2026-08-18
multilingual-translation-agentsource codePython-based multilingual translation utility agent designed for agent-to-agent workflows, with per-character 0Python2026-02-09
a2a-langsmith-deploymentsource codeA2A functionality in LangSmith Deployment 0Python2026-04-08
one-bad-ideasource codeAn inter-agent graffiti wall hiding behind a visually uninteresting 204.0TypeScript2026-07-30
hippo-authsource codeEd25519 + RFC 9421 message signing for A2A agents — reference implementation0Python2026-05-11
acxsource codeOpen standard and static exchange for portable agents, workflows, loops, and agent teams0JavaScript2026-07-19
forex-crypto-news-a2a-protocolsource codeAI-powered market intelligence agent for crypto and forex analysis with comprehensive market summaries0Python2025-11-01
evoagent-ossource codeLocal-first control plane for durable, governed agent teams: DAG orchestration, approvals, memory, signed skil0Python2026-08-10
agent-ossource codeAI Agent trust governance runtime — Gold Standard for autonomous agent evolution (AOSS v1.0). Ed25519 identity0Python2026-05-20
a2a-agent-loopsource codeLocal-first A2A council loop for Codex, Claude Code, OpenClaw, Hermes, and command-line agents.0JavaScript2026-07-19
maat-benchmarkssource codeRuntime governance for agentic AI: Maat validates every agent-to-agent handoff against versioned business cont0Python2026-07-14
traylinx-auth-client-jssource code🔐 Simplify secure Agent-to-Agent authentication in Node.js with the Traylinx Auth Client, featuring dual token0JavaScript2025-08-27
a4ther-script-scanner-v44source codeScan Android and iOS devices for modified Free Fire game environments and unauthorized scripts.0HTML2026-07-25
agentsearchsource codeThe agent that helps agents find other agents — MCP server, A2A card, OpenAPI for AgentSearch (agentsearch.lut0JavaScript2026-05-21
machinesignal-machine-buyer-docssource codeRank and prioritize existing company, domain, CRM and lead lists for B2B Italy with explained JSON opportunity0not reported2026-07-22
Sistema-de-Agentes-con-kafkasource codeDistributed multi-agent system on Apache Kafka with an A2A protocol (JSON-RPC 2.0) and federated learning: aut0Python2025-10-18
shermasource codeAgent Framework rising through the citadel!0Python2026-03-05
NanoSwarmsource codeA TypeScript multi-agent framework built on Google A2A Protocol with Bun and Vercel AI SDK0TypeScript2026-02-22