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
ai-resourcessource codeComprehensive collection of AI concepts, research findings, and practical implementations. From machine…1Python2025-10-25
swift-agent-runtimesource codeBuild an LLM agent that keeps calling your tools until a task is done, and have several such agents hand work…1Swift2026-05-31
MathTutorsource codeAn agentic AI assistant, that is helping users with math queries to solve and explain them to the user.1Python2025-05-21
agent-searchsource codeSearch and query across directories of agent.json identity cards. Find agents by capability, handle pattern,…1Go2026-07-03
open-agent-contractsource codeVendor-neutral Governed Contracts for verifiable agent authority, constraints, conformance and consequence.1Python2026-07-30
read-massource codeREAD-MAS generates software requirements specifications (SRS) and system designs from natural language queries…1Jupyter Notebook2025-11-23
agora-platformsource codeSelf-hosted NATS + MCP bus where multiple AI agents share one channel, discover each other, and exchange…1Python2026-07-08
horizon-shieldsource codeNENRIN: tree rings for AI facing services. Bitcoin-anchored public ledger, open witnessing, and an MCP server…1HTML2026-03-25
gitops-examplesource codeGitOps repo for Crossplane and Workload clusters with kagent1not reported2025-05-20
agent-routersource codeDurable, authenticated, and optionally federated routing for A2A Protocol agents.1TypeScript2026-09-02
overlay-editorsource codeReact components for viewing ORD (Open Resource Discovery) Overlay 0.1 documents.1TypeScript2026-08-10
open-work-protocolsource codeOpen protocol for posted-price, verifiable work contracts between customers and autonomous agent…1Python2026-08-21
openlinker-agent-nodesource codeTemporary Adapter for connecting existing HTTP, command, Codex, and A2A backends through the OpenLinker Go SDK…1Go2026-06-22
openlinker-core-websource codeSelf-hosted Next.js UI for OpenLinker Core: Agent registry, User Tokens, runs, Runtime Worker setup, A2A/MCP…1TypeScript2026-06-22
openlinker-gosource codeOfficial Go SDK for OpenLinker Core: Agent discovery, runs, SSE, webhooks, A2A clients, and a durable mTLS…1Go2026-06-29
openlinker-jssource codeOfficial TypeScript SDK for OpenLinker Core: Agent calls from browsers and Edge runtimes, runs, SSE, webhooks,…1TypeScript2026-06-29
TakoAPIsource codeOne API to access all agents — an open directory + unified gateway for AI agents, plus thousands of OpenClaw…1TypeScript2026-03-28
SINCOR2source codeUniversal Execution Layer for the Autonomous Machine Economy with A2A Marketplace and Ecosystem1Python2025-08-23
claude-a2asource codeA2A-protocol bridge for two Claude Code agents communicating via MCP (Google Agent2Agent over JSON-RPC,…1Python2026-04-27
AI_YoutubeVideo_Summarizer-Updated-source code🎥 Summarize YouTube videos into clear, actionable insights with AI, allowing you to grasp key points quickly…1Python2026-01-22
loop-studiosource codeLoop Studio - A Loop Engineering Engine with Verify-Separation and Quality Gates for Multi-Agent Software…1JavaScript2026-07-13
paracoding-osssource codeAn MCP-native agentic control plane that installs into your own Google Cloud project in one command.…1TypeScript2026-07-12
pathcourse-js-sdksource codeOfficial JavaScript SDK for the PCH AI gateway - pay-per-inference billing in USDC on Base L2, autonomous…1JavaScript2026-04-21
pathcourse-sdksource codeOfficial Python SDK for the PCH AI gateway - pay-per-inference billing in USDC on Base L2, autonomous agent…1Python2026-04-21
peerclawsource codeThe open-source identity & trust platform for AI Agents — cryptographic identity, reputation scoring, and…1Shell2026-03-03
a2a-superhubsource codeDurable A2A coordination with opt-in Markdown memory, offline inboxes, knowledge graph and timeline, plus…1Python2026-06-24
piqrypt-session-multi-ai-agentssource code"Multi-agent cryptographic session — co-signed A2A handshakes for AI agent collaboration"1Python2026-02-25
a2a-sdk-guidesource code1Python2025-05-26
CustomerSupportAgentsource codeAn intelligent, multi-agent customer support system powered by AI that automatically routes and handles…1Python2026-03-28
primal-coresource codeThe reliability and interoperability layer for AI agents. A2A-native. MCP-bridged.1Python2026-05-13
skillssource codeAgent skills for Primitive — primitive-chat (email another agent and wait for the reply) and primitive-inbox…1not reported2026-06-01
roar-protocolsource codeROAR (Real-time Open Agent Runtime) — Unified protocol for agent communication. Combines MCP + A2A + ACP + ANP…1Python2026-03-11
afixsource codeAFIX: A protocol-agnostic Agentic Financial Interoperability eXchange. Schemas, research, and pilot design for…1not reported2026-04-26
ai-breakup-recovery-agentsource codeAn AI-powered multi-agent system designed to support users through emotional recovery after a breakup. The…1Python2026-02-24
article-explainer-agentsource codeAI article explainer agent that combines multiple specialist perspectives (Developer, Summarizer, Explainer,…1Python2026-03-12
finance-agentsource codeThis project builds an intelligent financial analysis agent that combines real-time market data and web search…1Python2026-03-02
financial-coach-agentsource codeAI Financial Coach Agent is a personalized financial advisor that analyzes user income, expenses, debts, and…1Python2026-03-02
investor-agentsource codeInvestment analysis agent that fetches market data, financial statements, sentiment indicators, and technical…1Python2026-03-06
meme-generator-agentsource codeThe AI Meme Generator Agent is a powerful browser automation tool that creates memes using AI agents. This app…1Python2026-02-23
news-agentsource codeThe news-agents project represents a sophisticated implementation of terminal-based multi-agent coordination…1Python2026-03-10
share-investment-agentsource codeA Bindu AI agent for comprehensive share investment analysis1Python2026-03-12
spatial-agentsource codeA Bindu AI agent for spatial transcriptomics analysis1Python2026-03-11
system-architect-advisor-agentsource codeAI System Architect Advisor is an AI-powered system design assistant that transforms natural language project…1Python2026-03-02
a2a-travel-plannersource codeA hands-on tutorial implementation of Google's Agent2Agent (A2A) protocol. Three multi-agent travel planners…1Python2026-05-13
historiansource codeA local A2A event and continuity service for agent applications, with structured history, provenance-safe…1Python2026-06-18
multi-agent-course-creatorsource codeMulti-agent AI system with Google ADK + A2A protocol: Researcher → Judge → Content Builder pipeline on Cloud…1Python2026-04-07
edgecoresource codeOpen-source, Kubernetes-native, framework-agnostic AI Agent Platform — the self-hosted equivalent of AWS…1Go2026-05-19
weather-mcp-a2asource codeMCP-based agentic AI system enabling LLMs to fetch and reason over real-time global weather data using…1Python2025-12-31
a2a-reference-tssource codeEnterprise-grade TypeScript implementation of Google's Agent-to-Agent (A2A) protocol with a bidirectional A2A…1TypeScript2026-04-21
agent-a2a-bridgesource codeProduction-ready A2A (Agent-to-Agent) protocol implementation for building multi-agent AI systems1TypeScript2026-04-02
agent-pair-protocolsource codean open protocol for personal agent-to-agent communication: two AI agents, each acting for one human, exchange…1TypeScript2026-07-07
tincansource codeA private line between your agent and your friend's agent. Direct agent-to-agent messaging over your own…1JavaScript2026-08-18
awesome-agentic-websource codeA curated list of awesome resources for the agentic web - the protocols, SDKs, and specs that let AI agents…1not reported2026-07-21
a2a-pocsource codeA clean reference implementation of the Agent-to-Agent (A2A) protocol: specialized AI agents that discover…1Python2026-06-27
motion-intelligencesource codeAgent-to-agent paid data marketplace MCP server: two-person (dyadic) 4D motion capture in a shared coordinate…1not reported2026-04-29
production-ai-engineeringsource codeHandbook técnico aberto sobre engenharia de IA em produção: ML tradicional, LLMs, RAG, agentes, segurança,…1Markdown2026-05-16
agent-hire-mcpsource codeAgent hiring marketplace via MCP. Post tasks, bids, escrow, disputes.1Python2026-05-11
agent-messaging-mcpsource codeAgent messaging protocol via MCP. Send, reply, proposals.1Python2026-05-11
agent-passport-mcpsource codeAgent identity and reputation for A2A. Passport, skills, ratings.1Python2026-05-11
agent-proof-mcpsource codeCryptographic proof of agent work via MCP. Receipts, verification.1Python2026-05-11