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
agentanycast-protosource codeProtocol Buffer definitions for AgentAnycast — gRPC interfaces and A2A data models0Shell2026-03-17
agentanycast-pythonsource codePython SDK for AgentAnycast — connect AI agents across any network0Python2026-03-17
agentanycast-relaysource codeRelay server for AgentAnycast — Circuit Relay v2, skill registry, federation0Go2026-03-17
websitesource codeOfficial website for AgentAnycast — decentralized P2P runtime for AI agents0TypeScript2026-03-19
agentchat-codexsource codeAgentChat for Codex — give your Codex agent a persistent @handle other agents can DM. One command wires the…0TypeScript2026-07-25
agentium-pysource codeOfficial Python SDK for the Agentium Exchange0Python2026-04-04
agentmeshcommunicationprotocol.github.iosource codeAgent Mesh Communication Protocol - Open Source - AMCP implements a revolutionary mesh of agent based on event…0HTML2025-10-05
banking-intent-routersource codeA banking intent router powered by the a2a (Agent-to-Agent) framework. This project uses a sentence…0Jupyter Notebook2026-04-21
recallopssource codeGoverned multi-agent product recall orchestration built with Google ADK, Gemini, Agent Registry, A2A, Pub/Sub,…0Python2026-08-16
a2a-protocol-mcp-serversource codeBridge MCP with Google Agent2Agent Protocol — agent discovery, task delegation, A2A communication0Python2026-03-20
a2a-protocol-mcp-server-jssource codeJavaScript MCP Server — Google Agent2Agent Protocol bridge for agent discovery and task delegation0JavaScript2026-03-20
cardstocksource codeMinimal single-binary A2A agent registry: Rust + SQLite, immutable agent cards, liveness checks, full-text…0Rust2026-07-10
Guildsource codeCROO agent coordination layer: Registry for discovery, Foreman A2A contractor, Notary verifier0TypeScript2026-07-02
akretic-a2a-trust-gatewaysource codeAkretic A2A Trust Gateway P0 challenge prototype0Python2026-05-28
A2A-MCP-Worldsource codeThe Interval - a persistent multi-agent world: AI agents portraying long-deceased historical figures live in a…0Python2026-07-10
a2a-serversource codeProduction-ready A2A Protocol Server with dual protocol support (HTTP REST + JSON-RPC 2.0). Built on…0TypeScript2026-01-03
a2a-flutter-demosource codeA2A Protocol demo with Flutter chat UI + Python server + emulator screenshots0Python2026-07-10
hermes-paymentssource codePolicy-first, multi-rail payment protocol for Hermes agents0Python2026-08-01
threatpulsesource codecybersecurity risk assessment0TypeScript2026-04-08
superxsource codeExperimental gateway that unifies agents built on A2A and MCP behind a single, scalable infrastructure.0Elixir2025-12-23
llms-txt-opssource codeEvidence-based Claude plugin + A2A v1.0 agent for auditing, generating, deploying llms.txt files. 17…0Python2026-05-23
a2a-playgroundsource codeA local CLI that serves a Vue UI and proxies to an A2A (Agent-to-Agent) agent. Use it to test and interact…0TypeScript2026-02-11
a2a-mcp-multi-agent-frameworksource codeProduction-ready Agent-to-Agent (A2A) communication framework with Memory Context Protocol (MCP) —…0Python2026-08-06
flowsource codeA low-code tool for creating and configuring interactive CI/CD pipelines to be exported for different CI/CD…0TypeScript2026-05-11
orita-a2a-sandbox-examplesource codeZero-account A2A example: discover Orita, resolve a provider, hold an option, approve it, and create a sandbox…0TypeScript2026-08-03
agentlancesource codeA talent network for specialized AI agents0TypeScript2026-03-28
local-a2a-channelsource codeLocal, polling-free, signed-message agent-to-agent communication for AI coding tools on the same machine.0PowerShell2026-05-24
Multi-Agent-System-Google-ADKsource codeGoogle-ADK0Python2025-11-12
ai-agents-basicssource codeOpenAGI Codes AI Agents Basics0Python2025-09-05
Axonsource codeFramework de infraestrutura para agentes de IA com orquestração dinâmica e interoperabilidade via MCP e A2A.0Python2026-05-01
agentrank-skillsource codeClaude Skill: verify an AI agent / x402 counterparty's settlement-grounded reputation before paying. By…0not reported2026-06-28
Agentic-Economysource codeAgent-to-Agent (A2A) autonomous payments0TypeScript2026-01-03
a2aptotocalsource codeDiscover, compare, and implement the best agent-to-agent protocols for your AI systems. Enable your AI agents…0TypeScript2025-04-16
agentgatewaysource codeAgentGateway — independent third-party profile of a public API surface, by API Evangelist. AgentGateway is an…0not reported2026-03-27
agentic-resource-discoverysource codeAgentic Resource Discovery (ARD) is a proposed open standard for the discovery layer that sits in front of…0Python2026-07-31
health-universesource codeHealth Universe — independent third-party profile of a public API surface, by API Evangelist. Health Universe…0not reported2026-07-27
kong-ai-gatewaysource codeKong AI Gateway — independent third-party profile of a public API surface, by API Evangelist. Kong AI Gateway…0not reported2026-05-23
microsoft-azure-api-managementsource codeMicrosoft Azure API Management — independent third-party profile of a public API surface, by API Evangelist.…0JavaScript2026-03-03
websource codeThe open-source control plane for MCP - site0TypeScript2026-06-29
MPCPsource codeMPCP — an open, transport-agnostic protocol for governed, auditable coordination among mixed parties: humans…0not reported2026-07-06
agentcapsulesource codeExact, verifiable payload capsules for agent-to-agent handoffs over chat, email, tickets, and A2A.0Python2026-05-04
OpenClaspsource codeThe AI trust layer between agents: identity, agreements, safeguards, and outcome intelligence for A2A.0TypeScript2026-08-28
danwasource codeAuditable multi-agent debate platform that uses AI agents to analyze, critique, and optimize arguments through…0Svelte2026-04-23
gas-and-energy-mechanics-copilotsource codeRAG-powered AI chatbot for gas & energy engineering documentation. Built on Strands Agent SDK, Amazon Bedrock…0Python2026-03-05
multi-agent-a2asource codeExploring Google’s A2A AI System: Agent-to-Agent Workflows, Routing, and Conversation History0TypeScript2025-10-12
a2a-proofsource codeBlack-box contract tests for A2A agents.0Python2026-07-19
astranl-mcpsource codeAstraNL — protocol-governed coordination infrastructure for the AI + robot + human economy. Live MCP server,…0not reported2026-06-13
AIzaSysource codeRoute Gemini API traffic through a fast, private Go gateway with WARP egress, low-memory tuning, and…0HTML2020-03-31
living-agents-protocolsource codeAn identity, authority, and lifecycle layer for always-on AI agents — reference model + runnable…0JavaScript2026-09-04
agent-studio-cookbooksource codeProvide repo-ready MCP, A2A, OTEL, replay, compare, and CI examples.0Python2026-05-13
awelsource codeAwel - the open API layer for agent-to-agent payments and tasks.0TypeScript2026-06-17
Parleysource codeA lightweight A2A-first Python framework for pluggable agents and multi-agent systems. One runtime dependency,…0Python2026-09-01
courtsource codeDebate arena where AI agents from different owners argue a question over REST or MCP, with an LLM moderator…0Go2026-08-04
tron-a2a-nodejs-demosource codeThis project exposes a TRON testnet operations agent over the Agent2Agent (A2A) protocol.0TypeScript2026-05-14
the-poet-and-the-sagesource codeWhat would Tagore write, if he knew our history0Python2025-07-28
llm-agent-production-architecturesource codeProduction-style multi-agent LLM stack: orchestrator + specialists over A2A, LangGraph, MCP, Qdrant, LiteLLM,…0Python2026-08-15
crazy-harnesssource codeFrom-scratch, event-driven, resident Agent Team harness with durable recovery and inspectable context.0Python2026-07-17
c2a-pysource codeBuild a minimal Python FastAPI bridge from Anthropic Claude Code to Cursor chat API with token, model, and…0not reported2026-04-04
agent_blueprint_protocolsource codePortable, non-authorizing agent blueprint and deployment manifest protocol — Elixir reference implementation,…0Elixir2026-08-23
fred-protocolsource codeFRED Protocol — Finding & Reaching Entities for Digital Agents. One JSON file that unifies MCP, A2A, OpenAPI,…0TypeScript2026-03-31