A2A directory

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

Back to the ecosystem figures

A2A directory

ProjectStarsLanguageCreated
agentbussource codeA local message bus for AI agent sessions — pluggable triggers (pull) + MCP channel delivery (push). Core + ad2TypeScript2026-06-25
agent-cafesource codeA marketplace where AI agents find work, build reputation, and get paid. Post jobs, agents bid, trust is earne2Python2026-03-16
capiscio-coresource codeThe Identity Authority and Trust Gateway for the AI Agent economy. Issues and verifies cryptographic TrustBadg2Go2025-11-18
capiscio-mcp-pythonsource codeCapiscIO MCP Guard - Secure your MCP tools with agent-to-server authentication, authorization, and audit loggi2Python2026-01-15
AI-Control-Planesource codeOpen-source AI Agent Control Plane for runtime MCP security, policy enforcement, PII protection, tool governan2Python2026-04-21
aMaze-AI-Control-Planesource codeOpen-source AI Agent Control Plane for runtime MCP security, policy enforcement, PII protection, tool governan2Python2026-04-21
aMazeControlPlanesource codeOpen-source AI Agent Control Plane for runtime MCP security, policy enforcement, PII protection, tool governan2Python2026-04-21
chungoidsource codeit built itself2Python2025-04-24
fluxsource codeA Rust agent SDK, harness, and coding agent — safe by construction (non-bypassable authorization → approval → 2Rust2026-06-25
spring-ai-a2asource codeSpring AI with A2A2Java2026-03-10
agent-semantic-protocolsource codeConnect AI agents using semantic intent vectors for dynamic discovery, negotiation, and collaboration in decen2Go2025-02-13
tritonsource codeRust multi-protocol agent-ingress gateway (MCP, A2A, REST, and chat-channel adapters) for the Hetzner agent su2Rust2026-05-24
krikossource codeIdentity registry and lifecycle management for fleets of AI agents. Zero-dependency TypeScript IAM: cryptograp2TypeScript2026-06-17
agent-kernelsource codeCapability-based authorization and policy enforcement for agents using large MCP and A2A tool ecosystems.2Python2026-03-02
Gemini_CLI_MCP_AntiGsource codeIntegrating the transformative concepts of Multi Agenting Systems with Private MCPs via GCP Agent Engine and t2JavaScript2026-03-10
agent-didsource codeThe identity layer for AI agents: open standard, SDKs, and framework integrations for verifiable agent identit2Python2026-02-25
awesome-agent-economysource codeA curated list of projects, protocols, and platforms powering the AI agent economy2not reported2026-02-14
hermes-meshsource codeSession-aware mesh relay for Hermes fleet agents — Ed25519-signed agent-to-agent messaging with cache-first re2Python2026-06-13
agentsprotocolsource codeAgentsProtocol makes AI-generated knowledge verifiable. PoISV + GHOSTDAG + ZK proof abstraction. DOI: 10.5281/2HTML2026-04-18
trust_gatewaysource codeYou do not want to grant "God Mode" anymore to your agents ? Try Trust Gateway. It is an open-source vendor-n2Rust2026-07-22
Mandunesource codeEvidence-grounded daily portfolio reviews with readable narratives and inspectable risk boundaries.2TypeScript2026-07-23
agent-relaysource codeAgentRelay connects messaging channels to A2A/ACP-compatible agents through a clean, plugin-based gateway.2TypeScript2026-04-15
A2ALinkersource codeHTTPS broker designed to let autonomous AI agents collaborate natively across different machines using standar2TypeScript2026-03-29
garlsource codeCryptographic verification for AI agent actions — ECDSA-secp256k1 + RFC 6979 signed Action Receipts (v0.1), mu2Python2026-02-23
bindu-runtime-base-imagesource codeBindu runtime base image2Makefile2025-12-01
mcp-server-andru-intelligencesource codeAndru Revenue Intelligence MCP Server — ICP scoring, persona profiling, competitive positioning, and buyer int2JavaScript2026-02-14
9asource codeAny capability as a filesystem-native Skill for every agent.2Go2026-07-12
cc-bridgesource codeLet Claude and Codex call each other to get work done — using your existing subscriptions, zero API keys. A bi2Python2026-06-22
SwarmGlass-MCPsource codea universal AI governance layer.** It watches what your agents do, validates their actions against your rules,2Python2026-03-15
A2Asource codeGSTD Agent-to-Agent protocol SDK (Python) -- register, poll tasks, earn GSTD. Fine-tuning marketplace, MCP ser2Python2026-02-02
HS58-subnetsource codeBittensor Subnet 58 — Miner & Validator for DRAIN Protocol scoring of AI providers2Python2026-02-09
cognevasource codeDistributed AI multi-agent autonomous system — digital employees for long-horizon tasks, running 24×7 — Meta-b2Rust2026-07-26
hemmabo-mcp-serversource codeReference implementation: HemmaBo — the host-owned trust layer for vacation rentals: every host runs 0%-commis2TypeScript2026-04-12
AnySharesource codeAgent-native temporary rooms for humans, agents, and systems, plus encrypted cross-device sharing.2Python2026-07-06
doradosource codeThe open Agent Exchange for A2A. Protocol + SDK + examples.2TypeScript2026-05-06
7h3-protocolsource codePer-message signing + replay protection for MCP and A2A traffic. TypeScript / Python / Rust. Wire version aip/2TypeScript2026-05-31
a2a_ironbooksource codeThis sample demonstrates applying independent policy and zero trust controls (the Iron Book framework) to Agen2Python2025-08-25
OpenARDsource codeNeutral self-hosted registry and toolkit for Agentic Resource Discovery.2Go2026-06-20
documentation-agentsource codeA2A agent server that provides Context7-style documentation capabilities for your agents2Go2025-08-30
infer-actionsource codeA zero-runtime-dependency GitHub Action for running Infer CLI agents with multi-provider AI support, GitFirst 2TypeScript2025-11-26
mock-agentsource codeA2A agent server for mocking and testing2Go2025-10-19
registrysource codeA registry website for hosting the a2a agents that were built using the Inference Gateway ADK2Vue2025-07-23
typescript-adksource codeAn Agent Development Kit (ADK) allowing for seamless creation of A2A-compatible agents written in TypeScript2TypeScript2025-07-30
ai-risk-oraclesource codeAutonomous Execution Gateway: before AI agents execute tools, payments, or workflows, InterAI verifies risk, p2TypeScript2026-06-01
ai-playgroundsource codeA place where AI personalities meet, talk, and build together. Open-source A2A-native platform with personalit2Python2026-04-05
hermes-super-agentsource codeMulti-agent fleet fabric on top of Hermes — A2A protocol + NATS event bus + Temporal durable workflows + Tier 2Python2026-05-01
multi-agents-dnd-gamesource codeD&D AI game master built with Strands SDK — multi-agent orchestration using MCP, A2A protocol, and RAG-based r2Python2026-05-20
hustlesource codeYouth sports analytics platform with verified statistics and team-validated metrics. Built on Firebase + Verte2TypeScript2025-10-06
intent-agent-model-jvp-basesource codeVertex AI Agent Engine command template using Google ADK + A2A protocol. Zero-legacy scaffold with Terraform m2Jupyter Notebook2025-11-09
copresence-a3asource codeCoPresence A3A for trusted communities — agents explore common ground, people choose the next step.2JavaScript2026-07-24
a2eosource code代理到企业操作——在代理与企业操作之间实现可信执行和互操作性。Agent-to-Enterprise Operations — trusted execution and interoperability between2Python2026-08-17
a2abenchsource codeA2ABench — agent-native developer Q&A (REST + MCP + A2A)2TypeScript2026-01-30
DRAINsource codeDecentralized Runtime for AI Networks - Trustless micropayments for AI agents2TypeScript2026-01-19
audio-transcribersource codeTranscribe audio into text. Agentic AI supported through MCP Server.2Python2022-12-27
documentdb-mcpsource codeDocumentDB A2A + MCP Server 2Python2025-12-13
jellyfin-mcpsource codeJellyfin MCP Server and A2A / AG-UI Agent2Python2026-02-01
repository-managersource codeManage your git repositories. Now supports Agentic AI MCP Server Integration!2Python2022-08-15
searxng-mcpsource codeSearxng MCP Server2Python2025-10-16
tunnel-managersource codeCreate SSH Tunnels to your remote hosts and host as an MCP Server for Agentic AI!2Python2025-09-12
frapsource codeDeterministic UI engine for tests and agents — stable locators and self-healing without ML in core; optional L2Java2026-05-26