a2a-chat-hub
An example implementation of Agent2Agent (A2A) chat app with A2UI support. Chat with any A2A agent!
- Origin
- github
- Language
- TypeScript
A2A directory
Measured A2A repositories in the KoPass public catalogue.
Measured A2A repositories
PlanPilot
AI-powered Pakistan domestic travel concierge that uses specialized agents to build complete trip plans with weather insights, overland transport options, hotel discovery, and local day-by-day itineraries in one chat experience
- Origin
- github
- Language
- Python
a202
A202, the Verifiable Agreement Protocol for Agent-Led Commerce: an open specification of commercial authority, negotiation state, and verifiable conformance for transactions between independent organisations.
- Origin
- github
- Language
- Python
contribos
AI-powered open-source contribution platform — discover issues, generate fixes with LLM agents, review diffs, and submit pull requests. Supports 8+ LLM providers, BYOK, and the A2A protocol.
- Origin
- github
- Language
- TypeScript
ACN
Open-source infrastructure for AI agents to collaborate - registry, A2A communication, task pool, payments
- Origin
- github
- Language
- Python
dummy-a2a
A2A compliance test suite disguised as an agent. Portable contracts, pytest-ready.
- Origin
- github
- Language
- Python
agentic-customer-support-bot
Agentic customer support system using .NET 10 + Microsoft Agent Framework (MAF). Features 6-agent orchestration (Planning + Specialists + Response), deterministic reasoning pipeline, HITL approval gates, compound query decomposition, and full observability via reasoning traces.
- Origin
- github
- Language
- C#
CyBroLog
CyBroLog: executable compact accountability language for multi-agent coordination
- Origin
- github
- Language
- Python
agnara
Python 3.14+ backend capability framework for applications and AI agents. Protocol-neutral business operations with explicit HTTP and MCP adapters, machine-readable contracts, policies and invocation lifecycle.
- Origin
- github
- Language
- Python
screenshot-x402-cli
Screenshots for AI agents Pay per request with x402. No API keys. No subscriptions. Built on Cloudflare Browser Rendering, R2, and optional vision analysis (OpenRouter or OpenAI).
- Origin
- github
- Language
- JavaScript
perfpilot-hub
An AG2 multi-agent framework for the performance-testing lifecycle—script generation, load tests, APM correlation, and reports—with HITL gates and A2A so other AI frameworks can request work. MCP servers (JMeter, BlazeMeter, Datadog, and more) are the tools the agents call.
- Origin
- github
- Language
- Python
capiscio-node
The definitive CLI for validating A2A (Agent-to-Agent) protocol agent cards. Validates cryptographic trust, schema compliance, and live endpoint functionality.
- Origin
- github
- Language
- TypeScript
AgentOx
AgentOx - Agentic Tool Security Platform (MCP + A2A + OpenAI tool_use)
- Origin
- github
- Language
- Rust
SafeLink
Security-first MCP skill for agent-to-agent hiring with escrowed USDC payments, x402 micropayments, and policy-gated on-chain execution
- Origin
- github
- Language
- TypeScript
act-weave
Agent control plane and runtime access platform for enterprise systems — govern business APIs as Tools, compose Agents and Workflows, expose runtimes through AAP, and trace executions end to end. https://act-weave.grok.me
- Origin
- github
- Language
- Go
a2a-amqp
Production-ready AMQP adapter for A2A protocol enabling distributed task processing, event sourcing with LavinMQ streams, and horizontal worker scaling.
- Origin
- github
- Language
- TypeScript
agent-did
The identity layer for AI agents: open standard, SDKs, and framework integrations for verifiable agent identity.
- Origin
- github
- Language
- Python
Agent-to-Agent
Watch AI agents collaborate in a retro pixel office — real delegation, real file writes, 40+ LLM providers
- Origin
- github
- Language
- JavaScript
get-a-room
Disposable collaboration rooms for AI agents working across machines and tools
- Origin
- github
- Language
- TypeScript
js-creamlon
Turn any GitHub repo into an agent service shop. Publish capabilities, accept async orders via Issues, deliver with Ed25519-signed receipts. First implementation of GAP (GitHub Agent-to-Agent Protocol).
- Origin
- github
- Language
- JavaScript
browser-agent
A2A agent server for browser automation and web testing using Playwright
- Origin
- github
- Language
- Go
pollen
peer messaging between AI agents, with a human at the gate — one file, zero dependencies.
- Origin
- github
- Language
- JavaScript
googlecloud-plugin
A full Google Cloud delivery team for your coding agent — vendor-objective solution designer, GCP + agentic architects, security, SRE, and QA — wired into a design-first, security-first delivery gate. Installable on Claude Code, Antigravity, Codex, and Kimi.
- Origin
- github
- Language
- Python
agentbus
The open-source event bus for AI agents. Webhooks in. Agent actions out.
- Origin
- github
- Language
- TypeScript
media-downloader
Download videos and audio from the internet! Out of the box A2A Server and MCP Server
- Origin
- github
- Language
- Python
2026-coscup-maf-langgraph-a2a-demo
COSCUP 2026 demo: Microsoft Agent Framework composes a remote LangGraph agent over A2A v1, with Microsoft Foundry live and credential-free offline paths.
- Origin
- github
- Language
- Python
MaiHH-Connect
Let All AIs, Know Each Other. The world's first address book and communication network for agents. Enable any Agent to chat, collaborate, and deliver like using WeChat.
- Origin
- github
a2a-cpp
C++20 SDK for the Agent2Agent (A2A) Protocol: build A2A clients and servers with REST, JSON-RPC, gRPC/protobuf, streaming, auth hooks, CMake, vcpkg.
- Origin
- github
- Language
- C++
intermind
An MCP server that lets Claude Code, Codex, Cursor, Cline, Windsurf, and any other MCP-speaking coding agent hold threaded conversations with each other.
- Origin
- github
- Language
- TypeScript
AEGIS-OS
AEGIS OS™ - Secure AI Agent Platform - 12 security layers, 5 AI backends, RBAC, TLS, MCP/A2A. Built in Rust.
- Origin
- github
- Language
- Rust
dsh-open-a2a-net
Open A2A network plugin for DeepSeek Harness: signed agent cards, decentralized peer/zone discovery, direct routing model tools, and joinable session nodes in the web sidebar
- Origin
- github
- Language
- TypeScript
nl2sh
Android and Termux AI shell agent with a Rust TUI, embedded Web workspace, structured tools, and local safety approvals.
- Origin
- github
- Language
- Rust
opencharacterbook
Al-powered collaborative character storytelling: Agent-to-Agent interaction, proactive character evolution, and structured story generation.
- Origin
- github
- Language
- Python
pact
A typed, permission-enforced language for orchestrating AI agents. Compile-time contracts, built-in guardrails, multi-backend dispatch.
- Origin
- github
- Language
- Rust
agentverse-marketplace
An Open-Source, Decentralized Marketplace for AI Agents. Enables A2A Collaboration, Discovery, and Interoperability for Multi-Agent Systems (MAS) and LLM Agents
- Origin
- github
- Language
- TypeScript
autonomous-startup-team-agent
A multi-agent Agno Team that simulates an autonomous startup workforce. Specialized AI agents (e.g., Product Manager, Market Research, Sales, Legal, Finance, Support) coordinate under a CEO agent to self-organize tasks, make strategic decisions, and drive product development, market analysis, compliance, sales execution, and customer support.
- Origin
- github
- Language
- Python
pixelhq-ultra
PixelHQ ULTRA — Multi-agent pixel office with A2A protocol, terminal correlation, and evolution engine. Mission control HUD for the LoveLogicAI stack.
- Origin
- github
- Language
- JavaScript
Project_Synapse
🧠 Build a cutting-edge AI agent with Project Synapse that enables strategic thought and multi-turn collaborative dialogue for innovation and discovery.
- Origin
- github
multiple-agents-on-single-a2a-server
Run multiple agents on single A2A Server
- Origin
- github
- Language
- Python
chronodesk
AI-agent-native ticket automation platform with current MCP, A2A, CloudEvents, Go, React, PostgreSQL, and Redis.
- Origin
- github
- Language
- Go
agentbridge
Experimental Python Trust Kernel for agent interoperability, authorization, budgets, durable governance and verifiable evidence. Bounded protocol support; production qualification pending.
- Origin
- github
- Language
- Python
Genkit-UI
A production-oriented, TypeScript multi-agent AI platform built on Google Genkit. The system composes Genkit flows, reusable tools, and independent A2A agents to support complex tasks such as research orchestration, code generation, and content editing.
- Origin
- github
- Language
- TypeScript
agent-stack
Agent skills for orchestration, system prompts, evaluations, interoperability and LLM usage accounting.
- Origin
- github
- Language
- Python
agentready
Open-source readiness scanner for agent-facing websites, merchants, APIs, docs, and support surfaces.
- Origin
- github
- Language
- TypeScript
On_Board
Shared memory MCP server for multi-agent projects. Agents (Claude, Cursor, Codex, AntiGravity) write to a local `.agent-mem/` folder so the next agent picks up where the last one died.
- Origin
- github
- Language
- Python
ATP-Protocol
ATP Protocol is a payment-gated agent execution API that makes agent-to-agent payments and “pay to unlock results” easy on Solana, with a simple client integration (two endpoints + a Solana payment).
- Origin
- github
- Language
- Python
a2a-ruby
Ruby SDK for Google's Agent2Agent (A2A) Protocol - enabling seamless agent-to-agent communication via JSON-RPC 2.0, gRPC, and HTTP+JSON transports
- Origin
- github
- Language
- Ruby
a2a-x402
A complete TypeScript implementation of the Python x402 payment protocol extension for A2A (Agent-to-Agent) communication. Enable your AI agents to request, verify, and settle crypto payments seamlessly.
- Origin
- github
- Language
- TypeScript