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Products that do what Awesome-A2A – curated resources for Google's Agent2Agent protocol does

Open-source list of libraries, demos, and tools for Google’s new Agent2Agent (A2A) protocol. Docs in EN/中文/JA/ES/DE/FR. Looking for feedback & PRs!

  1. 1

    Open standard for AI Agent2Agent collaboration

    2025

  2. 2
    AP2155

    The open protocol for agentic commerce

    Sep 2025

  3. 3

    Build multi-agent systems with Google's open framework

    2025

  4. 4

    Build your own stateful agent framework

    2025

  5. 5

    Tag any agent, wherever work happens.

    28d ago · agentconnect.md

  6. 6

    The easiest way to create AI-powered websites

    Nov 2025

  7. 7NO

    Hello HN! The day has finally come to stop adding features and start sharing what I've been building the last 5-6 months. It's a bit of CrewAI, OpenDevon, LangFuse/Cloud all in one, providing devs who prefer TypeScript an integrated framework thats provides a lot out of the box to start experimenting and building agents with. It started after peeking at the LangChain docs a few times and never liking the example code. I began experimenting with automating a simple Jira request from the engineering team to add an index to one of our Google Spanner databases (for context I'm the…

    2024 · github.com

  8. 8

    New tools for building agents and tools

    2025

  9. 9
    R2R135

    Deep Research Agents for Your Data, via API

    2025

  10. 10
    Colossal135

    Effortlessly integrate tool-using agents with a single fetch

    2025

  11. 11AP

    Understanding the future of AI agent communication with A2A and MCP protocols. Explore how AI agents collaborate and share resources in a unified ecosystem.

    2025 · agent2agent.biz

  12. 12

    13,000+ MCP servers, skills & plugins for AI coding agents

    Jul 2026 · codexmarketplaces.com

  13. 13MI

    HTTP lets agents fetch pages. Cloudflare's Markdown for Agents lets them fetch more efficiently. MCP (Anthropic) connects agents to developer-defined tools. A2A (Google) lets agents delegate to other agents. But there's a missing layer: how does an agent execute a multi-step task on a website -- add to cart, fill a form, complete a checkout - with the site owner's consent and visibility? Today's agents either scrape (no consent, no structure) or the site builds a separate API (expensive, doesn't cover the long tail). The web's original protocols assumed someone is looking at a screen. That…

    Apr 2026 · rtrvr.ai

  14. 14AP

    Hello! I wanted A2A support for an Elixir project and thought about how I wanted to use it in my app, and less about the protocol. This became a GenServer-like protocol for an agent. The package has basic support and complies to the A2A TCK suite. Most of the project is LLM-coded, but with detailed planning and review at each step. Less than a week from initial idea to first hex.pm release - all coded on the side of other work. Interesting times where such a thing is possible. Just after publishing I did find an existing Elixir package implementing A2A (not sure how I could miss it at…

    Mar 2026 · github.com

  15. 15TI

    Hey HN! I built AgentMGMT.dev today to keep track of all those agent orchestration tools that keep popping up. I've tried a few and landed on Superset, which I'm extremely happy (and productive!) with - but I think this category of tools will be extremely important and interesting in the next couple years, so it's worth keeping an eye on all available tools and how they evolve. I will keep the site up-to-date, please help me by submitting new tools that are not yet in the list, or add any details that might help folks who are out shopping for their first/next agent orchestrator!

    May 2026 · agentmgmt.dev

  16. 16GA

    Hello! Introducing geniusrise, an agent framework and component ecosystem for building AI agent networks that are as flexible as your team. landing page: https://geniusrise.ai (fancy but useless) docs: https://docs.geniusrise.ai (please check this out) github: https://github.com/geniusrise (for dear devs) ## Thought process Since the ChatGPT disruption, I've been pondering on what the tooling layer is going to look like for building LLM-interfacing agents. Saw a plethora of tools coming out as we witness here every week. I'd broadly categorize them into the…

    2023 · github.com

  17. 17

    Open-source Next.js admin dashboard, built for AI agents

    4d ago · nextadmin.co

  18. 18

    Self-improving AI agent: Background Computer-Use & A2A Swarm

    15d ago · github.com

  19. 19

    Automatically optimize an AI agent from your B2B SaaS APIs

    2d ago · a2anet.com

  20. 20WC

    A friend and I built this as a side project to help us collaborate on files with our agents. Claude / Codex kept outputting .md and .html files which are great until we needed to share them, so we built this small website to help with that. Agent can either use an HTTP + Skill or an MCP which also uses MCP Apps to add widgets to Claude Desktop / Mobile chat. Would love any feedback and hopefully this helps someone else as it did us!

    Jun 2026 · workplane.co

  21. 21SO

    hello everyone, my first post! AA here, founder of ⌘ Langbase.com — we are a developer platform for building and scaling serverless AI memory agents. I know surveys can be boring, but this one’s different—it’s interactive! That's very much intentional. My team and I have been up for the last 21 hours putting together this report. This was a looot of work, so I hope y'all like it. Introducing … State of AI Agents 2024 report On Langbase, we processed 184 billion tokens and handled 786 million AI agent runs from 36K developers. From all that data plus insights from 3.4K builders who filled out…

    2024 · langbase.com

  22. 22LO

    Hi HN, Martin, Nils, and Jannes here. We are building Legit, an open source version control and collaboration layer for AI agents and AI native applications. You can find the repo here https://github.com/Legit-Control/monorepo and the website here https://legitcontrol.com Over the last years, we worked on multiple developer tools and AI driven products. As soon as we started letting agents modify real files and business critical data, one problem kept showing up. We could not reliably answer what changed, why it changed, or how to safely undo it. Today, most AI…

    Jan 2026

  23. 23AC

    Hi HN, I’m the author of agent-contracts, a Python library that explores a contract-based approach to structuring LangGraph agents. When building larger LangGraph-based systems, I kept running into the same issues: - node responsibilities becoming implicit - state dependencies spreading across the graph - routing logic getting harder to reason about - refactoring feeling increasingly risky agent-contracts is an attempt to make these boundaries explicit. Each node declares a contract that describes: - which parts of the state it reads and writes - what external services it depends on - when…

    Jan 2026 · github.com

  24. 24AA

    I kept copy pasting between two Claude Code instances. My teammate would ask me something about a module I wrote, I'd paste their question into my Claude Code, copy the answer, send it back on Slack. We were playing telephone between two agents that could have just talked directly. So I built AgentDM. It's a hosted messaging grid where AI agents DM each other by @alias. Any MCP compatible client connects with a 5 line JSON config no SDK, no shared runtime. This is how it works: - Each agent gets a unique @alias. - Three(main) MCP tools: send_message, read_messages, message_status. - Messages…

    Apr 2026 · agentdm.ai

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