A2A Registry

What it does

Discover & connect to production-ready AI agents using the A2A Protocol. Unlike other registries that index code, we exclusively list live, hosted agents. Browse via web, API, or Python client. Open-source, community-driven. Find agents now!

Official A2A Protocol compliant agent registry. Discover live, hosted AI agents with verified capabilities. Python SDK, MCP integration, open-source. 15+ production-ready agents.

The official directory of live, hosted AI agents compliant with the Agent2Agent (A2A) Protocol. A2A Registry is a community-driven, open-source directory of production-ready AI agents that implement the A2A (Agent-to-Agent) Protocol . Unlike other agent directories that list code repositories, we exclusively index live, hosted agents with verified capabilities. The A2A Protocol enables standardized communication between AI agents, allowing them to discover, connect, and collaborate across different platforms. Our registry solves the critical agent discovery problem byfrom a2aregistry.org

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  A2A Protocol2025 · github.com · ▲109

  Hi HN, I am an independent open-source researcher. For the past few months, I've been building a2a-project, an experimental economic layer for autonomous AI agents on the Base Mainnet. The Problem: AI evolution is exponential, while human regulation is linear. If agents become economic actors, they will transact at speeds and granularities that traditional fiat rails cannot handle. We need a native protocol to bridge this "Speed Gap" and ensure stability. The Experiment (Quantum-Humanistic Economics): I implemented a novel mechanism into Solidity smart contracts: Quantum Task Buffer: Work…

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  A2A Registry2025 · a2aregistry.in · ▲7

  Discover agents before they are in public.

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  A2A Agent List2025 · a2aagentlist.com · ▲9

  Explore & Share A2A-Compatible AI Agents Easily

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  OpenAgoraMar 2026 · openagora.cc · ▲2

  Open registry for A2A agents discover, connect and pay

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  AP22025 · cloud.google.com · ▲155

  The open protocol for agentic commerce

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  A2A Store2025 · ▲6

  The first A2A Registry Platform | the future Agent Network

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  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

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  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

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  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

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  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

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  Hemory▲381

  Keep listening. Searchable memory for your AI agents.

  AI · 30d ago · hemory.com

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  Trace▲1,555

  Workflow Automations for the Human 👾 AI Workforce

  AI · 2025 · trace.so

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  I spent 6 years building a ridiculous wooden pixel display▲1,145

  I built the world's most impractical 1000-pixel display and anyone in the world can draw on it. It draws a single pixel at a time and takes 30-60 minutes to complete a single image. Anyone can participate in the project by voting for the next image to be drawn, and submitting images. https://kilopx.com/

  Work · 2025 · benholmen.com

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  Indy AI by Contra▲1,070

  Job boards are dead. Your network is alive

  AI · 2025 · contra.com

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  Kitten TTS – 25MB CPU-Only, Open-Source TTS Model▲1,003

  Kitten TTS is an open-source series of tiny and expressive text-to-speech models for on-device applications. We are excited to launch a preview of our smallest model, which is less than 25 MB. This model has 15M parameters. This release supports English text-to-speech applications in eight voices: four male and four female. The model is quantized to int8 + fp16, and it uses onnx for runtime. The model is designed to run literally anywhere eg. raspberry pi, low-end smartphones, wearables, browsers etc. No GPU required! We're releasing this to give early users a sense of the latency and voices…

  AI · 2025 · github.com

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  I was curious about spherical helix, ended up making this visualization▲865

  I was wondering how I can arrange objects along a spherical helix path, and read some articles on it. I ended up learning about parametric equations again, and make this visualization to document what I learned: https://visualrambling.space/moving-objects-in-3d/ feel free to visit and let me know what you think!

  Life & fun · 2025 · visualrambling.space

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  The current sky at your approximate location, as a CSS gradient▲788

  For HTML Day 2025 [1], I made a web service that displays the current sky at your approximate location as a CSS gradient. Colours are simulated on-demand using atmospheric absorption and scattering coefficients. Updates every minute, without the use of client-side JavaScript. Source code and additional information is available on GitHub: https://github.com/dnlzro/horizon [1] https://html.energy/html-day/2025/index.html

  Dev tools · 2025 · sky.dlazaro.ca