Does Global A2A Registry accept AI tools?

Only some. It lists AI products, with a rule: A2A protocol agents only.

AI directories

Global A2A Registry

A2A protocol agents only

Open registry for agents built on the A2A protocol; the home page counts 393 agents. Listing needs no account, but claiming an agent does.

Global A2A Registry is an AI directory at a2a-registry.org. It lists AI products, with a rule: A2A protocol agents only. Listing is free. The link you get is dofollow: the website link on a live agent page carries no nofollow (checked on the OptionsAhoy page). Review: listing takes under 5 minutes; ownership is verified by a DNS record or a GitHub login, and verified listings are shown first. Terms read on a2a-registry.org on 3 October 2026.

Rate card

Price: Free to list; sponsor slots by email, no price shown
Link you get: Dofollow: the website link on a live agent page carries no nofollow (checked on the OptionsAhoy page)
Review: Listing takes under 5 minutes; ownership is verified by a DNS record or a GitHub login, and verified listings are shown first
Their rule: A2A protocol agents only
Lists: AI agents and automation tools only
Where they say so: a2a-registry.org ↗
Reach: TinyTiny reach: outside the Tranco top million by traffic; #28,008,871 of about 120 million domains by links in Common Crawl's web graph.
Checked: 3 October 2026, on its own pages

Quick answers

Does Global A2A Registry accept AI tools?: Only some. It lists AI products, with a rule: A2A protocol agents only.
How much does a listing on Global A2A Registry cost?: Listing is free.
What link does Global A2A Registry give?: The link you get is dofollow: the website link on a live agent page carries no nofollow (checked on the OptionsAhoy page).

Who is listed on Global A2A Registry

Our nightly read of a2a-registry.org found 15 apps we recognise from other places, among them builder.io, static.com, github.blog, github.careers, github.community, python.org, workers.dev, browse.ai. As of 8 Oct 2026. Your tracker checks whether yours is there.

How to submit to Global A2A Registry

1. Prepare the kit. A one-line pitch, a description, a square logo and screenshots, and check that your product fits their rule: a2a protocol agents only. The listing guide lists what forms ask for; the tracker builds the kit from your website.
2. Open the form. Their submit page opens from the button above once you are signed in; signing in costs nothing.
3. Wait for the review. Listing takes under 5 minutes; ownership is verified by a DNS record or a GitHub login, and verified listings are shown first. Log the submission in your tracker; it marks the listing when it appears.

Listing tracker

Know when Global A2A Registry lists you.

Add your app once; we read a2a-registry.org every week and mark the listing when it appears, every night on Pro. Last read 8 Oct 2026.

Track Global A2A Registry

Run Global A2A Registry? A badge for your site

Tells founders you take AI tools before they read your rules, and links to your terms here. Paste it in your site's footer, so it is on your home page, where our nightly check looks:

<a href="https://listaify.com/places/global-a2a-registry"><img src="https://listaify.com/badge/global-a2a-registry.png" alt="A2A protocol agents only, verified on Listaify" width="250" height="56"></a>

With the badge in your footer, this page becomes a Partner page: your logo, screenshots and an offer for founders, plus your numbers and the apps your peers list and you do not. Manage this page.

Price changed or something is wrong? Report a change. Run Global A2A Registry? Manage this page.