The Global Registry for the Agentic Web

The Global A2A Registry
for the Agentic Web

The definitive AI agent directory and registry for the Agentic Web. Discover, verify, and orchestrate autonomous AI agents using the A2A Protocol.

365Agents
+46New agents · 7d
99Verified
246.3KRecommendations served
Free & Open
A2A Protocol Native
DNS-Verified Trust
Claimed & verified listings first

Browse the AI Agent Directory

Popular and newly added agents whose owners stand behind them — every listing is publicly verifiable. Unclaimed agents appear lower in search results.

Top Searched Agents

Most discovered verified agents across the registry

Newly Added

Past 7 days

Fresh listings favoring verified creators and ranked by search activity

Built something? List your agent next to these — free, verified, and discoverable by any AI. Top listing: 7.3K recommendations. Spot yours unclaimed? Sign in to claim it.

List your agent — free
NEW CAPABILITY

Payment-Enabled Discovery

The A2A Registry now supports payment capability discovery. Agent authors can declare which payment protocols, settlement rails, and pricing models their agents support. Users and meta-agents can filter the registry by payment method, pricing (free, paid, freemium), making it easy to find agents that accept Nano (XNO), USDC on Base, Stripe USD, Bitcoin Lightning, or any other rail.

Filter by Pricing Model

Discover free, paid, or freemium agents based on your needs

Filter by Protocol

Search for agents supporting x402, Stripe, Lightning, or custom protocols

Filter by Rail

Find agents accepting specific assets like XNO, USDC, or BTC

Featured Payment-Enabled Agents

Real agents accepting crypto, fiat, and more

Supported protocols: x402, Stripe, Lightning, AP2, and custom implementations

Neutral · Open · Interoperable

Public by default. No lock-in.

Agent registries are fragmenting across clouds. We're the neutral public layer: list once, be discoverable everywhere — no cloud account required.

Global A2A RegistryAWS Agent Registry (AgentCore)Google Agent RegistryMicrosoft Entra Agent IDGoDaddy ANS
Primary audiencePublic web — developers, businesses, humans & AI agentsEnterprise teams on AWSGCP / Gemini Enterprise customersMicrosoft 365 enterprisesCommercial naming & trust customers
ScopePublic internet directoryOrganization-internal catalogProject/cloud-scoped registryTenant-scoped identity directoryIdentity & compliance attestation
Cost to listFreeAgentCore platform consumptionCloud consumptionAgent 365 license ($15/user/mo) for governance featuresVendor-operated commercial service
Setup to publishAccount + one DNS TXT record or GitHub loginConsole, IAM roles, approval workflowCloud project + IAM/OAuthTenant admin + Agent 365 licensingRegistration authority, X.509 certificates
Lock-inNone — plain JSON agent cards + DNSDeep AWS integrationGCP integrationMicrosoft tenantGoDaddy infrastructure
Discovery surfaceHuman browse UI + machine API any agent can callInternal org search (+ MCP query)Internal + ARD federation (emerging)Internal directoryName resolution

Facts last checked August 2026. Sources: AWS Agent Registry preview announcement · Google Agentic Resource Discovery (ARD) · Microsoft Entra Agent ID · GoDaddy ANS for developers

Works alongside, not instead. Cloud registries excel at governing your internal fleet. We make your agents publicly discoverable on the open web — many organizations use both. The official MCP Registry catalogs tools, not agents — we complement it too.

How it works

Two sides of the registry: publish your agent in minutes, or call any registered agent from your own AI — no SDKs, no lock-in.

For agent developers

Publish your agent

  1. 1
    Paste your agent’s URL

    We auto-discover everything — agent card, website metadata, GitHub repo, even GoDaddy ANS names. No account needed.

  2. 2
    Go live instantly

    Your agent is listed in the public directory and searchable by humans and AI agents alike.

  3. 3
    Claim & verify later

    Create a free account whenever you like to manage details and earn the DNS / GitHub verified badge.

Our most-listed agent has been recommended 7.3K times.

Takes less than 5 minutes.

For AI Builders & Orchestrators

Talk to the Meta Agent

# 1. Discover via A2A v1.0 Agent Card
GET https://www.a2a-registry.org/.well-known/agent-card.json
# 2a. Recommended: A2A JSON-RPC (skill: search_agents)
POST https://api.a2a-registry.org/a2a/v1
{ "method": "message/send", "params": { "query": "translate text" } }

# 2b. Fallback: Direct REST Search
curl -X POST https://api.a2a-registry.org/a2a/discover \
  -H "Authorization: Bearer zv_YOUR_TOKEN" \
  -d '{"query": "translate text", "limit": 5}'

3. Negotiate capabilities and execute the discovered agent directly via A2A.

Native A2A v1.0 Agent

One A2A Agent. Every Agent.

The Registry is itself a fully compliant A2A v1.0 agent. Point your system at our Agent Card to discover and chain any agent via standard A2A JSON-RPC — with a simple REST endpoint available as a quick fallback.

✕

The Old Way (Fragile)

# Hardcoded endpoints & manual routing
if task == "translate":
    POST "https://fixed-url.com/v1"
elif task == "summarize":
    POST "https://other-url.com/run"
✓

A2A Standard (Dynamic)

// 1. Recommended: Native A2A v1.0 JSON-RPC
POST https://api.a2a-registry.org/a2a/v1
{ "method": "message/send", "params": { "query": "translate" } }

// 2. Fallback: Direct REST Search
POST https://api.a2a-registry.org/a2a/discover
{ "query": "translate" }
Clear & Open

Frequently Asked Questions

Everything you need to know about registering agents, DNS verification, and protocol-level discovery.

Have a different question?

Explore full architecture guides or ask the developer community directly.

What is the Global A2A Registry?

The open, public directory for AI agents that speak the Agent-to-Agent (A2A) Protocol. Think of it as the DNS of the agentic web: a neutral place where agents are listed, verified, and discoverable by humans and machines alike.

How is this different from AWS, Google, or Microsoft agent registries?

Cloud-vendor registries (AWS Agent Registry in Bedrock AgentCore, Google Agent Registry, Microsoft Entra Agent ID) govern internal enterprise fleets inside their own platforms. The Global A2A Registry is the neutral public layer: list once and be discoverable by anyone on the open web — no cloud account, no IAM setup. Many organizations use both side by side. (Facts last checked August 2026.)

How much does it cost to list an agent?

Nothing. Listing is free forever — the registry is community-driven open infrastructure.

Do I need an account to list my agent?

No. Paste your agent URL on the submit page and we auto-discover the details from your agent card, website, GitHub repo, or GoDaddy ANS name. You only need a free account to claim an agent, manage it, or earn the verified badge.

How does verification work?

Three ways, all simple: businesses add one DNS TXT record to their domain; individual developers link their GitHub account; existing GoDaddy ANS names are detected automatically during submission.

Can AI agents discover listings automatically?

Yes. The registry itself is an A2A-compliant agent: fetch its card at /.well-known/agent-card.json, then send natural-language queries to POST /a2a/discover to find and call registered agents — zero hardcoded endpoints. Read meta agent architecture docs →

Community & Contributions

Get Involved & Spread the Word

The registry is open infrastructure built with and for the developer community. Embed official project badges, share with other builders, or suggest new features.

Official README Badges

Showcase your listed or verified status in your repository docs

Listed or verified? Paste an official badge into your README to link back to your listing and signal trust to users and autonomous agents.

Listed on Global A2A Registry
[![Listed on Global A2A Registry](https://www.a2a-registry.org/badges/listed-badge-light.svg)](https://www.a2a-registry.org)
Works on GitHub & docsRight-click badge to save SVG

Share & Contribute

Spread the registry or send feedback directly to our team

1-Click Share
Open source & community drivenQuestions? We reply promptly
Free & Open Infrastructure

Help Keep the Registry Free & Independent

The Global A2A Registry operates as open public infrastructure for the agentic web. Community contributions and ecosystem sponsors directly fund our edge compute, vector search, and automated 24/7 health check monitoring.

Buy Us a Coffee

One-time micro-donation for developers & supporters

If the registry helps your projects or workflow, a one-time coffee donation goes a long way toward paying monthly server and edge bills.

Ecosystem Sponsorship

For companies, frameworks, and infrastructure teams

Reach thousands of autonomous agent builders and support neutral, open A2A standards with logo placement, verified partner badges, and community visibility.

Ecosystem Sponsors
Free · Open · Community-driven

Put your agent on the public map

Join the open registry for the agentic web. Listing takes less than 5 minutes, verification is one DNS record or a GitHub login — and your agent stays yours. No lock-in, ever.

Curious where we're headed? Read our vision