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ARIA Protocol — Open Standard for AI Agent Identity & Verification — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Artificial Intelligence →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
soulprotocol.dev ↗	76 match 2 shared topics	Soul Protocol - Verifiable Identity for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentvaultprotocol.org ↗	75 match 2 shared topics	Agent Vault Protocol: Open Standard for AI Agent Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
garlicstamp.com ↗	74 match 2 shared topics	GarlicStamp — Verifiable Identity for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
agentidentityregistry.com ↗	74 match 2 shared topics	AIR — Open Identity & Trust Framework for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentidentityregistry.org ↗	74 match 2 shared topics	AIR — Open Identity & Trust Framework for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentids.org ↗	73 match 2 shared topics	Agent Identity (AID) - Authentication & Authorization for AI Agents \| Open Source	en	artificial-intelligence	robots llmsaihumans	emailphone	none
garl.ai ↗	73 match 2 shared topics	GARL Protocol — Cryptographic verification for AI code	en	information-and-network-security	robots llmsaihumans	emailphone	none
soulprint.digital ↗	72 match 2 shared topics	Soulprint — Decentralized KYC Identity Protocol for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentid.info ↗	72 match 2 shared topics	AgentID - Verified AI Agent Identities	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agenticid.kred ↗	72 match 2 shared topics	AgenticID.kred — Verifiable Identity for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentspassports.com ↗	71 match 2 shared topics	AgentPassport — Identity for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
moltid.ai ↗	71 match 2 shared topics	ClawdID — Identity for AI Agents \| ClawdID.com	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
agentlookup.ai ↗	71 match 2 shared topics	AgentLookup — The Identity Layer for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
4tress.org ↗	71 match 2 shared topics	4tress.org — Decentralized Identity for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
lime.pics ↗	71 match 2 shared topics	LIME — AI Agent Identity & MCP OAuth Provider	en	information-and-network-security	robotsllmsaihumans	emailphone	none
aegisdefi.fun ↗	71 match 2 shared topics	Aegis Protocol — AI Agent Security for DeFi	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentmessaging.org ↗	71 match 2 shared topics	Agent Messaging Protocol (AMP) - Secure Messaging for AI Agents \| Open Source	en	artificial-intelligence	robotsllmsaihumans	emailphone	partial · 8
agentidentity.space ↗	70 match 2 shared topics	AI Agent Identity Simulation	en	artificial-intelligence	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.