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Agent Auth by Vigil — Identity for AI Agents — 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 Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
basedagents.ai ↗	81 match 2 shared topics	BasedAgents — Identity for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
4tress.org ↗	75 match 2 shared topics	4tress.org — Decentralized Identity for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
sanctumai.dev ↗	73 match 2 shared topics	SanctumAI — The identity control plane for autonomous AI agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
1id.com ↗	72 match 2 shared topics	1id.com — Hardware-Backed Identity for AI Agents & Relying Parties	en	information-and-network-security	robots llmsaihumans	emailphone	none
hashpunch.com ↗	71 match 2 shared topics	HashPunch \| Trust, Identity, and Compliance for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
useagentguard.com ↗	70 match 2 shared topics	AgentGuard — Security & Cost Control Layer for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
happyenforceauth.com ↗	70 match 2 shared topics	EnforceAuth — Authorization for the AI agent era	en	artificial-intelligence Sanity	robotsllmsaihumans	emailphone	none
usestrata.dev ↗	69 match 2 shared topics	Strata — The Trust Layer for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
lumeyon.com ↗	69 match 2 shared topics	Lumeyon — AI Agent Security Scanner	en	information-and-network-security	robotsllmsaihumans	emailphone	none
usezn.com ↗	69 match 2 shared topics	ZN — Open Source Zero Trust Layer for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
pledgesec.com ↗	69 match 2 shared topics	PledgeSec — Behavioral Security for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
lumos.com ↗	69 match 2 shared topics	Identity Management for the Agentic Era \| Lumos	en	information-and-network-security	robotsllmsaihumans	emailphone	none
a0.ai ↗	69 match 2 shared topics	Secure AI Agent & User Authentication \| Auth0	US~ en	artificial-intelligence	robotsllmsaihumans	emailphone	none
acidtest.dev ↗	69 match 2 shared topics	AcidTest — Security Scanner for AI Agent Skills & MCP Servers	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sanna.dev ↗	69 match 2 shared topics	Sanna – Trust Infrastructure for AI Agents	en	information-and-network-security	robots llmsaihumans	emailphone	none
useverity.io ↗	69 match 2 shared topics	Verity — Make AI Agent Actions Safe	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
0eroshot.com ↗	68 match 2 shared topics	ZeroShot — Offensive Security Testing for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
abscore.app ↗	68 match 2 shared topics	ABS CORE — Runtime Governance for AI Agents	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.