
AASA alternatives
Tools that do what AASA does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from AASA.
Read 2026-10-27 · AASA itself: From $1/mo
With a free plan or free to use: Brave, Lumo by Proton, MrProbe by Sniffr.ai.
- #1

Redline AISecurity
Red teams AI agents before release and blocks prompt injection and tool abuse in production.
Costs moreAlso: Agents
EmergingActiveFrom $20/mo - #2

SentinelOne Purple AISecurity
Detects and responds to endpoint threats using behavioral AI and autonomous remediation across devices and identities.
Also: Analytics, AgentsMore widely used
453kFrom $179.99/user/yr2013 - #3

ArcjetSecurityMCP · sign-in
Checks each action an AI agent takes against prompt injection, PII, bot and policy rules before the call runs, and logs the decision.
Costs more
738ActiveFrom $25/mo - #4

BraveSecurity
Browser that blocks ads and trackers, encrypts connections with built-in VPN, and includes private search.
Free planCosts more
1.4MActiveFrom $3/mo2015 - #5

ZeroLeaksSecurityMCP · sign-in
Automatically red teams AI agents and prompts to find prompt injection, tool hijacking, and data leakage vulnerabilities.
Costs moreAlso: Agents
34ActiveFrom $79/mo - #6

Lumo by ProtonSecurity
Provides encrypted email, calendar, cloud storage, password manager and VPN under one Proton account, with the Lumo chat assistant as an add-on.
Free planAlso: Chat assistant
3.4MActiveFree plan2014 - #7

FirefoxSecurity
Blocks trackers by default in a web browser and moves bookmarks, passwords and history between devices.
More widely used
1.2MActive2002 - #8

Prompt SecuritySecurityMCP · sign-in
Monitors and secures AI agent deployments, detects prompt injection attacks, and flags sensitive data in LLM usage.
Also: Monitoring, AgentsMore widely used
2.2kActive2023 - #9

MrProbe by Sniffr.aiSecurity
Red-teams AI agents with adversarial probes and runs 20-dimension functional evaluations, reporting proven, suspected or defended findings.
Free planCosts more
27 linking domainsActiveFrom $220/mo - #10

Autonomous pentesting, continuous monitoringSecurityMCP · sign-in
Scans web apps, networks and cloud for vulnerabilities, then exploits them where supported to prove risk, with reports and an autonomous pentest agent.
Costs moreAlso: Monitoring
107kActiveFrom $96/mo2017
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How this list is made: the words AASA is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.
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