Prompt Armor
Contact SalesAssess and monitor third-party AI risk for enterprise security teams
By Tanmay Verma, Founder · Last verified 30 May 2026
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Added 6d ago
76/100Safe BetAssess and monitor third-party AI risk for enterprise security teams
By Tanmay Verma, Founder · Last verified 30 May 2026
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PromptArmor fills a narrow but critical niche: third-party AI risk for large enterprises. If you're a Fortune 500 vendor security team drowning in AI vendor assessments, this is worth a demo. But smaller orgs or those without extensive vendor ecosystems may find it overkill.
Last verified: May 2026
PromptArmor is purpose-built for enterprise teams drowning in third-party AI risk. Its threat intelligence on indirect prompt injection—highlighted by real research hitting HackerNews—is a standout. The platform maps directly to OWASP LLM Top 10, NIST AI RMF, and MITRE Atlas, which security teams will appreciate. However, the lack of pricing transparency and no mention of self-serve onboarding suggests it's high-touch and expensive. For TPRM pros in large organizations, PromptArmor is a natural fit. Smaller teams should look at lighter alternatives like Protect AI or manually tracking AI vendors. A key caveat: the platform doesn't seem to offer automated scanning—it relies on vendor-supplied data or manual discovery. That could be a bottleneck for scaling. Overall, if you're charged with governing dozens of AI-connected vendors and need a single pane of glass, PromptArmor is compelling. If you need proactive red-teaming or real-time attack blocking, you'll need complementary tools.
Skip Prompt Armor if Skip PromptArmor if you need runtime AI security, a free tier, or on-premises deployment.
Research reveals unpatched Ollama flaws enabling phishing overlays and data exfiltration.
Prompt Armor reports Microsoft Copilot Cowork can exfiltrate files via prompt injection.
How likely is Prompt Armor to still be operational in 12 months? Based on 6 signals including funding, development activity, and platform risk.
PromptArmor is an AI risk platform that helps enterprises assess and monitor third-party AI vendors. Used by Fortune 50 to Am Law 100 companies, it protects over $2 trillion in market cap. The platform covers TPRM, InfoSec, GRC, Privacy, and Legal teams, enabling them to identify, assess, monitor, map, and assure AI assets across their ecosystem.
Tell us what you want to build — we'll match the AI tools that fit your goal, budget & existing stack.
Concrete scenarios for the personas Prompt Armor actually fits — and what changes day-one when you adopt it.
Evaluating a new chatbot vendor during procurement
Outcome: PromptArmor automatically identifies the vendor's AI assets, scores risks across 26 vectors (e.g., data handling, prompt injection), and generates a compliance report for the security review committee—cutting evaluation time from weeks to days.
Monitoring existing AI tools (e.g., legal research assistants) for changes
Outcome: PromptArmor continuously monitors vendor AI scope changes and sends an alert when a tool expands its permissions or adds new LLM integrations, enabling the team to reassess risk before a breach occurs.
Pricing is not publicly disclosed, suggesting enterprise-only contracts with no self-service tier. No API, plugin, or CLI access mentioned, limiting automation and customization. The platform focuses on third-party risk rather than protecting internal AI models or offering runtime defenses against prompt injection. Setup likely requires a sales engagement and may involve onboarding time for TPRM integration.
The company stage and team size where Prompt Armor's pricing actually pencils out — and where peers do it cheaper.
PromptArmor's pricing is custom only—no published tiers—so it likely fits enterprises with budgets for dedicated TPRM tools. Compared to broader governance platforms like Vanta or OneTrust (which have per-asset or per-user pricing starting around $10k/year), PromptArmor may be comparable but with deeper AI-specific risk coverage. Smaller teams may find it cost-prohibitive.
How long it actually takes to get something useful out of Prompt Armor — broken out by persona, not the marketing-page minute.
For a TPRM team with defined processes, initial setup (vendor inventory import, risk template configuration) takes 1-2 weeks, including a kickoff call with PromptArmor's team. For a quick evaluation of a single vendor, first results can be available within days after submitting a demo request.
Pricing, brand, ownership, or deprecation changes worth knowing before you commit. Most-recent first.
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