Runtime guardrails and AI firewalls · #10 by signal score
Protect AI
AI and ML security company behind model scanning, runtime LLM protection, and the open-source LLM Guard toolkit. Acquired by Palo Alto Networks in 2025; protectai.com now redirects to Prisma AIRS, and the LLM Guard repository is archived.
Acquired by Palo Alto Networks, announced 2025-04-28, closed 2025-07-22 ($634.5M, per SEC filing). Now sold as Prisma AIRS.
30Signal score / 100
- Capital
- 15.4/35
- Product
- 15/25
- Standards
- 0/20(not yet assessed)
- Momentum
- 0/20
Identity primitives
| Agent as a first-class identity | Not checked |
| On-behalf-of token exchange | Not checked |
| Cross App Access (ID-JAG) | Not checked |
| Asynchronous human approval (CIBA) | Not checked |
| MCP authorization conformance | Not checked |
| Fine-grained authorization | Not checked |
| Short-lived, secretless credentials | Not checked |
| Token vault | Not checked |
| Kill switch | Not checked |
| Per-action audit chain | Not checked |
Company
HQ: US
Funding: $108.5M disclosed, latest Series B
Product: Protect AI (LLM Guard)
Open source
3,208 stars · 24 contributors
Last push 2026-07-08 · archived
Sources
- Palo Alto Networks Prisma AIRS (vendor, accessed 2026-09-23)
- Palo Alto Networks completes acquisition of Protect AI (press-release, accessed 2026-09-23)
- Protect AI raises $60 million in Series B funding (trade-press, accessed 2026-09-23)
- Palo Alto Networks, Inc. Form 10-K for the fiscal year ended July 31, 2025 (sec, accessed 2026-09-23)
Last verified 2026-09-23.