Casco
Autonomous security testing for web apps, APIs, cloud, and AI systems
Why it ranks #239
Casco, an AI pentester from YC Sp25, ranks #239 of 999 AI agents and #5 of 12 in Pentester, with a score of 3.5 of 10. Data as of .
The score adds four parts, each 0 to 10, by weight. Every point comes from public evidence. How scoring works ·
- Proof 2 × 30% 0.6
- Scale 4 × 30% 1.2
- Momentum 3 × 25% 0.8
- Autonomy 6 × 15% 0.9
- = 3.5
- 2
Proof
Do customers use it? 30% of the score
Claims a customer count.
- +2A customer count
“Casco already secures AI systems deployed in 60% of Fortune 500 companies.”
Launch YC post · 22 May 2025 · 2 claims
Not found: revenue or growth (+4), named customers (+3), a customer result (+2), work done at scale (+2)
- +2
- 4
Scale
Is there a real company behind it? 30% of the score
10 people.
- +410 people on its YC page10 to 19 people
Not found: funding round in its news (+3)
- +4
- 3
Momentum
Is it shipping and growing now? 25% of the score
Shows hiring.
- +3
Not found: launch YC post in the last 6 months (+3), new traction claim in the last 6 months (+2), funding news in the last year (+2), a batch in the last year (it is YC Spring 2025) (+1)
- 6
Autonomy
How much of the job does it do on its own? 15% of the score
Supervised agent: takes actions in other systems; a person approves key steps.
- +6Level 2 of 4: Supervised agentTakes actions in other systems; a person approves key steps.
What the model read
- Acts in other systems: 51% likely
- Finishes whole tasks: 33% likely
- Calls itself an agent: 97% likely
Level 2: Takes actions in other systems; a person approves key steps.
- +6
About Casco
Casco performs autonomous security testing for your web apps, APIs, infrastructure, and AI systems. Human supervision optionally available. Use Casco for year-round security and get a penetration test report for your SOC2 and ISO27001 compliance certifications.
Trusted by 100+ companies from enterprises to fast-moving startups, such as Gusto, CrewAI, Novig, and Accrual.
Read more
Hack yourself at: https://casco.com
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We already secure software deployed in 60% of Fortune 500 companies and are default alive. [1]
[1] http://www.paulgraham.com/aord.html
Founders
- Rene BrandelFounder/CEO
- Ian SaultzFounder/CTO
Launches and news
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