Case Study: Slimstock achieves continuous, cost-effective security across 500 API endpoints with APIsec

Slimstock From Monolithic to API-based Architecture

Slimstock, a Colorado‑based inventory optimization software company transitioning from a monolithic on‑premise product to an API‑focused SaaS, needed to secure hundreds of customer‑facing APIs without building an in‑house API security team. Working with a third‑party engineering firm and facing rising costs and limited coverage from annual manual penetration tests, Slimstock turned to APIsec for automated API risk discovery and continuous API security testing.

APIsec was deployed into Slimstock’s staging environment without disrupting the CI/CD workflow, ran an initial risk discovery scan in 24 hours, and onboarded fully within a week. APIsec now continuously tests and protects over 500 API endpoints (including business logic checks), shifted testing from once‑a‑year to every build, and reduced costs previously in the $20,000–$50,000 annual range to a fraction while closing Slimstock’s window of vulnerability.

Slimstock

Daan Majoor

Chief Technology Officer