StackOne

Universal API layer normalizing HRIS, ATS, LMS, and CRM platforms into one data model — with zero-data-storage webhooks and MCP-based tool-calling for AI agents. Scalevium provided engineering support within the larger StackOne product — integration architecture, webhook flows, and backend implementation — not sole authorship of the platform.

1. 01

   Universal API Normalization

   Universal API layer normalizing HRIS/ATS/LMS/CRM platforms into one data model — a single integration surface across heterogeneous enterprise systems.

2. 02

   Zero-Data-Storage Webhooks

   Webhook architecture designed for PII compliance with zero persistent storage of sensitive payloads — data passes through, it is not retained.

3. 03

   MCP Tool-Calling

   Supports MCP-based tool-calling for autonomous AI agents — external AI systems can invoke integrations through a standardized protocol.