StackOne Information

StackOne is the Tool Gateway for successful AI rollouts across teams and systems. It manages the tool layer between AI agents and business applications, giving organizations shared, governed and secured access to business systems without every team building and maintaining separate integrations. StackOne provides managed connectors for business applications and pre-built actions via an MCP gateway, A2A, AI SDKs and APIs, plus an AI Connector Builder to extend connectors or connect custom and legacy systems. Tool discovery and token optimization surface only relevant tools, keeping context lean. Managed authentication and granular permissions govern access for every user, agent and action; prompt-injection defense and reliable, secure execution protect against unsafe or malicious tool responses; and end-to-end observability captures tool calls, actions, failures and audit trails. StackOne has raised $24 million and is backed by GV (Google Ventures) and Workday Ventures.