Get the collection
The StackOne Platform API collection covers account management, connect sessions, actions, and more — auto-synced daily from the live OpenAPI spec.{{apiKey}} as the username. Most endpoints also require the x-account-id header, set via {{accountId}}.
Set up your environment
1
Create an environment
In Postman, click the Environments icon in the left sidebar, then + to create a new environment.
2
Add your credentials
3
Select the environment
Select your environment from the dropdown in the top-right corner before sending any request.
Explore the API
The collection is organised into folders by resource:Also in the public workspace
StackOne Legacy APIs
Unified vertical APIs (HRIS, ATS, CRM, etc.)
StackOne MCP
MCP server endpoints