Miter REST API
Miter exposes a REST API used to build custom integrations between the Miter HCM platform and construction ERPs, accounting, and workforce systems — syncing projects, cost codes, accounts, employees, time, and pay. The API is gated behind authentication (api.miter.com returns 401 without credentials); Miter does not publish a public developer portal or OpenAPI definition, directing partners to build against the REST API via their account team.