Introduction
Welcome to the Untether Developer Docs
Get started with the Untether Labs API
Using the API#
Build robust applications using the Untether Labs API.
Handle large response sets with pagination.
Respond to common and unexpected errors in your API requests.
A comprehensive list of all expected API errors and their meanings.
Learn how to create historical corrections for signed-off pay periods.
Guides#
Familiarize yourself with common tasks and workflows.
API Versioning#
Breaking changes are introduced as new versioned endpoints. Before any endpoint is sunset, we'll publish a deprecation notice and reach out to affected customers with a migration timeline.
Every response includes an X-API-Version header identifying the build that served it, useful for correlating issues against your own logs:
X-API-Version: 2026-05-14.a3f2c1dYou can also query the current deployment at GET /version (unauthenticated):
{
"version": "2026-05-14.a3f2c1d",
"deployedAt": "2026-05-14T18:23:47Z"
}version matches the header; deployedAt is an ISO 8601 UTC timestamp of when the build was deployed.
Need Help?#
Have questions or need assistance? We're here to help!