# reg.ly reseller API > Register, renew, transfer and manage .ly domains from your own system. REST over HTTPS, form-encoded requests, JSON responses. Authentication: a username header (your reseller account email) and a token header, base64 of an HMAC-SHA256 of your API key keyed by your email and the current UTC hour. Test with .ote.ly names on the same endpoint without spending credit. No request limit. Endpoint: https://api.reg.ly ## Docs - [API reference (HTML)](https://reg.ly/ly-domain-reseller/api/): authentication, every call, models, testing, changelog - [API reference (Markdown)](https://reg.ly/ly-domain-reseller/api/api.md): the same reference as plain Markdown - [OpenAPI 3.1 contract](https://reg.ly/ly-domain-reseller/api/openapi.yaml): machine-readable paths, parameters and models ## Program - [.LY domain reseller program](https://reg.ly/ly-domain-reseller/): tiers, pricing, modules, how to join - [Partners](https://reg.ly/partners/): the reseller API and the affiliate program