OSIR registrar for FOSSBilling
Register, transfer, renew and manage domains through OSIR from FOSSBilling.

What it does
- Registration, transfer-in and renewal, including renewals paid after the registry has already auto-renewed
- Nameservers, contacts, transfer lock, WHOIS privacy and transfer (EPP) codes
- Expiry synchronisation through FOSSBilling's cron
- DNS in the client area: your customers manage the records of their own domains — A, AAAA, CNAME, MX, TXT, SRV, CAA, NS, PTR, NAPTR. No extra product to sell; the zone apex stays with OSIR
- Import from OSIR: create your TLDs from OSIR's catalogue with your markup, and turn domains you already hold at OSIR into FOSSBilling orders without registering or charging anything
- Premium names are refused by default, and can optionally be allowed within a cost limit you set
osir-doctor, a read-only diagnostics command
Money safety
A lost connection, a retried cron run or a double click never registers or renews twice: every paid call carries an idempotency key bound to the order. An optional cost limit refuses anything above the price you choose, and a price that cannot be confirmed is never charged.
Requirements
- FOSSBilling 0.8.7 or newer
- PHP 8.3, 8.4 or 8.5 with
intl - An OSIR account and a live API key. OSIR has no test environment, so FOSSBilling's Test Mode is refused rather than silently sending live, paid operations.
Installation
- Download
osir-fossbilling-registrar-1.3.1.zipandSHA256SUMSfrom the latest release and verify the checksum. - Extract it into your FOSSBilling root. It adds only
library/Registrar/Adapter/Osir*andmodules/Osir. - In the admin panel, open Domain Management → Registrars, find Osir and click Install.
- Add your API key, then activate the OSIR domains module under Extensions for the import and the client DNS page.
Full documentation, configuration and security notes: https://github.com/Osir-Inc/fossbilling-osir#readme
Optional theme
The same release includes osir-fossbilling-theme-1.3.1.zip, a client-area theme in OSIR's design with a
domain search home page. It is independent of the registrar and optional.
Licence
Apache License 2.0.