You will need your namecheap username, API KEY (https://www.namecheap.com/support/api/intro.aspx) and your external IP address (or an URL to get it), this IP will need to be whitelisted at Namecheap.
Due to Namecheap's API limitation all the records of your domain will be read and re applied, make sure to have a backup of your records you could apply if any issue would arise.
```sh
export NAMECHEAP_USERNAME="..."
export NAMECHEAP_API_KEY="..."
export NAMECHEAP_SOURCEIP="..."
```
NAMECHEAP_SOURCEIP can either be an IP address or an URL to provide it (e.g. https://ifconfig.co/ip).
The username and password will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
# Requires Namecheap API key set in NAMECHEAP_API_KEY, NAMECHEAP_SOURCEIP and NAMECHEAP_USERNAME set as environment variable
# Due to Namecheap's API limitation all the records of your domain will be read and re applied, make sure to have a backup of your records you could apply if any issue would arise.