From f7e7e885a9209e09553c1b42b0e4edead2474b0c Mon Sep 17 00:00:00 2001
From: LLeny <leny+github@lesse.co>
Date: Fri, 7 Sep 2018 20:52:10 +0800
Subject: [PATCH] Usage

---
 dnsapi/README.md | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/dnsapi/README.md b/dnsapi/README.md
index 891417f..48b0489 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -990,6 +990,27 @@ Now you can issue a certificate.
 acme.sh --issue --dns dns_gdnsdk -d example.com -d *.example.com
 ```
 
+## 53. Use Namecheap
+
+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 AP 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 (e.g. 145.34.23.54) 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.
+
+Now you can issue a certificate.
+
+```sh
+acme.sh --issue --dns dns_namecheap -d example.com -d *.example.com
+```
+
 # Use custom API
 
 If your API is not supported yet, you can write your own DNS API.