diff --git a/.gitignore b/.gitignore
index 407a14c..1bb61b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
+.env
 *secret*
 node_modules
diff --git a/README.md b/README.md
index bdc435d..3ecf13b 100644
--- a/README.md
+++ b/README.md
@@ -13,12 +13,12 @@ npm install --save acme-dns-01-vultr@3.x
 
 # Usage
 
-First you create an instance with your credentials:
+First you create an instance with your API token:
 
 ```js
 var dns01 = require('acme-dns-01-vultr').create({
 	baseUrl: 'https://api.vultr.com/v1/dns', // default
-	apiKey: 'xxxx'
+	token: 'xxxx'
 });
 ```
 
@@ -52,18 +52,18 @@ See the [ACME.js](https://git.rootprojects.org/root/acme-v2.js) for more details
 
 ```js
 dns01
-  .set({
-    identifier: { value: 'foo.example.com' },
-    wildcard: false,
-    dnsHost: '_acme-challenge.foo.example.com',
-    dnsAuthorization: 'xxx_secret_xxx'
-  })
-  .then(function () {
-    console.log("TXT record set");
-  })
-  .catch(function () {
-    console.log("Failed to set TXT record");
-  });
+	.set({
+		identifier: { value: 'foo.example.com' },
+		wildcard: false,
+		dnsHost: '_acme-challenge.foo.example.com',
+		dnsAuthorization: 'xxx_secret_xxx'
+	})
+	.then(function() {
+		console.log('TXT record set');
+	})
+	.catch(function() {
+		console.log('Failed to set TXT record');
+	});
 ```
 
 See [acme-dns-01-test](https://git.rootprojects.org/root/acme-dns-01-test.js)
diff --git a/example.env b/example.env
new file mode 100644
index 0000000..48ceb39
--- /dev/null
+++ b/example.env
@@ -0,0 +1,2 @@
+ZONE=example.co.uk
+TOKEN=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
diff --git a/lib/index.js b/lib/index.js
index 3dbe6ca..2c84e13 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -9,7 +9,9 @@ var defaults = {
 
 module.exports.create = function(config) {
 	var baseUrl = (config.baseUrl || defaults.baseUrl).replace(/\/$/, '');
-	var apiKey = config.apiKey;
+	// In all of the other modules the API token is called token,
+	// but here we support both.
+	var apiKey = config.token || config.apiKey;
 
 	function api(method, path, form) {
 		return request({
diff --git a/package-lock.json b/package-lock.json
index 529ab68..09b0fad 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
 	"name": "acme-dns-01-vultr",
-	"version": "3.0.0",
+	"version": "3.0.2",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {
@@ -23,6 +23,12 @@
 			"requires": {
 				"acme-challenge-test": "^3.2.0"
 			}
+		},
+		"dotenv": {
+			"version": "8.0.0",
+			"resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.0.0.tgz",
+			"integrity": "sha512-30xVGqjLjiUOArT4+M5q9sYdvuR4riM6yK9wMcas9Vbp6zZa+ocC9dp6QoftuhTPhFAiLK/0C5Ni2nou/Bk8lg==",
+			"dev": true
 		}
 	}
 }
diff --git a/package.json b/package.json
index 1431d08..839d8ce 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "acme-dns-01-vultr",
-	"version": "3.0.1",
+	"version": "3.0.2",
 	"description": "Vultr DNS for Let's Encrypt / ACME dns-01 challenges with ACME.js and Greenlock.js",
 	"main": "index.js",
 	"scripts": {
@@ -24,6 +24,7 @@
 		"@root/request": "^1.3.11"
 	},
 	"devDependencies": {
-		"acme-dns-01-test": "^3.2.1"
+		"acme-dns-01-test": "^3.2.1",
+		"dotenv": "^8.0.0"
 	}
 }
diff --git a/test.js b/test.js
old mode 100644
new mode 100755
index ca6de26..d8b9412
--- a/test.js
+++ b/test.js
@@ -1,13 +1,14 @@
 #!/usr/bin/env node
 'use strict';
 
-// https://git.rootprojects.org/root/acme-dns-01-test.js
-var tester = require('acme-dns-01-test');
+// See https://git.coolaj86.com/coolaj86/acme-challenge-test.js
+var tester = require('acme-challenge-test');
+require('dotenv').config();
 
 // Usage: node ./test.js example.com xxxxxxxxx
-var zone = process.argv[2];
+var zone = process.argv[2] || process.env.ZONE;
 var challenger = require('./index.js').create({
-	apiKey: process.argv[3]
+	token: process.argv[3] || process.env.TOKEN
 });
 
 // The dry-run tests can pass on, literally, 'example.com'
@@ -18,7 +19,6 @@ tester
 		console.info('PASS', zone);
 	})
 	.catch(function(e) {
-		console.info('FAIL', zone);
 		console.error(e.message);
 		console.error(e.stack);
 	});