diff --git a/src/caas.js b/src/caas.js
new file mode 100644
index 000000000..318755dc8
--- /dev/null
+++ b/src/caas.js
@@ -0,0 +1,74 @@
+/* jslint node:true */
+
+'use strict';
+
+exports = module.exports = {
+    addSubdomain: addSubdomain,
+    delSubdomain: delSubdomain,
+    getChangeStatus: getChangeStatus
+};
+
+var assert = require('assert'),
+    config = require('./config.js'),
+    debug = require('debug')('box:caas'),
+    SubdomainError = require('./subdomainerror.js'),
+    superagent = require('superagent'),
+    util = require('util');
+
+function addSubdomain(zoneName, subdomain, type, value, callback) {
+    assert.strictEqual(typeof zoneName, 'string');
+    assert.strictEqual(typeof subdomain, 'string');
+    assert.strictEqual(typeof type, 'string');
+    assert.strictEqual(typeof value, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    debug('addSubdomain: ' + subdomain + ' for domain ' + zoneName + ' with value ' + value);
+
+    superagent
+        .post(config.apiServerOrigin() + '/api/v1/domains/' + config.appFqdn(subdomain))
+        .query({ token: config.token() })
+        .end(function (error, result) {
+            if (error) return callback(error);
+            if (result.status !== 201) return callback(new SubdomainError(SubdomainError.EXTERNAL_ERROR, util.format('%s %j', result.status, result.body)));
+
+            return callback(null, result.body.changeId);
+        });
+}
+
+function delSubdomain(zoneName, subdomain, type, value, callback) {
+    assert.strictEqual(typeof zoneName, 'string');
+    assert.strictEqual(typeof subdomain, 'string');
+    assert.strictEqual(typeof type, 'string');
+    assert.strictEqual(typeof value, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    debug('delSubdomain: %s for domain %s.', subdomain, zoneName);
+
+    superagent
+        .del(config.apiServerOrigin() + '/api/v1/domains/' + config.appFqdn(subdomain))
+        .query({ token: config.token() })
+        .end(function (error, result) {
+            if (error) return callback(error);
+            if (result.status !== 204) return callback(new SubdomainError(SubdomainError.EXTERNAL_ERROR, util.format('%s %j', result.status, result.body)));
+
+            return callback(null);
+        });
+}
+
+function getChangeStatus(changeId, callback) {
+    assert.strictEqual(typeof changeId, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    if (changeId === '') return callback(null, 'INSYNC');
+
+    superagent
+        .get(config.apiServerOrigin() + '/api/v1/domains/' + config.fqdn() + '/status/' + changeId)
+        .query({ token: config.token() })
+        .end(function (error, result) {
+            if (error) return callback(error);
+            if (result.status !== 200) return callback(new SubdomainError(SubdomainError.EXTERNAL_ERROR, util.format('%s %j', result.status, result.body)));
+
+            return callback(null, result.body.status);
+        });
+
+}