diff --git a/lib/api-extensions.js b/lib/api-extensions.js
new file mode 100644
index 00000000..5c04d73f
--- /dev/null
+++ b/lib/api-extensions.js
@@ -0,0 +1,22 @@
+'use strict';
+
+const ApiGroup = require('./api-group');
+const CustomResourceDefiniton = require('./custom-resource-definition');
+
+class ApiExtensions extends ApiGroup {
+  constructor(options) {
+    options = Object.assign({}, options, {
+      path: 'apis/apiextensions.k8s.io',
+      version: options.version || 'v1beta1',
+      groupResources: [
+        'customresourcedefinitions'
+      ],
+      namespaceResources: [
+        { name: 'customresourcedefinitions', Constructor: CustomResourceDefiniton }
+      ]
+    });
+    super(options);
+  }
+}
+
+module.exports = ApiExtensions;
diff --git a/lib/api.js b/lib/api.js
index 393c1b5c..d203d912 100644
--- a/lib/api.js
+++ b/lib/api.js
@@ -5,12 +5,14 @@ const Extensions = require('./extensions');
 const Apps = require('./apps');
 const Batch = require('./batch');
 const Rbac = require('./rbac');
+const ApiExtensions = require('./api-extensions');
 
 const groups = {
   'extensions': Extensions,
   'apps': Apps,
   'batch': Batch,
-  'rbac.authorization.k8s.io': Rbac
+  'rbac.authorization.k8s.io': Rbac,
+  'apiextensions.k8s.io': ApiExtensions
 };
 
 class Api {
@@ -22,6 +24,7 @@ class Api {
    * @param {object} options.apps - Optional default Apps client
    * @param {object} options.batch - Optional default Batch client
    * @param {object} options.rbac - Optional default RBAC client
+   * @param {object} options.apiExtensions - Optional default ApiExtensions client
    */
   constructor(options) {
     this.options = options;
@@ -30,6 +33,7 @@ class Api {
     this.apps = options.apps || new Apps(options);
     this.batch = options.batch || new Batch(options);
     this.rbac = options.rbac || new Rbac(options);
+    this.apiExtensions = options.apiExtensions || new ApiExtensions(options);
   }
 
   /**
diff --git a/lib/common.js b/lib/common.js
index 98dc19fb..a9abc0b9 100644
--- a/lib/common.js
+++ b/lib/common.js
@@ -10,6 +10,7 @@ module.exports.aliasResources = function (resourceObject) {
     componentstatuses: ['cs'],
     configmaps: ['cm'],
     cronjobs: [],
+    customresourcedefinitions: ['crd'],
     daemonsets: ['ds'],
     deployments: ['deploy'],
     events: ['ev'],
@@ -36,6 +37,7 @@ module.exports.aliasResources = function (resourceObject) {
     serviceaccounts: [],
     services: ['svc'],
     statefulsets: [],
+    // Deprecated name of customresourcedefinition in kubernetes 1.7
     thirdpartyresources: []
   };
 
diff --git a/lib/custom-resource-definition.js b/lib/custom-resource-definition.js
new file mode 100644
index 00000000..449cfa1d
--- /dev/null
+++ b/lib/custom-resource-definition.js
@@ -0,0 +1,27 @@
+'use strict';
+
+const ApiGroup = require('./api-group');
+
+class CustomResourceDefinition extends ApiGroup {
+  constructor(options) {
+    options = Object.assign({}, options, {
+      path: `apis/${ options.group }`,
+      version: options.version || 'v1',
+      groupResources: [],
+      namespaceResources: []
+    });
+    super(options);
+
+    if (options.resources) {
+      options.resources.forEach(resource => this.addResource(resource));
+    }
+  }
+
+  addResource(resourceName) {
+    this.namespace.addResource(resourceName);
+    super.addResource(resourceName);
+    return this;
+  }
+}
+
+module.exports = CustomResourceDefinition;
diff --git a/lib/index.js b/lib/index.js
index c315e8b2..4afb3d79 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -5,6 +5,7 @@ module.exports.Api = require('./api');
 module.exports.Core = core;
 module.exports.Extensions = require('./extensions');
 module.exports.ThirdPartyResources = require('./third-party-resources');
+module.exports.CustomResourceDefinitions = require('./custom-resource-definitions');
 module.exports.config = require('./config');
 module.exports.Apps = require('./apps');
 module.exports.Batch = require('./batch');
diff --git a/package-lock.json b/package-lock.json
index 3a1c32a4..1184802c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -768,6 +768,15 @@
       "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
       "dev": true
     },
+    "define-properties": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.2.tgz",
+      "integrity": "sha1-g6c/L+pWmJj7c3GTyPhzyvbUXJQ=",
+      "requires": {
+        "foreach": "2.0.5",
+        "object-keys": "1.0.11"
+      }
+    },
     "del": {
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/del/-/del-2.2.2.tgz",
@@ -886,6 +895,28 @@
         "is-arrayish": "0.2.1"
       }
     },
+    "es-abstract": {
+      "version": "1.8.2",
+      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.8.2.tgz",
+      "integrity": "sha512-dvhwFL3yjQxNNsOWx6exMlaDrRHCRGMQlnx5lsXDCZ/J7G/frgIIl94zhZSp/galVAYp7VzPi1OrAHta89/yGQ==",
+      "requires": {
+        "es-to-primitive": "1.1.1",
+        "function-bind": "1.1.1",
+        "has": "1.0.1",
+        "is-callable": "1.1.3",
+        "is-regex": "1.0.4"
+      }
+    },
+    "es-to-primitive": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.1.1.tgz",
+      "integrity": "sha1-RTVSSKiJeQNLZ5Lhm7gfK3l13Q0=",
+      "requires": {
+        "is-callable": "1.1.3",
+        "is-date-object": "1.0.1",
+        "is-symbol": "1.0.1"
+      }
+    },
     "es5-ext": {
       "version": "0.10.23",
       "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.23.tgz",
@@ -1226,6 +1257,11 @@
       "integrity": "sha1-gBWtFJwQEaEWzbieukzBHZA5rdg=",
       "dev": true
     },
+    "foreach": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/foreach/-/foreach-2.0.5.tgz",
+      "integrity": "sha1-C+4AUBiusmDQo6865ljdATbsG5k="
+    },
     "forever-agent": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
@@ -1265,6 +1301,11 @@
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
       "dev": true
     },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
     "generate-function": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/generate-function/-/generate-function-2.0.0.tgz",
@@ -1467,6 +1508,14 @@
         "har-schema": "1.0.5"
       }
     },
+    "has": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.1.tgz",
+      "integrity": "sha1-hGFzP1OLCDfJNh45qauelwTcLyg=",
+      "requires": {
+        "function-bind": "1.1.1"
+      }
+    },
     "has-ansi": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
@@ -1649,6 +1698,16 @@
         "builtin-modules": "1.1.1"
       }
     },
+    "is-callable": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.1.3.tgz",
+      "integrity": "sha1-hut1OSgF3cM69xySoO7fdO52BLI="
+    },
+    "is-date-object": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.0.1.tgz",
+      "integrity": "sha1-mqIOtq7rv/d/vTPnTKAbM1gdOhY="
+    },
     "is-finite": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/is-finite/-/is-finite-1.0.2.tgz",
@@ -1720,6 +1779,14 @@
       "integrity": "sha1-V/4cTkhHTt1lsJkR8msc1Ald2oQ=",
       "dev": true
     },
+    "is-regex": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.0.4.tgz",
+      "integrity": "sha1-VRdIm1RwkbCTDglWVM7SXul+lJE=",
+      "requires": {
+        "has": "1.0.1"
+      }
+    },
     "is-resolvable": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-resolvable/-/is-resolvable-1.0.0.tgz",
@@ -1741,6 +1808,11 @@
       "integrity": "sha1-ilkRfZMt4d4A8kX83TnOQ/HpOaY=",
       "dev": true
     },
+    "is-symbol": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-symbol/-/is-symbol-1.0.1.tgz",
+      "integrity": "sha1-PMWfAAJRlLarLjjbrmaJJWtmBXI="
+    },
     "is-text-path": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/is-text-path/-/is-text-path-1.0.1.tgz",
@@ -2437,6 +2509,20 @@
       "integrity": "sha1-qXiFtVPldetACevAm92psc0hl5o=",
       "dev": true
     },
+    "object-keys": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.0.11.tgz",
+      "integrity": "sha1-xUYBd4rVYPEULODgG8yotW0TQm0="
+    },
+    "object.getownpropertydescriptors": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.0.3.tgz",
+      "integrity": "sha1-h1jIRvW0B62rDyNuCYbxSwUcqhY=",
+      "requires": {
+        "define-properties": "1.1.2",
+        "es-abstract": "1.8.2"
+      }
+    },
     "once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -3469,6 +3555,15 @@
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
       "dev": true
     },
+    "util.promisify": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/util.promisify/-/util.promisify-1.0.0.tgz",
+      "integrity": "sha512-i+6qA2MPhvoKLuxnJNpXAGhg7HphQOSUq2LKMZD0m15EiskXUkMvKdF4Uui0WYeCUGea+o2cw/ZuwehtfsrNkA==",
+      "requires": {
+        "define-properties": "1.1.2",
+        "object.getownpropertydescriptors": "2.0.3"
+      }
+    },
     "uuid": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
diff --git a/test/api-extensions.test.js b/test/api-extensions.test.js
new file mode 100644
index 00000000..1bfb9f29
--- /dev/null
+++ b/test/api-extensions.test.js
@@ -0,0 +1,58 @@
+'use strict';
+
+const assume = require('assume');
+const async = require('async');
+const nock = require('nock');
+
+const common = require('./common');
+const beforeTesting = common.beforeTesting;
+
+const testApiExtensions = {
+  apiVersion: 'apiextensions.k8s.io/v1beta1',
+  kind: 'CustomResourceDefinition',
+  metadata: {
+    name: 'test.example.com'
+  },
+  spec: {
+    group: 'example.com',
+    version: 'v1',
+    scope: 'Namespaced',
+    names: {
+      plural: 'tests',
+      singular: 'test',
+      kind: 'Test',
+      shortNames: [
+        't'
+      ]
+    }
+  }
+};
+
+describe('lib.apiextensions', () => {
+  describe('.ApiExtensions', () => {
+    const testCustomResourceName = testApiExtensions.metadata.name;
+
+    beforeTesting('unit', () => {
+      nock(common.apiExtensions.url)
+        .post(`${ common.apiExtensions.path }/customresourcedefinitions`)
+        .reply(201, testApiExtensions)
+        .get(`${ common.apiExtensions.path }/customresourcedefinitions/${ testCustomResourceName }`)
+        .reply(200, testApiExtensions);
+    });
+
+    // NOTE: Running only unit tests. Setting up CRD is more involved, and it
+    // makes it cumbersome to run the other integration tests. We need
+    // improvements to our integration test harness to make this work well.
+    common.only('unit', 'can POST and GET', done => {
+      async.series([
+        next => common.apiExtensions.customresourcedefinitions.post({ body: testApiExtensions }, next),
+        next => common.apiExtensions.customresourcedefinitions.get(testCustomResourceName, next)
+      ], (err, results) => {
+        assume(err).is.falsy();
+        const getResult = results[1];
+        assume(getResult.metadata.name).is.equal(testCustomResourceName);
+        done();
+      });
+    });
+  });
+});
diff --git a/test/common.js b/test/common.js
index fb6f3780..2e2b998d 100644
--- a/test/common.js
+++ b/test/common.js
@@ -8,12 +8,14 @@ const path = require('path');
 const yaml = require('js-yaml');
 
 const Api = require('../lib/api');
+const ApiExtensions = require('../lib/api-extensions');
 const Apps = require('../lib/apps');
 const Batch = require('../lib/batch');
 const Core = require('../lib/core');
 const Extensions = require('../lib/extensions');
 const Rbac = require('../lib/rbac');
 const ThirdPartyResources = require('../lib/third-party-resources');
+const CustomResourceDefinition = require('../lib/custom-resource-definition');
 
 const defaultName = process.env.NAMESPACE || 'integration-tests';
 const defaultTimeout = process.env.TIMEOUT || 30000;
@@ -68,6 +70,7 @@ function newName() {
 function injectApis(options) {
   const apis = {
     api: { Constructor: Core },
+    apiExtensions: { Constructor: ApiExtensions },
     apiGroup: { Constructor: Api },
     apps: { Constructor: Apps },
     batch: { Constructor: Batch },
@@ -76,6 +79,9 @@ function injectApis(options) {
     rbac: { Constructor: Rbac },
     thirdPartyResources: {
       Constructor: ThirdPartyResources, options: { group: 'kubernetes-client.com' }
+    },
+    customResourceDefinitions: {
+      Constructor: CustomResourceDefinition, options: { group: 'kubernetes-client.com' }
     }
   };
   Object.keys(apis).forEach(apiName => {
@@ -198,3 +204,4 @@ module.exports.beforeTesting = beforeTesting;
 module.exports.beforeTestingEach = beforeTestingEach;
 module.exports.only = only;
 module.exports.thirdPartyDomain = 'kubernetes-client.com';
+module.exports.customResourceDomain = 'kubernetes-client.com';
diff --git a/test/custom-resource-definition.test.js b/test/custom-resource-definition.test.js
new file mode 100644
index 00000000..87c391d4
--- /dev/null
+++ b/test/custom-resource-definition.test.js
@@ -0,0 +1,126 @@
+/* eslint max-nested-callbacks:0 */
+'use strict';
+
+const assume = require('assume');
+const async = require('async');
+const nock = require('nock');
+
+const common = require('./common');
+const afterTesting = common.afterTesting;
+const beforeTesting = common.beforeTesting;
+const only = common.only;
+
+const newResource = {
+  apiVersion: 'apiextensions.k8s.io/v1beta1',
+  kind: 'CustomResourceDefinition',
+  metadata: {
+    name: `newresources.${ common.customResourceDomain }`
+  },
+  spec: {
+    group: common.customResourceDomain,
+    version: 'v1',
+    scope: 'Namespaced',
+    names: {
+      plural: 'newresources',
+      singular: 'newresource',
+      kind: 'NewResource',
+      shortNames: [
+        'nr'
+      ]
+    }
+  }
+};
+
+const testManifest = {
+  apiVersion: `${ common.customResourceDomain }/v1`,
+  kind: 'NewResource',
+  metadata: {
+    name: 'test'
+  },
+  testProperty: 'hello world'
+};
+
+function createNewResource(cb) {
+  common.customResourceDefinitions.addResource('newresources');
+  common.apiExtensions.customresourcedefinition.delete(newResource.metadata.name, () => {
+    common.apiExtensions.customresourcedefinition.post({ body: newResource }, postErr => {
+      if (postErr) return cb(postErr);
+      //
+      // Creating the API endpoints for a 3rd party resource appears to be
+      // asynchronous with respect to creating the resource.
+      //
+      const times = common.defaultTimeout / 1000;
+      async.retry({ times: times, interval: 1000 }, next => {
+        common.customResourceDefinitions.ns(common.currentName).newresources.get(err => {
+          if (err) return next(err);
+          cb();
+        });
+      });
+    });
+  });
+}
+
+describe('lib.CustomResourceDefinition', () => {
+
+  beforeTesting('int', common.changeName);
+
+  describe('.addResource', () => {
+    only('unit', 'adds a BaseObject globally and to default namespace', () => {
+      common.customResourceDefinitions.addResource('newresources');
+      assume(common.customResourceDefinitions.newresources).is.truthy();
+      assume(common.customResourceDefinitions.namespace.newresources).is.truthy();
+    });
+  });
+
+  describe('.newresources', () => {
+    beforeTesting('int', done => {
+      createNewResource(done);
+    });
+    afterTesting('int', done => {
+      common.apiExtensions.customresourcedefinition.delete(newResource.metadata.name, done);
+    });
+
+    describe('.get', () => {
+      beforeTesting('unit', () => {
+        nock(common.customResourceDefinitions.url)
+          .get(`${ common.customResourceDefinitions.path }/newresources`)
+          .reply(200, { kind: 'NewResourceList' });
+      });
+
+      it('returns NewSourceList', done => {
+        common.customResourceDefinitions.newresources.get((err, results) => {
+          assume(err).is.falsy();
+          assume(results.kind).is.equal('NewResourceList');
+          done();
+        });
+      });
+    });
+
+    describe('.post', () => {
+      beforeTesting('unit', () => {
+        nock(common.customResourceDefinitions.url)
+          .post(`/apis/${ common.customResourceDomain }/v1/namespaces/${ common.currentName }/newresources`)
+          .reply(200, {})
+          .get(`/apis/${ common.customResourceDomain }/v1/namespaces/${ common.currentName }/newresources/test`)
+          .reply(200, { metadata: { name: 'test' }});
+      });
+
+      it('creates a resources', done => {
+        common.customResourceDefinitions
+          .ns
+          .newresources
+          .post({ body: testManifest }, postErr => {
+            assume(postErr).is.falsy();
+            common.customResourceDefinitions
+              .ns
+              .newresources
+              .get('test', (err, result) => {
+                assume(err).is.falsy();
+                assume(result.metadata.name).is.equal('test');
+                done();
+              });
+          });
+      });
+    });
+  });
+});