diff --git a/lib/contentstack.js b/lib/contentstack.js
index 5ecb13fa..cf716495 100644
--- a/lib/contentstack.js
+++ b/lib/contentstack.js
@@ -39,6 +39,11 @@ import httpClient from './core/contentstackHTTPClient.js'
  * import * as contentstack from '@contentstack/management'
  * const client = contentstack.client({ authtoken: 'value' })
  *
+ * @prop {string=} params.early_access - Optional early_access is a token used for early access of new features in CMA requests.
+ * @example //Set the `early_access`
+ * import * as contentstack from '@contentstack/management'
+ * const client = contentstack.client({ early_access: ['ea1', 'ea2'] })
+ *
  * @prop {string=} params.authorization - Optional authorization token is a read-write token used to make authorized CMA requests, but it is a user-specific token.
  * @example //Set the `authorization`
  * import * as contentstack from '@contentstack/management'
@@ -177,6 +182,9 @@ export function client (params = {}) {
   if (params.authorization) {
     requiredHeaders.authorization = params.authorization
   }
+  if (params.early_access) {
+    requiredHeaders.early_access = params.early_access.join(',')
+  }
   params = {
     ...defaultParameter,
     ...clonedeep(params)
diff --git a/lib/core/contentstackHTTPClient.js b/lib/core/contentstackHTTPClient.js
index 1ad77e1a..30f8dfad 100644
--- a/lib/core/contentstackHTTPClient.js
+++ b/lib/core/contentstackHTTPClient.js
@@ -44,6 +44,10 @@ export default function contentstackHttpClient (options) {
     config.headers['accessToken'] = config.accessToken
   }
 
+  if (config.early_access) {
+    config.headers['x-header-ea'] = config.early_access
+  }
+
   const protocol = config.insecure ? 'http' : 'https'
   let hostname = config.defaultHostName
   let port = config.port || 443
diff --git a/test/unit/ContentstackHTTPClient-test.js b/test/unit/ContentstackHTTPClient-test.js
index 12e3a28d..1b78a290 100644
--- a/test/unit/ContentstackHTTPClient-test.js
+++ b/test/unit/ContentstackHTTPClient-test.js
@@ -154,4 +154,17 @@ describe('Contentstack HTTP Client', () => {
     expect(client.defaults.retryCondition('error')).to.be.equal(true)
     done()
   })
+  it('should add x-header-ea in headers when early_access is passed', done => {
+    var axiosInstance = contentstackHTTPClient(
+      {
+        apiKey: 'apiKey',
+        accessToken: 'accessToken',
+        early_access: 'ea1,ea2'
+      })
+
+    expect(axiosInstance.defaults.headers.apiKey).to.be.equal('apiKey', 'Api not Equal to \'apiKey\'')
+    expect(axiosInstance.defaults.headers.accessToken).to.be.equal('accessToken', 'Api not Equal to \'accessToken\'')
+    expect(axiosInstance.defaults.headers['x-header-ea']).to.be.equal('ea1,ea2')
+    done()
+  })
 })
diff --git a/test/unit/contentstack-test.js b/test/unit/contentstack-test.js
index 18e0bd2c..067d6460 100644
--- a/test/unit/contentstack-test.js
+++ b/test/unit/contentstack-test.js
@@ -97,4 +97,15 @@ describe('Contentstack HTTP Client', () => {
     createClientRewireApi.__ResetDependency__('contentstackClient')
     done()
   })
+  it('should have valid format of early_access headers when early_access is passed', done => {
+    createClientRewireApi.__Rewire__('client', { create: sinon.stub() })
+    const createHttpClientStub = sinon.stub()
+    createClientRewireApi.__Rewire__('httpClient', createHttpClientStub)
+    createClientRewireApi.__Rewire__('contentstackClient', sinon.stub().returns({}))
+    client({ early_access: ['ea1', 'ea2'] })
+    expect(createHttpClientStub.args[0][0].headers.early_access).to.be.eql('ea1,ea2', 'Early access does not match')
+    createClientRewireApi.__ResetDependency__('httpClient')
+    createClientRewireApi.__ResetDependency__('contentstackClient')
+    done()
+  })
 })