diff --git a/application/app.py b/application/app.py
index 95ac4a2b..08d4d316 100644
--- a/application/app.py
+++ b/application/app.py
@@ -39,18 +39,24 @@ def home():
 def api_answer():
     data = request.get_json()
     question = data["question"]
+    api_key = data["api_key"]
 
     store.index = index
     # create a prompt template
     c_prompt = PromptTemplate(input_variables=["summaries", "question"], template=template)
     # create a chain with the prompt template and the store
-    chain = VectorDBQAWithSourcesChain.from_llm(llm=OpenAI(temperature=0), vectorstore=store, combine_prompt=c_prompt)
+    chain = VectorDBQAWithSourcesChain.from_llm(llm=OpenAI(openai_api_key=api_key, temperature=0), vectorstore=store, combine_prompt=c_prompt)
     # fetch the answer
     result = chain({"question": question})
 
     # some formatting for the frontend
     result['answer'] = result['answer'].replace("\\n", "<br>")
     result['answer'] = result['answer'].replace("SOURCES:", "")
+    # mock result
+    # result = {
+    #     "answer": "The answer is 42",
+    #     "sources": ["https://en.wikipedia.org/wiki/42_(number)", "https://en.wikipedia.org/wiki/42_(number)"]
+    # }
 
 
     return result
diff --git a/application/static/dist/css/output.css b/application/static/dist/css/output.css
index 47f390b3..5fc831f4 100644
--- a/application/static/dist/css/output.css
+++ b/application/static/dist/css/output.css
@@ -513,6 +513,14 @@ video {
   --tw-backdrop-sepia:  ;
 }
 
+.pointer-events-none {
+  pointer-events: none;
+}
+
+.pointer-events-auto {
+  pointer-events: auto;
+}
+
 .static {
   position: static;
 }
@@ -521,24 +529,47 @@ video {
   position: fixed;
 }
 
-.bottom-0 {
-  bottom: 0px;
+.absolute {
+  position: absolute;
 }
 
-.right-0 {
+.relative {
+  position: relative;
+}
+
+.inset-0 {
+  top: 0px;
   right: 0px;
+  bottom: 0px;
+  left: 0px;
+}
+
+.top-0 {
+  top: 0px;
 }
 
 .left-0 {
   left: 0px;
 }
 
-.left-10 {
-  left: 2.5rem;
+.bottom-0 {
+  bottom: 0px;
 }
 
-.right-10 {
-  right: 2.5rem;
+.z-10 {
+  z-index: 10;
+}
+
+.ml-1 {
+  margin-left: 0.25rem;
+}
+
+.ml-2 {
+  margin-left: 0.5rem;
+}
+
+.mr-2 {
+  margin-right: 0.5rem;
 }
 
 .mt-2 {
@@ -553,18 +584,34 @@ video {
   margin-top: 1rem;
 }
 
-.ml-2 {
-  margin-left: 0.5rem;
+.mb-3 {
+  margin-bottom: 0.75rem;
 }
 
-.mr-2 {
-  margin-right: 0.5rem;
+.box-content {
+  box-sizing: content-box;
+}
+
+.inline-block {
+  display: inline-block;
 }
 
 .flex {
   display: flex;
 }
 
+.hidden {
+  display: none;
+}
+
+.h-full {
+  height: 100%;
+}
+
+.h-4 {
+  height: 1rem;
+}
+
 .h-5\/6 {
   height: 83.333333%;
 }
@@ -581,10 +628,36 @@ video {
   width: 100%;
 }
 
+.w-auto {
+  width: auto;
+}
+
+.w-4 {
+  width: 1rem;
+}
+
+.flex-shrink-0 {
+  flex-shrink: 0;
+}
+
+.transform {
+  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
+}
+
+.appearance-none {
+  -webkit-appearance: none;
+     -moz-appearance: none;
+          appearance: none;
+}
+
 .flex-col {
   flex-direction: column;
 }
 
+.flex-wrap {
+  flex-wrap: wrap;
+}
+
 .items-center {
   align-items: center;
 }
@@ -593,6 +666,14 @@ video {
   align-items: stretch;
 }
 
+.justify-end {
+  justify-content: flex-end;
+}
+
+.justify-center {
+  justify-content: center;
+}
+
 .justify-between {
   justify-content: space-between;
 }
@@ -605,19 +686,85 @@ video {
   align-self: flex-end;
 }
 
-.justify-self-stretch {
-  justify-self: stretch;
+.overflow-hidden {
+  overflow: hidden;
+}
+
+.overflow-y-auto {
+  overflow-y: auto;
+}
+
+.overflow-x-hidden {
+  overflow-x: hidden;
+}
+
+.rounded {
+  border-radius: 0.25rem;
+}
+
+.rounded-md {
+  border-radius: 0.375rem;
+}
+
+.rounded-none {
+  border-radius: 0px;
 }
 
 .rounded-lg {
   border-radius: 0.5rem;
 }
 
+.rounded-t-md {
+  border-top-left-radius: 0.375rem;
+  border-top-right-radius: 0.375rem;
+}
+
+.rounded-b-md {
+  border-bottom-right-radius: 0.375rem;
+  border-bottom-left-radius: 0.375rem;
+}
+
+.border-2 {
+  border-width: 2px;
+}
+
+.border-b {
+  border-bottom-width: 1px;
+}
+
+.border-t {
+  border-top-width: 1px;
+}
+
+.border-none {
+  border-style: none;
+}
+
+.border-gray-200 {
+  --tw-border-opacity: 1;
+  border-color: rgb(229 231 235 / var(--tw-border-opacity));
+}
+
+.border-gray-300 {
+  --tw-border-opacity: 1;
+  border-color: rgb(209 213 219 / var(--tw-border-opacity));
+}
+
+.bg-blue-600 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(37 99 235 / var(--tw-bg-opacity));
+}
+
 .bg-white {
   --tw-bg-opacity: 1;
   background-color: rgb(255 255 255 / var(--tw-bg-opacity));
 }
 
+.bg-purple-600 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(147 51 234 / var(--tw-bg-opacity));
+}
+
 .bg-indigo-500 {
   --tw-bg-opacity: 1;
   background-color: rgb(99 102 241 / var(--tw-bg-opacity));
@@ -628,10 +775,118 @@ video {
   background-color: rgb(59 130 246 / var(--tw-bg-opacity));
 }
 
+.bg-gray-900 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(17 24 39 / var(--tw-bg-opacity));
+}
+
+.bg-gray-100 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(243 244 246 / var(--tw-bg-opacity));
+}
+
+.bg-gray-200 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(229 231 235 / var(--tw-bg-opacity));
+}
+
+.bg-gray-500 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(107 114 128 / var(--tw-bg-opacity));
+}
+
+.bg-clip-padding {
+  background-clip: padding-box;
+}
+
+.p-4 {
+  padding: 1rem;
+}
+
+.p-1 {
+  padding: 0.25rem;
+}
+
 .p-2 {
   padding: 0.5rem;
 }
 
+.px-6 {
+  padding-left: 1.5rem;
+  padding-right: 1.5rem;
+}
+
+.py-2\.5 {
+  padding-top: 0.625rem;
+  padding-bottom: 0.625rem;
+}
+
+.py-2 {
+  padding-top: 0.5rem;
+  padding-bottom: 0.5rem;
+}
+
+.px-4 {
+  padding-left: 1rem;
+  padding-right: 1rem;
+}
+
+.py-3 {
+  padding-top: 0.75rem;
+  padding-bottom: 0.75rem;
+}
+
+.px-3 {
+  padding-left: 0.75rem;
+  padding-right: 0.75rem;
+}
+
+.pt-4 {
+  padding-top: 1rem;
+}
+
+.pb-20 {
+  padding-bottom: 5rem;
+}
+
+.pt-5 {
+  padding-top: 1.25rem;
+}
+
+.pb-4 {
+  padding-bottom: 1rem;
+}
+
+.pr-16 {
+  padding-right: 4rem;
+}
+
+.text-left {
+  text-align: left;
+}
+
+.text-center {
+  text-align: center;
+}
+
+.text-right {
+  text-align: right;
+}
+
+.font-mono {
+  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
+}
+
+.text-xs {
+  font-size: 0.75rem;
+  line-height: 1rem;
+}
+
+.text-xl {
+  font-size: 1.25rem;
+  line-height: 1.75rem;
+}
+
 .text-lg {
   font-size: 1.125rem;
   line-height: 1.75rem;
@@ -646,9 +901,16 @@ video {
   font-weight: 500;
 }
 
-.text-blue-500 {
-  --tw-text-opacity: 1;
-  color: rgb(59 130 246 / var(--tw-text-opacity));
+.uppercase {
+  text-transform: uppercase;
+}
+
+.leading-tight {
+  line-height: 1.25;
+}
+
+.leading-normal {
+  line-height: 1.5;
 }
 
 .text-white {
@@ -656,6 +918,94 @@ video {
   color: rgb(255 255 255 / var(--tw-text-opacity));
 }
 
+.text-current {
+  color: currentColor;
+}
+
+.text-gray-800 {
+  --tw-text-opacity: 1;
+  color: rgb(31 41 55 / var(--tw-text-opacity));
+}
+
+.text-black {
+  --tw-text-opacity: 1;
+  color: rgb(0 0 0 / var(--tw-text-opacity));
+}
+
+.text-blue-500 {
+  --tw-text-opacity: 1;
+  color: rgb(59 130 246 / var(--tw-text-opacity));
+}
+
+.text-gray-700 {
+  --tw-text-opacity: 1;
+  color: rgb(55 65 81 / var(--tw-text-opacity));
+}
+
+.text-yellow-500 {
+  --tw-text-opacity: 1;
+  color: rgb(234 179 8 / var(--tw-text-opacity));
+}
+
+.opacity-50 {
+  opacity: 0.5;
+}
+
+.opacity-75 {
+  opacity: 0.75;
+}
+
+.shadow-md {
+  --tw-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.shadow-lg {
+  --tw-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.shadow-xl {
+  --tw-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.outline-none {
+  outline: 2px solid transparent;
+  outline-offset: 2px;
+}
+
+.transition {
+  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, -webkit-backdrop-filter;
+  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter;
+  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter, -webkit-backdrop-filter;
+  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+  transition-duration: 150ms;
+}
+
+.transition-opacity {
+  transition-property: opacity;
+  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+  transition-duration: 150ms;
+}
+
+.transition-all {
+  transition-property: all;
+  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+  transition-duration: 150ms;
+}
+
+.duration-150 {
+  transition-duration: 150ms;
+}
+
+.ease-in-out {
+  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+}
+
 @media screen and (max-width: 1024px) {
   .text-lg {
     font-size: 3.125rem;
@@ -691,17 +1041,161 @@ video {
   }
 }
 
+.hover\:bg-blue-700:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(29 78 216 / var(--tw-bg-opacity));
+}
+
+.hover\:bg-purple-700:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(126 34 206 / var(--tw-bg-opacity));
+}
+
+.hover\:bg-gray-700:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(55 65 81 / var(--tw-bg-opacity));
+}
+
+.hover\:bg-blue-800:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(30 64 175 / var(--tw-bg-opacity));
+}
+
+.hover\:text-black:hover {
+  --tw-text-opacity: 1;
+  color: rgb(0 0 0 / var(--tw-text-opacity));
+}
+
 .hover\:text-blue-800:hover {
   --tw-text-opacity: 1;
   color: rgb(30 64 175 / var(--tw-text-opacity));
 }
 
-@media (min-width: 640px) {
-  @media not all and (min-width: 1024px) {
-    .sm\:max-lg\:mb-12 {
-      margin-bottom: 3rem;
-    }
+.hover\:text-yellow-800:hover {
+  --tw-text-opacity: 1;
+  color: rgb(133 77 14 / var(--tw-text-opacity));
+}
 
+.hover\:no-underline:hover {
+  text-decoration-line: none;
+}
+
+.hover\:opacity-75:hover {
+  opacity: 0.75;
+}
+
+.hover\:shadow-lg:hover {
+  --tw-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.focus\:border-indigo-700:focus {
+  --tw-border-opacity: 1;
+  border-color: rgb(67 56 202 / var(--tw-border-opacity));
+}
+
+.focus\:bg-blue-700:focus {
+  --tw-bg-opacity: 1;
+  background-color: rgb(29 78 216 / var(--tw-bg-opacity));
+}
+
+.focus\:bg-purple-700:focus {
+  --tw-bg-opacity: 1;
+  background-color: rgb(126 34 206 / var(--tw-bg-opacity));
+}
+
+.focus\:bg-white:focus {
+  --tw-bg-opacity: 1;
+  background-color: rgb(255 255 255 / var(--tw-bg-opacity));
+}
+
+.focus\:opacity-100:focus {
+  opacity: 1;
+}
+
+.focus\:shadow-lg:focus {
+  --tw-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.focus\:shadow-none:focus {
+  --tw-shadow: 0 0 #0000;
+  --tw-shadow-colored: 0 0 #0000;
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+.focus\:outline-none:focus {
+  outline: 2px solid transparent;
+  outline-offset: 2px;
+}
+
+.focus\:ring-0:focus {
+  --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);
+  --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(0px + var(--tw-ring-offset-width)) var(--tw-ring-color);
+  box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow, 0 0 #0000);
+}
+
+.active\:bg-blue-800:active {
+  --tw-bg-opacity: 1;
+  background-color: rgb(30 64 175 / var(--tw-bg-opacity));
+}
+
+.active\:bg-purple-800:active {
+  --tw-bg-opacity: 1;
+  background-color: rgb(107 33 168 / var(--tw-bg-opacity));
+}
+
+.active\:shadow-lg:active {
+  --tw-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
+@media (min-width: 640px) {
+  .sm\:my-8 {
+    margin-top: 2rem;
+    margin-bottom: 2rem;
+  }
+
+  .sm\:block {
+    display: block;
+  }
+
+  .sm\:inline-block {
+    display: inline-block;
+  }
+
+  .sm\:h-screen {
+    height: 100vh;
+  }
+
+  .sm\:w-full {
+    width: 100%;
+  }
+
+  .sm\:max-w-lg {
+    max-width: 32rem;
+  }
+
+  .sm\:p-0 {
+    padding: 0px;
+  }
+
+  .sm\:p-6 {
+    padding: 1.5rem;
+  }
+
+  .sm\:pb-4 {
+    padding-bottom: 1rem;
+  }
+
+  .sm\:align-middle {
+    vertical-align: middle;
+  }
+
+  @media not all and (min-width: 1024px) {
     .sm\:max-lg\:mb-\[12rem\] {
       margin-bottom: 12rem;
     }
@@ -725,10 +1219,6 @@ video {
     width: 75%;
   }
 
-  .lg\:w-\[46rem\] {
-    width: 46rem;
-  }
-
   .lg\:w-1\/4 {
     width: 25%;
   }
diff --git a/application/static/src/authapi.js b/application/static/src/authapi.js
new file mode 100644
index 00000000..d13d8aa0
--- /dev/null
+++ b/application/static/src/authapi.js
@@ -0,0 +1,15 @@
+function resetApiKey() {
+  document.getElementById('modal').classList.toggle('hidden')
+}
+
+
+var el2 = document.getElementById('api-key-form');
+if (el2) {
+    el2.addEventListener("submit", function (event) {
+        event.preventDefault()
+        var apiKey = document.getElementById("api-key-input").value;
+        document.getElementById('modal').classList.toggle('hidden')
+        localStorage.setItem('apiKey', apiKey)
+        document.getElementById('api-key-input').value = ''
+    });
+}
diff --git a/application/static/src/chat.js b/application/static/src/chat.js
index df26216d..9a830f23 100644
--- a/application/static/src/chat.js
+++ b/application/static/src/chat.js
@@ -19,7 +19,8 @@ if (el) {
             headers: {
                 'Content-Type': 'application/json',
             },
-            body: JSON.stringify({question: message}),
+
+            body: JSON.stringify({question: message, api_key: localStorage.getItem('apiKey')}),
         })
             .then(response => response.json())
             .then(data => {
diff --git a/application/static/src/input.css b/application/static/src/input.css
index a17532fe..9f0736b9 100644
--- a/application/static/src/input.css
+++ b/application/static/src/input.css
@@ -4,6 +4,7 @@
 
 
 
+
 @media screen and (max-width: 1024px) {
   .text-lg {
     font-size: 3.125rem;
diff --git a/application/templates/index.html b/application/templates/index.html
index b3368182..80688a8f 100644
--- a/application/templates/index.html
+++ b/application/templates/index.html
@@ -6,11 +6,20 @@
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
 
 
+
   </head>
+
+
   <body>
+
+
+
     <header class="bg-white p-2 flex justify-between items-center">
-      <h1 class="text-lg font-medium">DocsGPT 🦖 Very early Preview</h1>
+      <h1 class="text-lg font-medium">DocsGPT 🦖 Preview</h1>
+        <div>
       <a href="https://github.com/arc53/docsgpt" class="text-blue-500 hover:text-blue-800 text-sm">About</a>
+      <button class="text-sm text-yellow-500 hover:text-yellow-800" onclick="resetApiKey()">Reset Key</button>
+            </div>
     </header>
     <div class="lg:flex ml-2 mr-2">
       <div class="lg:w-3/4 min-h-screen max-h-screen">
@@ -54,6 +63,41 @@ This will return a new DataFrame with all the columns from both tables, and only
           <p class="text-sm">If you want to launch it on your own server - <a href="https://github.com/arc53/docsgpt/wiki/How-to-train-on-other-documentation" class="text-blue-500 hover:text-blue-800"> follow this guide </a></p>
         </div>
     </div>
+
+  <div class="flex items-center justify-center h-full">
+
+</div>
+<div class="fixed z-10 overflow-y-auto top-0 w-full left-0 hidden" id="modal">
+  <div class="flex items-center justify-center min-height-100vh pt-4 px-4 pb-20 text-center sm:block sm:p-0">
+    <div class="fixed inset-0 transition-opacity">
+      <div class="absolute inset-0 bg-gray-900 opacity-75" />
+    </div>
+    <span class="hidden sm:inline-block sm:align-middle sm:h-screen">&#8203;</span>
+    <div class=" text-sm inline-block align-center bg-white rounded-lg text-left overflow-hidden shadow-xl transform transition-all sm:my-8 sm:align-middle sm:max-w-lg sm:w-full" role="dialog" aria-modal="true" aria-labelledby="modal-headline">
+       <form id="api-key-form">
+        <div class="bg-white px-4 pt-5 pb-4 sm:p-6 sm:pb-4">
+        <h2>Before you can start using DocsGPT we need you to provide an API key for llm. Currently, we support only OpenAI but soon many more. You can find it <a class="text-blue-500 hover:text-blue-800" href="https://platform.openai.com/account/api-keys">here</a></h2><br>
+        <label>OpenAI API key:</label>
+
+        <input id="api-key-input" type="password" class="w-full bg-gray-100 p-2 mt-2 mb-3" placeholder="Paste you Api Key here">
+
+      </div>
+      <div class="bg-gray-200 px-4 py-3 text-right">
+        <button type="submit" class="py-2 px-4 bg-blue-500 text-white rounded hover:bg-blue-700 mr-2">Save</button>
+
+      </div>
+            </form>
+    </div>
+  </div>
+</div>
+      <script>
+      // check if api_key is set
+        if (localStorage.getItem('apiKey') === null) {
+            console.log("apiKey is not set")
+            document.getElementById('modal').classList.toggle('hidden')
+        }
+  </script>
+    <script src="{{url_for('static',filename='src/authapi.js')}}"></script>
   <script src="{{url_for('static',filename='src/chat.js')}}"></script>
   </body>
 </html>