diff --git a/src/app.tsx b/src/app.tsx
index 9cd8b0e..31b88e6 100644
--- a/src/app.tsx
+++ b/src/app.tsx
@@ -9,6 +9,8 @@ import { NotFound } from "./pages/not-found";
 import { Stories } from "./pages/stories";
 import { Blog } from "./pages/blog";
 import { Post } from "./pages/post";
+import { SignUp } from './pages/sign_up';
+import { SignIn } from './pages/sign_in';
 
 import { Chapter1 } from "./pages/chapter1";
 import { Chapter2 } from "./pages/chapter2";
@@ -27,6 +29,8 @@ export const App: React.FC = () => {
 
             <Route path="/blog/:slug" component={Post} />
             <Route path="/blog" component={Blog} />
+            <Route path="/signup" component={SignUp} />
+            <Route path="/signin" component={SignIn} />
             <Route exact path="/" component={Stories} />
             <Route component={NotFound} />
           </Switch>
diff --git a/src/components/layout/header.tsx b/src/components/layout/header.tsx
index 57cd9fb..e17a2ec 100644
--- a/src/components/layout/header.tsx
+++ b/src/components/layout/header.tsx
@@ -67,8 +67,12 @@ export const Header: React.FC<{ onDark?: boolean }> = ({ onDark }) => {
                 className="w-full h-full pr-4"
               />
             }
-            <Button onDark={onDark}>Einloggen</Button>
-            <Button buttonOutline={true} onDark={onDark}>Registrieren</Button>
+            <Link to="signin">
+              <Button onDark={onDark}>Einloggen</Button>
+            </Link>
+            <Link to="signup">
+              <Button buttonOutline={true} onDark={onDark}>Registrieren</Button>
+            </Link>
           </div>
         </div>
       </div>
diff --git a/src/components/signin/index.tsx b/src/components/signin/index.tsx
new file mode 100644
index 0000000..7e99982
--- /dev/null
+++ b/src/components/signin/index.tsx
@@ -0,0 +1,45 @@
+import React, { useState } from "react";
+import { login } from "../../users_api/UserAPI";
+
+export const SignInForm: React.FC = () => {
+  const [email, setEmail] = useState<string>("");
+  const [password, setPassword] = useState<string>("");
+
+  const handleSignIn = async () => {
+    let data = {
+      email: email,
+      password: password
+    }
+    let response;
+    try {
+      response = await login(data)
+    } catch(error) {
+      console.log(error)
+    }
+    console.log(response)
+  }
+
+  return (
+    <div className="center-box mt-40 w-full max-w-lg">
+      <form className="bg-white shadow-md rounded px-8 pt-6 pb-8 mb-4">
+        <div className="mb-4">
+          <label className="block text-gray-700 text-sm font-bold mb-2">
+            E-Mail
+          </label>
+          <input value={email} onChange={ (e) => setEmail(e.target.value)} className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:outline-none focus:shadow-outline" id="username" type="text" placeholder="E-Mail" />
+        </div>
+        <div className="mb-6">
+          <label className="block text-gray-700 text-sm font-bold mb-2">
+            Passwort
+          </label>
+          <input value={password} onChange={ (e) => setPassword(e.target.value)} className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 mb-3 leading-tight focus:outline-none focus:shadow-outline" id="password" type="password" placeholder="Passwort" />
+        </div>
+        <div className="flex items-center justify-between">
+          <button onClick={ () => handleSignIn() }className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded focus:outline-none focus:shadow-outline" type="button">
+            Sign Up
+          </button>
+        </div>
+      </form>
+    </div>
+  )
+}
diff --git a/src/components/signup/index.tsx b/src/components/signup/index.tsx
new file mode 100644
index 0000000..55b3abc
--- /dev/null
+++ b/src/components/signup/index.tsx
@@ -0,0 +1,53 @@
+import React, { useState } from "react";
+import { createUser } from "../../users_api/UserAPI";
+
+export const SignUpForm: React.FC = () => {
+  const [email, setEmail] = useState<string>("");
+  const [password, setPassword] = useState<string>("");
+  const [password_confirmation, setPasswordConfirmation] = useState<string>("");
+
+  const handleSignUp = async () => {
+    let data = {
+      email: email,
+      password: password,
+      password_confirmation: password_confirmation
+    }
+    let response;
+    try {
+      response = await createUser(data)
+    } catch(error) {
+      console.log(error)
+    }
+    console.log(response)
+  }
+
+  return (
+    <div className="center-box mt-40 w-full max-w-lg">
+      <form className="bg-white shadow-md rounded px-8 pt-6 pb-8 mb-4">
+        <div className="mb-4">
+          <label className="block text-gray-700 text-sm font-bold mb-2">
+            E-Mail
+          </label>
+          <input value={email} onChange={ (e) => setEmail(e.target.value)} className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:outline-none focus:shadow-outline" id="username" type="text" placeholder="E-Mail" />
+        </div>
+        <div className="mb-6">
+          <label className="block text-gray-700 text-sm font-bold mb-2">
+            Passwort
+          </label>
+          <input value={password} onChange={ (e) => setPassword(e.target.value)} className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 mb-3 leading-tight focus:outline-none focus:shadow-outline" id="password" type="password" placeholder="Passwort" />
+        </div>
+        <div className="mb-6">
+          <label className="block text-gray-700 text-sm font-bold mb-2">
+            Passwort bestätigen
+          </label>
+          <input value={password_confirmation} onChange={ (e) => setPasswordConfirmation(e.target.value)} className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 mb-3 leading-tight focus:outline-none focus:shadow-outline" id="password" type="password" placeholder="Passwort bestätigen" />
+        </div>
+        <div className="flex items-center justify-between">
+          <button onClick={ () => handleSignUp() }className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded focus:outline-none focus:shadow-outline" type="button">
+            Sign Up
+          </button>
+        </div>
+      </form>
+    </div>
+  )
+}
diff --git a/src/config/index.ts b/src/config/index.ts
new file mode 100644
index 0000000..96a5387
--- /dev/null
+++ b/src/config/index.ts
@@ -0,0 +1,3 @@
+export default {
+  apiUrl: 'http://localhost:3000/api/v1'
+}
\ No newline at end of file
diff --git a/src/pages/sign_in.tsx b/src/pages/sign_in.tsx
new file mode 100644
index 0000000..9dc63c7
--- /dev/null
+++ b/src/pages/sign_in.tsx
@@ -0,0 +1,13 @@
+import React from "react";
+import { Layout } from "../components/layout";
+import { SEO } from "../components/seo";
+
+import { SignInForm } from "../components/signin/index";
+
+
+export const SignIn: React.FC = () => (
+  <Layout>
+    <SEO title="Login - Klimabox" />
+    <SignInForm />
+  </Layout>
+);
\ No newline at end of file
diff --git a/src/pages/sign_up.tsx b/src/pages/sign_up.tsx
new file mode 100644
index 0000000..ab6a89c
--- /dev/null
+++ b/src/pages/sign_up.tsx
@@ -0,0 +1,13 @@
+import React from "react";
+import { Layout } from "../components/layout";
+import { SEO } from "../components/seo";
+
+import { SignUpForm } from "../components/signup/index";
+
+
+export const SignUp: React.FC = () => (
+  <Layout>
+    <SEO title="Registrierung - Klimabox" />
+    <SignUpForm />
+  </Layout>
+);
\ No newline at end of file
diff --git a/src/users_api/BaseAPI.ts b/src/users_api/BaseAPI.ts
new file mode 100644
index 0000000..43582cf
--- /dev/null
+++ b/src/users_api/BaseAPI.ts
@@ -0,0 +1,142 @@
+import Config from '../config/index';
+
+export interface RequestOptions {
+  config: { apiUrl: string };
+  fetchFunc: typeof window.fetch;
+}
+
+class ResponseError extends Error {
+  public response?: Response;
+  public body: any;
+}
+
+export const corsFetchOptions: {
+  mode: RequestMode;
+  credentials: RequestCredentials;
+} = {
+  mode: 'cors',
+  credentials: 'include'
+};
+
+export const acceptJsonHeaders = {
+  Accept: 'application/json'
+};
+
+export const contentTypeJsonHeaders = {
+  'Content-Type': 'application/json; charset=utf-8'
+};
+
+export const contentTypeFormUrlEncodedHeaders = {
+  'Content-Type': 'application/x-www-form-urlencoded'
+};
+
+const checkStatus = async (response: Response) => {
+  if (!response.ok) {
+    const error = new ResponseError(
+      `${response.status} ${response.statusText}`
+    );
+    error.response = response;
+    // Try to parse the response body as JSON.
+    let body;
+    try {
+      body = await response.json();
+    } catch (e) {
+      // parsing the error response to json failed
+      // Reject the new promise
+      throw error;
+    }
+    // parsing the error response was succuess
+    // Add body property to error
+    error.body = body;
+    // Reject the new promise
+    throw error;
+  }
+  return response;
+};
+
+const parseJson = <T>(response: Response): T | Promise<T> =>
+  response.status === 204 ? ({} as T) : response.json();
+
+export const get = async <T>(url: string, options?: RequestOptions) => {
+  const mergedOptions: RequestOptions = {
+    config: Config,
+    fetchFunc: fetch,
+    ...options
+  };
+  const { config, fetchFunc } = mergedOptions;
+
+  const headers = {
+    ...acceptJsonHeaders
+  };
+
+  const fetchOptions = {
+    ...corsFetchOptions,
+    method: 'GET',
+    headers
+  };
+  const finalUrl = `${config.apiUrl}${url}`;
+
+  const response = await fetchFunc(finalUrl, fetchOptions);
+  const checkedResponse = await checkStatus(response);
+  return parseJson<T>(checkedResponse);
+};
+
+const requestWithBody = async <T>(
+  method: string,
+  url: string,
+  data: any,
+  options?: RequestOptions
+) => {
+  const mergedOptions: RequestOptions = {
+    config: Config,
+    fetchFunc: fetch,
+    ...options
+  };
+  const { config, fetchFunc } = mergedOptions;
+
+  // process different data types
+  let body: string;
+  let headers: { [key: string]: string };
+  if (typeof data === 'string') {
+    headers = {
+      ...acceptJsonHeaders,
+      ...contentTypeFormUrlEncodedHeaders
+    };
+    body = data;
+  } else {
+    headers = {
+      ...acceptJsonHeaders,
+      ...contentTypeJsonHeaders
+    };
+    body = JSON.stringify(data);
+  }
+
+  const fetchOptions = {
+    ...corsFetchOptions,
+    method,
+    headers,
+    body
+  };
+
+  const finalUrl = `${config.apiUrl}${url}`;
+
+  // this is the browser actually doing the fetch
+  const response = await fetchFunc(finalUrl, fetchOptions);
+  const checkedResponse = await checkStatus(response);
+  return parseJson<T>(checkedResponse);
+};
+
+export const post = <T>(url: string, data: any, options?: RequestOptions) =>
+  requestWithBody<T>('POST', url, data, options);
+
+export const put = <T>(url: string, data: any, options?: RequestOptions) =>
+  requestWithBody<T>('PUT', url, data, options);
+
+export const patch = <T>(url: string, data: any, options?: RequestOptions) =>
+  requestWithBody<T>('PATCH', url, data, options);
+
+/**
+ * Makes a DELETE request. Is called destroy because delete is a JavaScript keyword.
+ */
+export const destroy = <T>(url: string, data?: any, options?: RequestOptions) =>
+  requestWithBody<T>('DELETE', url, data, options);
diff --git a/src/users_api/UserAPI.ts b/src/users_api/UserAPI.ts
new file mode 100644
index 0000000..c8716bf
--- /dev/null
+++ b/src/users_api/UserAPI.ts
@@ -0,0 +1,29 @@
+import { destroy, get, patch, post } from './BaseAPI';
+
+const uri = encodeURIComponent;
+
+export const getUser = (id: number) => {
+  return get('/users/' + uri(id))
+}
+
+export const updateUser = (id: number, data: any) => {
+  return patch('/users/' + uri(id), {
+    user: data
+  })
+}
+
+export const createUser = (data: any) => {
+  return post('/users/', {
+    user: data
+  })
+}
+
+export const login = (data: any) => {
+  return post('/authenticate/', {
+    user: data
+  })
+}
+
+export const currentUser = () => {
+  return get('/sessions/')
+}
\ No newline at end of file