diff --git a/composer.json b/composer.json
index 5f58bf4..b05609c 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
     "require-dev": {
         "phpunit/phpunit": "^8.0|^9.0",
         "orchestra/testbench": "^6.0",
-        "codedungeon/phpunit-result-printer": "^0.26.2"
+        "codedungeon/phpunit-result-printer": "^0.31"
     },
     "autoload": {
         "psr-4": {
diff --git a/config/bitinflow-accounts-api.php b/config/bitinflow-accounts-api.php
index ab5c57f..cb82da1 100644
--- a/config/bitinflow-accounts-api.php
+++ b/config/bitinflow-accounts-api.php
@@ -1,8 +1,8 @@
 <?php
 
 return [
-    'client_id'     => env('BITINFLOW_ACCOUNTS_KEY', ''),
-    'client_secret' => env('BITINFLOW_ACCOUNTS_SECRET', ''),
-    'redirect_url'  => env('BITINFLOW_ACCOUNTS_REDIRECT_URI', ''),
-    'base_url'      => env('BITINFLOW_ACCOUNTS_BASE_URI', ''),
-];
\ No newline at end of file
+    'client_id' => env('BITINFLOW_ACCOUNTS_KEY'),
+    'client_secret' => env('BITINFLOW_ACCOUNTS_SECRET'),
+    'redirect_url' => env('BITINFLOW_ACCOUNTS_REDIRECT_URI'),
+    'base_url' => env('BITINFLOW_ACCOUNTS_BASE_URI'),
+];
diff --git a/src/GhostZero/BitinflowAccounts/Providers/BitinflowAccountsSsoUserProvider.php b/src/GhostZero/BitinflowAccounts/Providers/BitinflowAccountsSsoUserProvider.php
new file mode 100644
index 0000000..336a2b9
--- /dev/null
+++ b/src/GhostZero/BitinflowAccounts/Providers/BitinflowAccountsSsoUserProvider.php
@@ -0,0 +1,117 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Providers;
+
+use GhostZero\BitinflowAccounts\BitinflowAccounts;
+use Illuminate\Contracts\Auth\Authenticatable;
+use Illuminate\Contracts\Auth\UserProvider;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Http\Request;
+use Illuminate\Support\Arr;
+
+class BitinflowAccountsSsoUserProvider implements UserProvider
+{
+    private $bitinflowAccounts;
+    private $accessTokenField = null;
+    private $fields;
+    private $model;
+    private $request;
+
+    public function __construct(
+        BitinflowAccounts $bitinflowAccounts,
+        Request $request,
+        string $model,
+        array $fields,
+        ?string $accessTokenField = null
+    ) {
+        $this->request = $request;
+        $this->model = $model;
+        $this->fields = $fields;
+        $this->accessTokenField = $accessTokenField;
+        $this->bitinflowAccounts = $bitinflowAccounts;
+    }
+
+    /**
+     * @param  mixed  $identifier
+     * @return Builder|Model|object|null
+     */
+    public function retrieveById($identifier)
+    {
+        $model = $this->createModel();
+
+        $user = $this->newModelQuery($model)
+            ->where($model->getAuthIdentifierName(), $identifier)
+            ->first();
+
+        if ($user) {
+            return $user;
+        }
+
+        $token = $this->request->bearerToken();
+
+        $this->bitinflowAccounts->setToken($token);
+
+        $result = $this->bitinflowAccounts->getAuthedUser();
+
+        if (!$result->success()) {
+            return null;
+        }
+
+        $attributes = Arr::only((array)$result->data(), $this->fields);
+        $attributes[$model->getAuthIdentifierName()] = $result->data->id;
+
+        if ($this->accessTokenField) {
+            $attributes[$this->accessTokenField] = $token;
+        }
+
+        return $this->newModelQuery($model)->create($attributes);
+    }
+
+    /**
+     * Create a new instance of the model.
+     *
+     * @return Model
+     */
+    public function createModel(): Model
+    {
+        $class = '\\'.ltrim($this->model, '\\');
+
+        return new $class;
+    }
+
+    /**
+     * Get a new query builder for the model instance.
+     *
+     * @param  Model|null  $model
+     * @return Builder
+     */
+    protected function newModelQuery(Model $model = null): Builder
+    {
+        return is_null($model)
+            ? $this->createModel()->newQuery()
+            : $model->newQuery();
+    }
+
+    public function retrieveByToken($identifier, $token)
+    {
+        return null;
+    }
+
+    public function updateRememberToken(Authenticatable $user, $token)
+    {
+        // void
+    }
+
+    public function retrieveByCredentials(array $credentials)
+    {
+        return null;
+    }
+
+    public function validateCredentials(Authenticatable $user, array $credentials)
+    {
+        return false;
+    }
+}