diff --git a/src/app/Http/Controllers/API/V4/MetricsController.php b/src/app/Http/Controllers/API/V4/MetricsController.php
new file mode 100644
--- /dev/null
+++ b/src/app/Http/Controllers/API/V4/MetricsController.php
@@ -0,0 +1,117 @@
+<?php
+
+namespace App\Http\Controllers\API\V4;
+
+use App\Http\Controllers\Controller;
+use App\Payment;
+use App\User;
+use App\Wallet;
+use Illuminate\Support\Facades\DB;
+
+class MetricsController extends Controller
+{
+    /**
+     * Collect current payers count
+     */
+    protected function collectPayersCount(): int
+    {
+        $tenant_id = \config('app.tenant_id');
+
+        // A subquery to get the all wallets with a successful payment
+        $payments = DB::table('payments')
+            ->selectRaw('distinct wallet_id')
+            ->where('status', Payment::STATUS_PAID);
+
+        // A subquery to get users' wallets (by entitlement) - one record per user
+        $wallets = DB::table('entitlements')
+            ->selectRaw("min(wallet_id) as id, entitleable_id as user_id")
+            ->where('entitleable_type', User::class)
+            ->groupBy('entitleable_id');
+
+        // Count all non-degraded and non-deleted users with any successful payment
+        $count = DB::table('users')
+            ->joinSub($wallets, 'wallets', function ($join) {
+                $join->on('users.id', '=', 'wallets.user_id');
+            })
+            ->joinSub($payments, 'payments', function ($join) {
+                $join->on('wallets.id', '=', 'payments.wallet_id');
+            })
+            ->whereNull('users.deleted_at')
+            ->whereNot('users.status', '&', User::STATUS_DEGRADED)
+            ->whereNot('users.status', '&', User::STATUS_SUSPENDED);
+
+        if ($tenant_id) {
+            $count->where('users.tenant_id', $tenant_id);
+        } else {
+            $count->whereNull('users.tenant_id');
+        }
+
+        return $count->count();
+    }
+
+    /**
+     * Collect number of wallets that require topup
+     */
+    protected function numberOfWalletsWithBalanceBelowManadate(): int
+    {
+        return Wallet::select('wallets.id')
+            ->join('users', 'users.id', '=', 'wallets.user_id')
+            ->join('wallet_settings', function (\Illuminate\Database\Query\JoinClause $join) {
+                $join->on('wallet_settings.wallet_id', '=', 'wallets.id')
+                    ->where('wallet_settings.key', '=', 'mandate_balance');
+            })
+            ->whereNull('users.deleted_at')
+            ->whereRaw('wallets.balance < (wallet_settings.value * 100)')
+            ->whereNot('users.status', '&', User::STATUS_DEGRADED | User::STATUS_SUSPENDED | User::STATUS_DELETED)
+            ->count();
+    }
+
+    /**
+     * Expose kolab metrics
+     *
+     * @return \Illuminate\Http\JsonResponse The response
+     */
+    public function metrics()
+    {
+        $appDomain = \config('app.domain');
+        $tenantId = \config('app.tenant_id');
+        //TODO just get this from the stats table instead?
+        $numberOfPayingUsers = $this->collectPayersCount();
+
+        $numberOfUsers = User::count();
+        $numberOfDeletedUsers = User::withTrashed()->whereNotNull('deleted_at')->count();
+        $numberOfSuspendedUsers = User::where('status', '&', User::STATUS_SUSPENDED)->count();
+        $numberOfRestrictedUsers = User::where('status', '&', User::STATUS_RESTRICTED)->count();
+        $numberOfWalletsWithBalanceBelowManadate = $this->numberOfWalletsWithBalanceBelowManadate();
+
+        $text = <<<EOF
+        # HELP kolab_users_count Total number of users
+        # TYPE kolab_users_count gauge
+        kolab_users_count{instance="$appDomain", tenant="$tenantId"} $numberOfUsers
+        # HELP kolab_users_deleted_count Number of deleted users
+        # TYPE kolab_users_deleted_count gauge
+        kolab_users_deleted_count{instance="$appDomain", tenant="$tenantId"} $numberOfDeletedUsers
+        # HELP kolab_users_suspended_count Number of suspended users
+        # TYPE kolab_users_suspended_count gauge
+        kolab_users_suspended_count{instance="$appDomain", tenant="$tenantId"} $numberOfSuspendedUsers
+        # HELP kolab_users_restricted_count Number of restricted users
+        # TYPE kolab_users_restricted_count gauge
+        kolab_users_restricted_count{instance="$appDomain", tenant="$tenantId"} $numberOfRestrictedUsers
+        # HELP kolab_users_paying_count Number of paying users
+        # TYPE kolab_users_paying_count gauge
+        kolab_users_paying_count{instance="$appDomain", tenant="$tenantId"} $numberOfPayingUsers
+        # HELP kolab_wallets_balance_below_mandate_amount_count Number of wallets requiring topup
+        # TYPE kolab_wallets_balance_below_mandate_amount_count gauge
+        kolab_wallets_balance_below_mandate_amount{instance="$appDomain", tenant="$tenantId"} $numberOfWalletsWithBalanceBelowManadate
+        \n
+        EOF;
+
+        return response(
+            $text,
+            200,
+            [
+                'Content-Type' => "text/plain",
+            ]
+        );
+    }
+}
diff --git a/src/routes/api.php b/src/routes/api.php
--- a/src/routes/api.php
+++ b/src/routes/api.php
@@ -227,6 +227,7 @@
             Route::post('policy/ratelimit', [API\V4\PolicyController::class, 'ratelimit']);
             Route::post('policy/spf', [API\V4\PolicyController::class, 'senderPolicyFramework']);
             Route::get('health/status', [API\V4\HealthController::class, 'status']);
+            Route::get('metrics', [API\V4\MetricsController::class, 'metrics']);
         }
     );
 }
diff --git a/src/tests/Feature/Controller/MetricsTest.php b/src/tests/Feature/Controller/MetricsTest.php
new file mode 100644
--- /dev/null
+++ b/src/tests/Feature/Controller/MetricsTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Tests\Feature\Controller;
+
+use Tests\TestCase;
+
+/**
+ * @group files
+ */
+class MetricsTest extends TestCase
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function setUp(): void
+    {
+        parent::setUp();
+        $this->useServicesUrl();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function tearDown(): void
+    {
+        parent::tearDown();
+    }
+
+    /**
+     * Test webhook
+     */
+    public function testStatus(): void
+    {
+        $response = $this->get("api/webhooks/metrics");
+        $response->assertStatus(200);
+
+        $body = $response->content();
+        $this->assertTrue(str_contains($body, 'kolab'));
+    }
+}