diff --git a/app/Enums/CreditLedgerEntryType.php b/app/Enums/CreditLedgerEntryType.php
new file mode 100644
index 0000000..0b2b9a3
--- /dev/null
+++ b/app/Enums/CreditLedgerEntryType.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Enums;
+
+use Filament\Support\Contracts\HasColor;
+use Filament\Support\Contracts\HasLabel;
+
+enum CreditLedgerEntryType: string implements HasColor, HasLabel
+{
+    case FREE_GRANT = 'free_grant';
+    case PURCHASE = 'purchase';
+    case SUBSCRIPTION_RENEWAL = 'subscription_renewal';
+    case USAGE = 'usage';
+    case REFUND = 'refund';
+    case ADJUSTMENT = 'adjustment';
+
+    public function getLabel(): string
+    {
+        return match ($this) {
+            self::FREE_GRANT => __('enums.credit_ledger_entry_type.free_grant'),
+            self::PURCHASE => __('enums.credit_ledger_entry_type.purchase'),
+            self::SUBSCRIPTION_RENEWAL => __('enums.credit_ledger_entry_type.subscription_renewal'),
+            self::USAGE => __('enums.credit_ledger_entry_type.usage'),
+            self::REFUND => __('enums.credit_ledger_entry_type.refund'),
+            self::ADJUSTMENT => __('enums.credit_ledger_entry_type.adjustment'),
+        };
+    }
+
+    public function getColor(): string
+    {
+        return match ($this) {
+            self::FREE_GRANT, self::PURCHASE, self::SUBSCRIPTION_RENEWAL => 'success',
+            self::USAGE => 'warning',
+            self::REFUND => 'info',
+            self::ADJUSTMENT => 'gray',
+        };
+    }
+}
diff --git a/app/Enums/CreditProductType.php b/app/Enums/CreditProductType.php
new file mode 100644
index 0000000..e532cd4
--- /dev/null
+++ b/app/Enums/CreditProductType.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Enums;
+
+use Filament\Support\Contracts\HasColor;
+use Filament\Support\Contracts\HasLabel;
+
+enum CreditProductType: string implements HasColor, HasLabel
+{
+    case MONTHLY = 'monthly';
+    case ONE_TIME = 'one_time';
+
+    public function getLabel(): string
+    {
+        return match ($this) {
+            self::MONTHLY => __('enums.credit_product_type.monthly'),
+            self::ONE_TIME => __('enums.credit_product_type.one_time'),
+        };
+    }
+
+    public function getColor(): string
+    {
+        return match ($this) {
+            self::MONTHLY => 'info',
+            self::ONE_TIME => 'success',
+        };
+    }
+}
diff --git a/app/Filament/Resources/CreditProducts/CreditProductResource.php b/app/Filament/Resources/CreditProducts/CreditProductResource.php
new file mode 100644
index 0000000..ebcead5
--- /dev/null
+++ b/app/Filament/Resources/CreditProducts/CreditProductResource.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace App\Filament\Resources\CreditProducts;
+
+use App\Filament\Resources\CreditProducts\Pages\CreateCreditProduct;
+use App\Filament\Resources\CreditProducts\Pages\EditCreditProduct;
+use App\Filament\Resources\CreditProducts\Pages\ListCreditProducts;
+use App\Filament\Resources\CreditProducts\Schemas\CreditProductForm;
+use App\Filament\Resources\CreditProducts\Tables\CreditProductsTable;
+use App\Models\CreditProduct;
+use App\Services\StripeCreditProductSyncer;
+use BackedEnum;
+use Filament\Actions\Action;
+use Filament\Notifications\Notification;
+use Filament\Resources\Resource;
+use Filament\Schemas\Schema;
+use Filament\Support\Icons\Heroicon;
+use Filament\Tables\Table;
+
+class CreditProductResource extends Resource
+{
+    protected static ?string $model = CreditProduct::class;
+
+    protected static string|BackedEnum|null $navigationIcon = Heroicon::OutlinedCreditCard;
+
+    protected static ?string $recordTitleAttribute = 'name';
+
+    public static function getNavigationLabel(): string
+    {
+        return __('admin.credit_products.navigation.label');
+    }
+
+    public static function getModelLabel(): string
+    {
+        return __('admin.credit_products.navigation.singular');
+    }
+
+    public static function getPluralModelLabel(): string
+    {
+        return __('admin.credit_products.navigation.plural');
+    }
+
+    public static function form(Schema $schema): Schema
+    {
+        return CreditProductForm::configure($schema);
+    }
+
+    public static function table(Table $table): Table
+    {
+        return CreditProductsTable::configure($table);
+    }
+
+    public static function syncStripeAction(): Action
+    {
+        return Action::make('syncStripe')
+            ->label(__('admin.credit_products.actions.sync_stripe'))
+            ->icon(Heroicon::OutlinedArrowPath)
+            ->visible(fn (CreditProduct $record): bool => blank($record->stripe_price_id))
+            ->requiresConfirmation()
+            ->action(function (CreditProduct $record): void {
+                app(StripeCreditProductSyncer::class)->sync($record);
+
+                Notification::make()
+                    ->title(__('admin.credit_products.actions.sync_stripe_success'))
+                    ->success()
+                    ->send();
+            });
+    }
+
+    public static function getPages(): array
+    {
+        return [
+            'index' => ListCreditProducts::route('/'),
+            'create' => CreateCreditProduct::route('/create'),
+            'edit' => EditCreditProduct::route('/{record}/edit'),
+        ];
+    }
+}
diff --git a/app/Filament/Resources/CreditProducts/Pages/CreateCreditProduct.php b/app/Filament/Resources/CreditProducts/Pages/CreateCreditProduct.php
new file mode 100644
index 0000000..7f50b21
--- /dev/null
+++ b/app/Filament/Resources/CreditProducts/Pages/CreateCreditProduct.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Filament\Resources\CreditProducts\Pages;
+
+use App\Filament\Resources\CreditProducts\CreditProductResource;
+use Filament\Resources\Pages\CreateRecord;
+
+class CreateCreditProduct extends CreateRecord
+{
+    protected static string $resource = CreditProductResource::class;
+}
diff --git a/app/Filament/Resources/CreditProducts/Pages/EditCreditProduct.php b/app/Filament/Resources/CreditProducts/Pages/EditCreditProduct.php
new file mode 100644
index 0000000..8e4f58e
--- /dev/null
+++ b/app/Filament/Resources/CreditProducts/Pages/EditCreditProduct.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Filament\Resources\CreditProducts\Pages;
+
+use App\Filament\Resources\CreditProducts\CreditProductResource;
+use Filament\Actions\DeleteAction;
+use Filament\Resources\Pages\EditRecord;
+
+class EditCreditProduct extends EditRecord
+{
+    protected static string $resource = CreditProductResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            CreditProductResource::syncStripeAction(),
+            DeleteAction::make(),
+        ];
+    }
+}
diff --git a/app/Filament/Resources/CreditProducts/Pages/ListCreditProducts.php b/app/Filament/Resources/CreditProducts/Pages/ListCreditProducts.php
new file mode 100644
index 0000000..f9bc19f
--- /dev/null
+++ b/app/Filament/Resources/CreditProducts/Pages/ListCreditProducts.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Filament\Resources\CreditProducts\Pages;
+
+use App\Filament\Resources\CreditProducts\CreditProductResource;
+use Filament\Actions\CreateAction;
+use Filament\Resources\Pages\ListRecords;
+
+class ListCreditProducts extends ListRecords
+{
+    protected static string $resource = CreditProductResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            CreateAction::make(),
+        ];
+    }
+}
diff --git a/app/Filament/Resources/CreditProducts/Schemas/CreditProductForm.php b/app/Filament/Resources/CreditProducts/Schemas/CreditProductForm.php
new file mode 100644
index 0000000..39c0613
--- /dev/null
+++ b/app/Filament/Resources/CreditProducts/Schemas/CreditProductForm.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Filament\Resources\CreditProducts\Schemas;
+
+use App\Enums\CreditProductType;
+use Filament\Forms\Components\Select;
+use Filament\Forms\Components\TextInput;
+use Filament\Forms\Components\Textarea;
+use Filament\Forms\Components\Toggle;
+use Filament\Schemas\Components\Section;
+use Filament\Schemas\Schema;
+
+class CreditProductForm
+{
+    public static function configure(Schema $schema): Schema
+    {
+        return $schema
+            ->components([
+                Section::make(__('admin.credit_products.sections.product'))
+                    ->columns(2)
+                    ->schema([
+                        TextInput::make('name')
+                            ->label(__('admin.credit_products.fields.name'))
+                            ->required()
+                            ->maxLength(255),
+                        Select::make('type')
+                            ->label(__('admin.credit_products.fields.type'))
+                            ->options(CreditProductType::class)
+                            ->default(CreditProductType::ONE_TIME->value)
+                            ->required(),
+                        TextInput::make('credits')
+                            ->label(__('admin.credit_products.fields.credits'))
+                            ->integer()
+                            ->minValue(1)
+                            ->required(),
+                        TextInput::make('amount')
+                            ->label(__('admin.credit_products.fields.amount'))
+                            ->helperText(__('admin.credit_products.helpers.amount'))
+                            ->integer()
+                            ->minValue(1)
+                            ->required(),
+                        TextInput::make('currency')
+                            ->label(__('admin.credit_products.fields.currency'))
+                            ->default('eur')
+                            ->required()
+                            ->maxLength(3),
+                        TextInput::make('sort_order')
+                            ->label(__('admin.credit_products.fields.sort_order'))
+                            ->integer()
+                            ->default(0)
+                            ->required(),
+                        Textarea::make('description')
+                            ->label(__('admin.credit_products.fields.description'))
+                            ->rows(3)
+                            ->columnSpanFull(),
+                        Toggle::make('is_active')
+                            ->label(__('admin.credit_products.fields.is_active'))
+                            ->default(true),
+                    ]),
+                Section::make(__('admin.credit_products.sections.stripe'))
+                    ->columns(2)
+                    ->schema([
+                        TextInput::make('stripe_product_id')
+                            ->label(__('admin.credit_products.fields.stripe_product_id'))
+                            ->maxLength(255),
+                        TextInput::make('stripe_price_id')
+                            ->label(__('admin.credit_products.fields.stripe_price_id'))
+                            ->unique(ignoreRecord: true)
+                            ->maxLength(255),
+                    ]),
+            ]);
+    }
+}
diff --git a/app/Filament/Resources/CreditProducts/Tables/CreditProductsTable.php b/app/Filament/Resources/CreditProducts/Tables/CreditProductsTable.php
new file mode 100644
index 0000000..ed44126
--- /dev/null
+++ b/app/Filament/Resources/CreditProducts/Tables/CreditProductsTable.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Filament\Resources\CreditProducts\Tables;
+
+use App\Enums\CreditProductType;
+use App\Filament\Resources\CreditProducts\CreditProductResource;
+use Filament\Actions\BulkActionGroup;
+use Filament\Actions\DeleteBulkAction;
+use Filament\Actions\EditAction;
+use Filament\Tables\Columns\IconColumn;
+use Filament\Tables\Columns\TextColumn;
+use Filament\Tables\Filters\SelectFilter;
+use Filament\Tables\Filters\TernaryFilter;
+use Filament\Tables\Table;
+
+class CreditProductsTable
+{
+    public static function configure(Table $table): Table
+    {
+        return $table
+            ->defaultSort('sort_order')
+            ->columns([
+                TextColumn::make('name')
+                    ->label(__('admin.credit_products.fields.name'))
+                    ->searchable()
+                    ->sortable(),
+                TextColumn::make('type')
+                    ->label(__('admin.credit_products.fields.type'))
+                    ->badge()
+                    ->sortable(),
+                TextColumn::make('credits')
+                    ->label(__('admin.credit_products.fields.credits'))
+                    ->numeric(decimalPlaces: 0)
+                    ->sortable(),
+                TextColumn::make('amount')
+                    ->label(__('admin.credit_products.fields.amount'))
+                    ->money(fn ($record): string => $record->currency, divideBy: 100)
+                    ->sortable(),
+                TextColumn::make('stripe_price_id')
+                    ->label(__('admin.credit_products.fields.stripe_price_id'))
+                    ->copyable()
+                    ->searchable()
+                    ->toggleable(),
+                IconColumn::make('is_active')
+                    ->label(__('admin.credit_products.fields.is_active'))
+                    ->boolean()
+                    ->sortable(),
+                TextColumn::make('sort_order')
+                    ->label(__('admin.credit_products.fields.sort_order'))
+                    ->sortable()
+                    ->toggleable(isToggledHiddenByDefault: true),
+                TextColumn::make('created_at')
+                    ->label(__('admin.credit_products.fields.created_at'))
+                    ->dateTime()
+                    ->sortable()
+                    ->toggleable(isToggledHiddenByDefault: true),
+            ])
+            ->filters([
+                SelectFilter::make('type')
+                    ->label(__('admin.credit_products.fields.type'))
+                    ->options(CreditProductType::class),
+                TernaryFilter::make('is_active')
+                    ->label(__('admin.credit_products.fields.is_active')),
+            ])
+            ->recordActions([
+                CreditProductResource::syncStripeAction(),
+                EditAction::make(),
+            ])
+            ->toolbarActions([
+                BulkActionGroup::make([
+                    DeleteBulkAction::make(),
+                ]),
+            ]);
+    }
+}
diff --git a/app/Http/Controllers/BillingController.php b/app/Http/Controllers/BillingController.php
new file mode 100644
index 0000000..baaab2c
--- /dev/null
+++ b/app/Http/Controllers/BillingController.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Enums\CreditProductType;
+use App\Http\Resources\CreditProductResource;
+use App\Models\CreditProduct;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
+
+class BillingController extends Controller
+{
+    public function products(): AnonymousResourceCollection
+    {
+        $products = CreditProduct::query()
+            ->active()
+            ->whereNotNull('stripe_price_id')
+            ->orderBy('sort_order')
+            ->orderBy('amount')
+            ->get();
+
+        return CreditProductResource::collection($products);
+    }
+
+    public function checkout(Request $request, CreditProduct $creditProduct): JsonResponse
+    {
+        abort_unless($creditProduct->is_active, 404);
+        abort_unless(filled($creditProduct->stripe_price_id), 404);
+
+        $user = $request->user();
+        $metadata = [
+            'credit_product_id' => $creditProduct->getKey(),
+            'credit_product_type' => $creditProduct->type->value,
+            'credits' => (string) $creditProduct->credits,
+        ];
+        $sessionOptions = [
+            'success_url' => $this->redirectUrl('success'),
+            'cancel_url' => $this->redirectUrl('cancel'),
+            'metadata' => $metadata,
+            'client_reference_id' => $creditProduct->getKey(),
+        ];
+
+        if ($creditProduct->type === CreditProductType::MONTHLY) {
+            $checkout = $user
+                ->newSubscription('default', $creditProduct->stripe_price_id)
+                ->withMetadata($metadata)
+                ->checkout($sessionOptions);
+        } else {
+            $checkout = $user->checkout([
+                $creditProduct->stripe_price_id => 1,
+            ], $sessionOptions);
+        }
+
+        $session = $checkout->asStripeCheckoutSession();
+
+        return response()->json([
+            'id' => $session->id,
+            'url' => $session->url,
+        ]);
+    }
+
+    public function portal(Request $request): JsonResponse
+    {
+        return response()->json([
+            'url' => $request->user()->billingPortalUrl($this->redirectUrl('portal')),
+        ]);
+    }
+
+    private function redirectUrl(string $status): string
+    {
+        $scheme = trim((string) config('app.mobile_scheme', env('APP_MOBILE_SCHEME', 'bowly')), ':/');
+
+        return "{$scheme}:///billing/{$status}";
+    }
+}
diff --git a/app/Http/Controllers/MealImageAnalysisController.php b/app/Http/Controllers/MealImageAnalysisController.php
index 1c23824..e7f41d1 100644
--- a/app/Http/Controllers/MealImageAnalysisController.php
+++ b/app/Http/Controllers/MealImageAnalysisController.php
@@ -7,6 +7,7 @@ use App\Enums\AiUsageType;
 use App\Enums\IngredientUnit;
 use App\Enums\MealPostType;
 use App\Http\Requests\MealImageAnalysisRequest;
+use App\Services\AiCreditService;
 use App\Services\AiUsageRecorder;
 use Illuminate\Contracts\Support\Arrayable;
 use Illuminate\Http\JsonResponse;
@@ -17,11 +18,25 @@ use Throwable;
 
 class MealImageAnalysisController extends Controller
 {
-    public function store(MealImageAnalysisRequest $request, AiUsageRecorder $aiUsageRecorder): JsonResponse
+    public function store(
+        MealImageAnalysisRequest $request,
+        AiCreditService $aiCredits,
+        AiUsageRecorder $aiUsageRecorder,
+    ): JsonResponse
     {
+        $user = $request->user();
         $image = $request->file('image');
         $input = $this->analysisInput($image);
 
+        if (! $aiCredits->consume($user)) {
+            return response()->json([
+                'message' => __('api.meal_image_analysis.insufficient_credits'),
+                'credits' => [
+                    'balance' => $user->ai_credits_balance,
+                ],
+            ], 402);
+        }
+
         try {
             $response = MealImageAnalyzer::make()->prompt(
                 $this->prompt(),
@@ -31,8 +46,10 @@ class MealImageAnalysisController extends Controller
         } catch (Throwable $exception) {
             report($exception);
 
+            $aiCredits->refund($user);
+
             $aiUsageRecorder->failed(
-                user: $request->user(),
+                user: $user,
                 type: AiUsageType::MEAL_IMAGE_ANALYSIS,
                 exception: $exception,
                 input: $input,
@@ -50,7 +67,7 @@ class MealImageAnalysisController extends Controller
         );
 
         $aiUsageRecorder->success(
-            user: $request->user(),
+            user: $user,
             type: AiUsageType::MEAL_IMAGE_ANALYSIS,
             input: $input,
             output: $draft,
@@ -63,6 +80,9 @@ class MealImageAnalysisController extends Controller
 
         return response()->json([
             'data' => $draft,
+            'credits' => [
+                'balance' => $user->fresh()->ai_credits_balance,
+            ],
         ]);
     }
 
diff --git a/app/Http/Resources/CreditProductResource.php b/app/Http/Resources/CreditProductResource.php
new file mode 100644
index 0000000..aad5ed0
--- /dev/null
+++ b/app/Http/Resources/CreditProductResource.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class CreditProductResource extends JsonResource
+{
+    /**
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'name' => $this->name,
+            'description' => $this->description,
+            'type' => $this->type,
+            'credits' => $this->credits,
+            'amount' => $this->amount,
+            'currency' => $this->currency,
+            'formattedAmount' => $this->formattedAmount(),
+        ];
+    }
+}
diff --git a/app/Http/Resources/UserResource.php b/app/Http/Resources/UserResource.php
index e8461b5..0907893 100644
--- a/app/Http/Resources/UserResource.php
+++ b/app/Http/Resources/UserResource.php
@@ -27,6 +27,7 @@ class UserResource extends JsonResource
             'bio' => $this->bio,
             'role' => $this->role,
             'accountVerified' => $this->account_verified_at !== null,
+            'aiCreditsBalance' => (int) $this->ai_credits_balance,
             'suspendedAt' => $this->suspended_at?->toISOString(),
             'physicalActivityLevel' => $this->physical_activity_level,
             'physicalActivityLevelLabel' => $this->physical_activity_level?->getLabel(),
diff --git a/app/Listeners/GrantCreditsFromStripeWebhook.php b/app/Listeners/GrantCreditsFromStripeWebhook.php
new file mode 100644
index 0000000..db70cf8
--- /dev/null
+++ b/app/Listeners/GrantCreditsFromStripeWebhook.php
@@ -0,0 +1,126 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Enums\CreditLedgerEntryType;
+use App\Enums\CreditProductType;
+use App\Models\CreditProduct;
+use App\Models\User;
+use App\Services\AiCreditService;
+
+class GrantCreditsFromStripeWebhook
+{
+    public function __construct(private AiCreditService $credits) {}
+
+    /**
+     * @param  array{payload: array<string, mixed>}  $event
+     */
+    public function handle(object $event): void
+    {
+        $payload = $event->payload ?? [];
+
+        match ($payload['type'] ?? null) {
+            'checkout.session.completed' => $this->handleCheckoutSessionCompleted($payload),
+            'invoice.paid' => $this->handleInvoicePaid($payload),
+            default => null,
+        };
+    }
+
+    /**
+     * @param  array<string, mixed>  $payload
+     */
+    private function handleCheckoutSessionCompleted(array $payload): void
+    {
+        $session = $payload['data']['object'] ?? [];
+
+        if (($session['mode'] ?? null) !== 'payment' || ($session['payment_status'] ?? null) !== 'paid') {
+            return;
+        }
+
+        $product = $this->productFromMetadata($session['metadata'] ?? null, CreditProductType::ONE_TIME);
+        $user = $this->userFromCustomer($session['customer'] ?? null);
+
+        if (! $product || ! $user) {
+            return;
+        }
+
+        $this->credits->grant(
+            user: $user,
+            credits: $product->credits,
+            type: CreditLedgerEntryType::PURCHASE,
+            product: $product,
+            source: 'stripe_checkout_session:'.$session['id'],
+            stripeCheckoutSessionId: $session['id'] ?? null,
+            stripePaymentIntentId: $session['payment_intent'] ?? null,
+            metadata: [
+                'stripe_event_id' => $payload['id'] ?? null,
+            ],
+        );
+    }
+
+    /**
+     * @param  array<string, mixed>  $payload
+     */
+    private function handleInvoicePaid(array $payload): void
+    {
+        $invoice = $payload['data']['object'] ?? [];
+        $user = $this->userFromCustomer($invoice['customer'] ?? null);
+
+        if (! $user) {
+            return;
+        }
+
+        foreach (($invoice['lines']['data'] ?? []) as $line) {
+            $priceId = $line['price']['id'] ?? null;
+
+            if (! $priceId) {
+                continue;
+            }
+
+            $product = CreditProduct::query()
+                ->where('type', CreditProductType::MONTHLY)
+                ->where('stripe_price_id', $priceId)
+                ->first();
+
+            if (! $product) {
+                continue;
+            }
+
+            $this->credits->grant(
+                user: $user,
+                credits: $product->credits,
+                type: CreditLedgerEntryType::SUBSCRIPTION_RENEWAL,
+                product: $product,
+                source: 'stripe_invoice:'.$invoice['id'].':price:'.$priceId,
+                stripeInvoiceId: $invoice['id'] ?? null,
+                stripePaymentIntentId: $invoice['payment_intent'] ?? null,
+                stripeSubscriptionId: $invoice['subscription'] ?? null,
+                metadata: [
+                    'billing_reason' => $invoice['billing_reason'] ?? null,
+                    'stripe_event_id' => $payload['id'] ?? null,
+                ],
+            );
+        }
+    }
+
+    private function userFromCustomer(mixed $customer): ?User
+    {
+        if (! is_string($customer) || $customer === '') {
+            return null;
+        }
+
+        return User::query()->where('stripe_id', $customer)->first();
+    }
+
+    private function productFromMetadata(mixed $metadata, CreditProductType $type): ?CreditProduct
+    {
+        if (! is_array($metadata) || ! is_string($metadata['credit_product_id'] ?? null)) {
+            return null;
+        }
+
+        return CreditProduct::query()
+            ->whereKey($metadata['credit_product_id'])
+            ->where('type', $type)
+            ->first();
+    }
+}
diff --git a/app/Models/CreditLedgerEntry.php b/app/Models/CreditLedgerEntry.php
new file mode 100644
index 0000000..ad99877
--- /dev/null
+++ b/app/Models/CreditLedgerEntry.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Models;
+
+use App\Enums\CreditLedgerEntryType;
+use Illuminate\Database\Eloquent\Concerns\HasUlids;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class CreditLedgerEntry extends Model
+{
+    /** @use HasFactory<\Database\Factories\CreditLedgerEntryFactory> */
+    use HasFactory, HasUlids;
+
+    protected $fillable = [
+        'user_id',
+        'credit_product_id',
+        'type',
+        'credits',
+        'balance_after',
+        'source',
+        'stripe_checkout_session_id',
+        'stripe_invoice_id',
+        'stripe_payment_intent_id',
+        'stripe_subscription_id',
+        'metadata',
+    ];
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function creditProduct(): BelongsTo
+    {
+        return $this->belongsTo(CreditProduct::class);
+    }
+
+    protected function casts(): array
+    {
+        return [
+            'type' => CreditLedgerEntryType::class,
+            'credits' => 'integer',
+            'balance_after' => 'integer',
+            'metadata' => 'array',
+        ];
+    }
+}
diff --git a/app/Models/CreditProduct.php b/app/Models/CreditProduct.php
new file mode 100644
index 0000000..7286c67
--- /dev/null
+++ b/app/Models/CreditProduct.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Models;
+
+use App\Enums\CreditProductType;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Concerns\HasUlids;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class CreditProduct extends Model
+{
+    /** @use HasFactory<\Database\Factories\CreditProductFactory> */
+    use HasFactory, HasUlids;
+
+    protected $fillable = [
+        'name',
+        'description',
+        'type',
+        'credits',
+        'amount',
+        'currency',
+        'stripe_product_id',
+        'stripe_price_id',
+        'is_active',
+        'sort_order',
+    ];
+
+    public function ledgerEntries(): HasMany
+    {
+        return $this->hasMany(CreditLedgerEntry::class);
+    }
+
+    public function scopeActive(Builder $query): Builder
+    {
+        return $query->where('is_active', true);
+    }
+
+    public function formattedAmount(): string
+    {
+        return number_format($this->amount / 100, 2, ',', ' ').' '.strtoupper($this->currency);
+    }
+
+    protected function casts(): array
+    {
+        return [
+            'type' => CreditProductType::class,
+            'credits' => 'integer',
+            'amount' => 'integer',
+            'is_active' => 'boolean',
+            'sort_order' => 'integer',
+        ];
+    }
+}
diff --git a/app/Models/User.php b/app/Models/User.php
index fc40e35..c9e4436 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -23,12 +23,13 @@ use Illuminate\Database\Eloquent\SoftDeletes;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 use Illuminate\Support\Facades\Storage;
+use Laravel\Cashier\Billable;
 use Laravel\Sanctum\HasApiTokens;
 
 class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocalePreference, MustVerifyEmail
 {
     /** @use HasFactory<\Database\Factories\UserFactory> */
-    use HasApiTokens, HasFactory, HasUlids, Notifiable, SoftDeletes;
+    use Billable, HasApiTokens, HasFactory, HasUlids, Notifiable, SoftDeletes;
 
     /**
      * The attributes that are mass assignable.
@@ -58,6 +59,7 @@ class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocale
         'suspended_at',
         'suspended_by',
         'suspended_reason',
+        'ai_credits_balance',
     ];
 
     /**
@@ -92,6 +94,8 @@ class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocale
             'role' => UserRole::class,
             'date_of_birth' => 'immutable_date',
             'suspended_at' => 'datetime',
+            'trial_ends_at' => 'datetime',
+            'ai_credits_balance' => 'integer',
         ];
     }
 
@@ -115,6 +119,11 @@ class User extends Authenticatable implements FilamentUser, HasAvatar, HasLocale
         return $this->hasMany(AiUsage::class);
     }
 
+    public function creditLedgerEntries(): HasMany
+    {
+        return $this->hasMany(CreditLedgerEntry::class);
+    }
+
     public function workouts(): HasMany
     {
         return $this->hasMany(WorkoutSessions::class);
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index e7302ad..cc79196 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -3,6 +3,7 @@
 namespace App\Providers;
 
 use App\Broadcasting\ExpoPushChannel;
+use App\Listeners\GrantCreditsFromStripeWebhook;
 use App\Mail\ResetPasswordMail;
 use App\Mail\VerifyAccount;
 use App\Models\User;
@@ -11,6 +12,7 @@ use Illuminate\Auth\Notifications\VerifyEmail;
 use Illuminate\Cache\RateLimiting\Limit;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Gate;
+use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\Notification;
 use Illuminate\Support\Facades\RateLimiter;
 use Illuminate\Support\Facades\URL;
@@ -49,6 +51,8 @@ class AppServiceProvider extends ServiceProvider
 
         Notification::extend('expo', fn ($app) => $app->make(ExpoPushChannel::class));
 
+        Event::listen(\Laravel\Cashier\Events\WebhookReceived::class, GrantCreditsFromStripeWebhook::class);
+
         VerifyEmail::createUrlUsing(function (User $notifiable): string {
             $relativeUrl = URL::temporarySignedRoute(
                 'verification.verify',
diff --git a/app/Services/AiCreditService.php b/app/Services/AiCreditService.php
new file mode 100644
index 0000000..c1ab091
--- /dev/null
+++ b/app/Services/AiCreditService.php
@@ -0,0 +1,142 @@
+<?php
+
+namespace App\Services;
+
+use App\Enums\CreditLedgerEntryType;
+use App\Models\CreditLedgerEntry;
+use App\Models\CreditProduct;
+use App\Models\User;
+use Illuminate\Support\Facades\DB;
+
+class AiCreditService
+{
+    public function consume(User $user, int $credits = 1, ?string $source = null): bool
+    {
+        return DB::transaction(function () use ($credits, $source, $user): bool {
+            $lockedUser = User::query()
+                ->whereKey($user->getKey())
+                ->lockForUpdate()
+                ->firstOrFail();
+
+            if ($lockedUser->ai_credits_balance < $credits) {
+                return false;
+            }
+
+            $lockedUser->decrement('ai_credits_balance', $credits);
+            $lockedUser->refresh();
+
+            $this->record(
+                user: $lockedUser,
+                type: CreditLedgerEntryType::USAGE,
+                credits: -$credits,
+                source: $source,
+            );
+
+            $user->forceFill([
+                'ai_credits_balance' => $lockedUser->ai_credits_balance,
+            ]);
+
+            return true;
+        });
+    }
+
+    public function refund(User $user, int $credits = 1, ?string $source = null): CreditLedgerEntry
+    {
+        return $this->grant(
+            user: $user,
+            credits: $credits,
+            type: CreditLedgerEntryType::REFUND,
+            source: $source,
+        );
+    }
+
+    /**
+     * @param  array<string, mixed>|null  $metadata
+     */
+    public function grant(
+        User $user,
+        int $credits,
+        CreditLedgerEntryType $type,
+        ?CreditProduct $product = null,
+        ?string $source = null,
+        ?string $stripeCheckoutSessionId = null,
+        ?string $stripeInvoiceId = null,
+        ?string $stripePaymentIntentId = null,
+        ?string $stripeSubscriptionId = null,
+        ?array $metadata = null,
+    ): ?CreditLedgerEntry {
+        return DB::transaction(function () use (
+            $credits,
+            $metadata,
+            $product,
+            $source,
+            $stripeCheckoutSessionId,
+            $stripeInvoiceId,
+            $stripePaymentIntentId,
+            $stripeSubscriptionId,
+            $type,
+            $user,
+        ): ?CreditLedgerEntry {
+            if ($source && CreditLedgerEntry::query()->where('source', $source)->exists()) {
+                return null;
+            }
+
+            $lockedUser = User::query()
+                ->whereKey($user->getKey())
+                ->lockForUpdate()
+                ->firstOrFail();
+
+            $lockedUser->increment('ai_credits_balance', $credits);
+            $lockedUser->refresh();
+
+            $entry = $this->record(
+                user: $lockedUser,
+                type: $type,
+                credits: $credits,
+                product: $product,
+                source: $source,
+                stripeCheckoutSessionId: $stripeCheckoutSessionId,
+                stripeInvoiceId: $stripeInvoiceId,
+                stripePaymentIntentId: $stripePaymentIntentId,
+                stripeSubscriptionId: $stripeSubscriptionId,
+                metadata: $metadata,
+            );
+
+            $user->forceFill([
+                'ai_credits_balance' => $lockedUser->ai_credits_balance,
+            ]);
+
+            return $entry;
+        });
+    }
+
+    /**
+     * @param  array<string, mixed>|null  $metadata
+     */
+    private function record(
+        User $user,
+        CreditLedgerEntryType $type,
+        int $credits,
+        ?CreditProduct $product = null,
+        ?string $source = null,
+        ?string $stripeCheckoutSessionId = null,
+        ?string $stripeInvoiceId = null,
+        ?string $stripePaymentIntentId = null,
+        ?string $stripeSubscriptionId = null,
+        ?array $metadata = null,
+    ): CreditLedgerEntry {
+        return CreditLedgerEntry::create([
+            'user_id' => $user->getKey(),
+            'credit_product_id' => $product?->getKey(),
+            'type' => $type,
+            'credits' => $credits,
+            'balance_after' => $user->ai_credits_balance,
+            'source' => $source,
+            'stripe_checkout_session_id' => $stripeCheckoutSessionId,
+            'stripe_invoice_id' => $stripeInvoiceId,
+            'stripe_payment_intent_id' => $stripePaymentIntentId,
+            'stripe_subscription_id' => $stripeSubscriptionId,
+            'metadata' => $metadata,
+        ]);
+    }
+}
diff --git a/app/Services/StripeCreditProductSyncer.php b/app/Services/StripeCreditProductSyncer.php
new file mode 100644
index 0000000..aa94414
--- /dev/null
+++ b/app/Services/StripeCreditProductSyncer.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace App\Services;
+
+use App\Enums\CreditProductType;
+use App\Models\CreditProduct;
+use Laravel\Cashier\Cashier;
+
+class StripeCreditProductSyncer
+{
+    public function sync(CreditProduct $product): CreditProduct
+    {
+        $stripe = Cashier::stripe();
+        $stripeProductId = $product->stripe_product_id;
+
+        if (! $stripeProductId) {
+            $stripeProduct = $stripe->products->create([
+                'name' => $product->name,
+                'description' => $product->description,
+                'metadata' => [
+                    'credit_product_id' => $product->getKey(),
+                    'credits' => (string) $product->credits,
+                    'type' => $product->type->value,
+                ],
+            ]);
+
+            $stripeProductId = $stripeProduct->id;
+        }
+
+        if (! $product->stripe_price_id) {
+            $priceData = [
+                'product' => $stripeProductId,
+                'unit_amount' => $product->amount,
+                'currency' => strtolower($product->currency),
+                'metadata' => [
+                    'credit_product_id' => $product->getKey(),
+                    'credits' => (string) $product->credits,
+                    'type' => $product->type->value,
+                ],
+            ];
+
+            if ($product->type === CreditProductType::MONTHLY) {
+                $priceData['recurring'] = [
+                    'interval' => 'month',
+                ];
+            }
+
+            $stripePrice = $stripe->prices->create($priceData);
+        }
+
+        $product->forceFill([
+            'stripe_product_id' => $stripeProductId,
+            'stripe_price_id' => $product->stripe_price_id ?: $stripePrice->id,
+        ])->save();
+
+        return $product;
+    }
+}
diff --git a/database/migrations/2026_05_27_100000_create_credit_products_and_ledger_entries.php b/database/migrations/2026_05_27_100000_create_credit_products_and_ledger_entries.php
new file mode 100644
index 0000000..6b48ed4
--- /dev/null
+++ b/database/migrations/2026_05_27_100000_create_credit_products_and_ledger_entries.php
@@ -0,0 +1,61 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('users', function (Blueprint $table): void {
+            $table->unsignedInteger('ai_credits_balance')->default(3)->after('trial_ends_at');
+        });
+
+        Schema::create('credit_products', function (Blueprint $table): void {
+            $table->ulid('id')->primary();
+            $table->string('name');
+            $table->text('description')->nullable();
+            $table->string('type', 32);
+            $table->unsignedInteger('credits');
+            $table->unsignedInteger('amount');
+            $table->string('currency', 3)->default('eur');
+            $table->string('stripe_product_id')->nullable()->index();
+            $table->string('stripe_price_id')->nullable()->unique();
+            $table->boolean('is_active')->default(true)->index();
+            $table->unsignedInteger('sort_order')->default(0);
+            $table->timestamps();
+
+            $table->index(['type', 'is_active', 'sort_order']);
+        });
+
+        Schema::create('credit_ledger_entries', function (Blueprint $table): void {
+            $table->ulid('id')->primary();
+            $table->foreignUlid('user_id')->constrained('users')->cascadeOnDelete();
+            $table->foreignUlid('credit_product_id')->nullable()->constrained('credit_products')->nullOnDelete();
+            $table->string('type', 64);
+            $table->integer('credits');
+            $table->unsignedInteger('balance_after');
+            $table->string('source')->nullable()->unique();
+            $table->string('stripe_checkout_session_id')->nullable()->index();
+            $table->string('stripe_invoice_id')->nullable()->index();
+            $table->string('stripe_payment_intent_id')->nullable()->index();
+            $table->string('stripe_subscription_id')->nullable()->index();
+            $table->json('metadata')->nullable();
+            $table->timestamps();
+
+            $table->index(['user_id', 'created_at']);
+            $table->index(['user_id', 'type', 'created_at']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('credit_ledger_entries');
+        Schema::dropIfExists('credit_products');
+
+        Schema::table('users', function (Blueprint $table): void {
+            $table->dropColumn('ai_credits_balance');
+        });
+    }
+};
diff --git a/lang/en/admin.php b/lang/en/admin.php
index 18e9862..837418e 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -67,6 +67,37 @@ return [
             'empty' => '-',
         ],
     ],
+    'credit_products' => [
+        'navigation' => [
+            'label' => 'Credit products',
+            'singular' => 'Credit product',
+            'plural' => 'Credit products',
+        ],
+        'sections' => [
+            'product' => 'Product',
+            'stripe' => 'Stripe',
+        ],
+        'fields' => [
+            'name' => 'Name',
+            'description' => 'Description',
+            'type' => 'Type',
+            'credits' => 'Credits',
+            'amount' => 'Price',
+            'currency' => 'Currency',
+            'stripe_product_id' => 'Stripe product ID',
+            'stripe_price_id' => 'Stripe price ID',
+            'is_active' => 'Active',
+            'sort_order' => 'Order',
+            'created_at' => 'Created at',
+        ],
+        'helpers' => [
+            'amount' => 'Amount in cents, for example 999 for €9.99.',
+        ],
+        'actions' => [
+            'sync_stripe' => 'Create in Stripe',
+            'sync_stripe_success' => 'Stripe product synchronized.',
+        ],
+    ],
     'moderation_cases' => [
         'navigation' => [
             'label' => 'Moderation',
diff --git a/lang/en/api.php b/lang/en/api.php
index aad3be1..4cae823 100644
--- a/lang/en/api.php
+++ b/lang/en/api.php
@@ -26,6 +26,7 @@ return [
     ],
     'meal_image_analysis' => [
         'failed' => 'Unable to analyze the image right now.',
+        'insufficient_credits' => 'You do not have any analysis credits left.',
     ],
     'legal_documents' => [
         'not_found' => 'Legal document not found.',
diff --git a/lang/en/enums.php b/lang/en/enums.php
index 472d6cc..ea4f0ab 100644
--- a/lang/en/enums.php
+++ b/lang/en/enums.php
@@ -49,6 +49,18 @@ return [
         'privacy_policy' => 'Privacy policy',
         'terms' => 'Terms of service',
     ],
+    'credit_product_type' => [
+        'monthly' => 'Monthly',
+        'one_time' => 'Credit pack',
+    ],
+    'credit_ledger_entry_type' => [
+        'free_grant' => 'Free credits',
+        'purchase' => 'Purchase',
+        'subscription_renewal' => 'Renewal',
+        'usage' => 'Usage',
+        'refund' => 'Refund',
+        'adjustment' => 'Adjustment',
+    ],
     'weight_goal' => [
         'lose_weight' => 'Lose weight',
         'maintain_weight' => 'Maintain weight',
diff --git a/lang/fr/admin.php b/lang/fr/admin.php
index 0d30099..f23884e 100644
--- a/lang/fr/admin.php
+++ b/lang/fr/admin.php
@@ -67,6 +67,37 @@ return [
             'empty' => '-',
         ],
     ],
+    'credit_products' => [
+        'navigation' => [
+            'label' => 'Produits de crédits',
+            'singular' => 'Produit de crédits',
+            'plural' => 'Produits de crédits',
+        ],
+        'sections' => [
+            'product' => 'Produit',
+            'stripe' => 'Stripe',
+        ],
+        'fields' => [
+            'name' => 'Nom',
+            'description' => 'Description',
+            'type' => 'Type',
+            'credits' => 'Crédits',
+            'amount' => 'Prix',
+            'currency' => 'Devise',
+            'stripe_product_id' => 'Stripe product ID',
+            'stripe_price_id' => 'Stripe price ID',
+            'is_active' => 'Actif',
+            'sort_order' => 'Ordre',
+            'created_at' => 'Créé le',
+        ],
+        'helpers' => [
+            'amount' => 'Montant en centimes, par exemple 999 pour 9,99 €.',
+        ],
+        'actions' => [
+            'sync_stripe' => 'Créer dans Stripe',
+            'sync_stripe_success' => 'Produit Stripe synchronisé.',
+        ],
+    ],
     'moderation_cases' => [
         'navigation' => [
             'label' => 'Modération',
diff --git a/lang/fr/api.php b/lang/fr/api.php
index f76d6f5..d199cde 100644
--- a/lang/fr/api.php
+++ b/lang/fr/api.php
@@ -26,6 +26,7 @@ return [
     ],
     'meal_image_analysis' => [
         'failed' => "Impossible d'analyser l'image pour le moment.",
+        'insufficient_credits' => "Tu n'as plus de crédits d'analyse.",
     ],
     'legal_documents' => [
         'not_found' => 'Document légal introuvable.',
diff --git a/lang/fr/enums.php b/lang/fr/enums.php
index 0dc30af..8b199a3 100644
--- a/lang/fr/enums.php
+++ b/lang/fr/enums.php
@@ -49,6 +49,18 @@ return [
         'privacy_policy' => 'Politique de confidentialité',
         'terms' => 'Conditions d’utilisation',
     ],
+    'credit_product_type' => [
+        'monthly' => 'Mensuel',
+        'one_time' => 'Pack de crédits',
+    ],
+    'credit_ledger_entry_type' => [
+        'free_grant' => 'Crédits offerts',
+        'purchase' => 'Achat',
+        'subscription_renewal' => 'Renouvellement',
+        'usage' => 'Utilisation',
+        'refund' => 'Remboursement',
+        'adjustment' => 'Ajustement',
+    ],
     'weight_goal' => [
         'lose_weight' => 'Perdre du poids',
         'maintain_weight' => 'Maintenir le poids',
diff --git a/routes/api.php b/routes/api.php
index 6e52671..aaae7a4 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -1,6 +1,7 @@
 <?php
 
 use App\Http\Controllers\AuthController;
+use App\Http\Controllers\BillingController;
 use App\Http\Controllers\DeviceTokenController;
 use App\Http\Controllers\LegalDocumentController;
 use App\Http\Controllers\MealImageAnalysisController;
@@ -56,6 +57,13 @@ Route::middleware(['auth:sanctum', 'verified', 'not_suspended'])->group(function
     Route::delete('device-tokens', [DeviceTokenController::class, 'destroy'])->middleware('throttle:device-token');
 });
 
+// Billing
+Route::middleware(['auth:sanctum', 'verified', 'not_suspended'])->prefix('billing')->group(function (): void {
+    Route::get('products', [BillingController::class, 'products'])->name('billing.products');
+    Route::post('products/{creditProduct}/checkout', [BillingController::class, 'checkout'])->middleware('throttle:account-action')->name('billing.checkout');
+    Route::post('portal', [BillingController::class, 'portal'])->middleware('throttle:account-action')->name('billing.portal');
+});
+
 // Workouts
 Route::middleware(['auth:sanctum', 'verified', 'not_suspended'])->group(function (): void {
     Route::get('workouts/calendar', [WorkoutSessionController::class, 'calendar'])->name('workouts.calendar');
diff --git a/tests/Feature/BillingProductsTest.php b/tests/Feature/BillingProductsTest.php
new file mode 100644
index 0000000..0ba24a7
--- /dev/null
+++ b/tests/Feature/BillingProductsTest.php
@@ -0,0 +1,51 @@
+<?php
+
+use App\Enums\CreditProductType;
+use App\Models\CreditProduct;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Laravel\Sanctum\Sanctum;
+
+uses(RefreshDatabase::class);
+
+it('lists active credit products ordered for the mobile app', function () {
+    Sanctum::actingAs(User::factory()->create());
+
+    CreditProduct::create([
+        'name' => 'Pack 10',
+        'type' => CreditProductType::ONE_TIME,
+        'credits' => 10,
+        'amount' => 499,
+        'currency' => 'eur',
+        'stripe_price_id' => 'price_pack_10',
+        'sort_order' => 20,
+    ]);
+    CreditProduct::create([
+        'name' => 'Mensuel 30',
+        'type' => CreditProductType::MONTHLY,
+        'credits' => 30,
+        'amount' => 999,
+        'currency' => 'eur',
+        'stripe_price_id' => 'price_monthly_30',
+        'sort_order' => 10,
+    ]);
+    CreditProduct::create([
+        'name' => 'Inactive',
+        'type' => CreditProductType::ONE_TIME,
+        'credits' => 5,
+        'amount' => 299,
+        'currency' => 'eur',
+        'stripe_price_id' => 'price_inactive',
+        'is_active' => false,
+    ]);
+
+    $this
+        ->getJson('/api/billing/products')
+        ->assertOk()
+        ->assertJsonCount(2, 'data')
+        ->assertJsonPath('data.0.name', 'Mensuel 30')
+        ->assertJsonPath('data.0.type', CreditProductType::MONTHLY->value)
+        ->assertJsonPath('data.0.credits', 30)
+        ->assertJsonPath('data.0.formattedAmount', '9,99 EUR')
+        ->assertJsonPath('data.1.name', 'Pack 10');
+});
diff --git a/tests/Feature/MealImageAnalysisTest.php b/tests/Feature/MealImageAnalysisTest.php
index caa43a0..64d4158 100644
--- a/tests/Feature/MealImageAnalysisTest.php
+++ b/tests/Feature/MealImageAnalysisTest.php
@@ -3,9 +3,11 @@
 use App\Ai\Agents\MealImageAnalyzer;
 use App\Enums\AiUsageStatus;
 use App\Enums\AiUsageType;
+use App\Enums\CreditLedgerEntryType;
 use App\Enums\IngredientUnit;
 use App\Enums\MealPostType;
 use App\Models\AiUsage;
+use App\Models\CreditLedgerEntry;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Http\UploadedFile;
@@ -64,6 +66,7 @@ it('analyzes a meal image into a draft', function () {
 
     $response
         ->assertOk()
+        ->assertJsonPath('credits.balance', 2)
         ->assertJsonPath('data.title', 'Bowl saumon avocat')
         ->assertJsonPath('data.type', MealPostType::LUNCH->value)
         ->assertJsonPath('data.calories', 612)
@@ -106,6 +109,15 @@ it('analyzes a meal image into a draft', function () {
                 ],
             ],
         ]);
+
+    $user->refresh();
+    $ledgerEntry = CreditLedgerEntry::query()->sole();
+
+    expect($user->ai_credits_balance)->toBe(2)
+        ->and($ledgerEntry->user_id)->toBe($user->id)
+        ->and($ledgerEntry->type)->toBe(CreditLedgerEntryType::USAGE)
+        ->and($ledgerEntry->credits)->toBe(-1)
+        ->and($ledgerEntry->balance_after)->toBe(2);
 });
 
 it('records a failed meal image analysis attempt', function () {
@@ -139,6 +151,34 @@ it('records a failed meal image analysis attempt', function () {
         ])
         ->and($usage->output)->toBeNull()
         ->and($usage->error_message)->toContain('Provider unavailable');
+
+    expect($user->fresh()->ai_credits_balance)->toBe(3);
+});
+
+it('requires available credits to analyze a meal image', function () {
+    $user = User::factory()->create([
+        'ai_credits_balance' => 0,
+    ]);
+
+    Sanctum::actingAs($user);
+
+    MealImageAnalyzer::fake([
+        [
+            'title' => 'Bowl',
+        ],
+    ]);
+
+    $this
+        ->withHeader('Accept', 'application/json')
+        ->post('/api/meal-posts/analyze-image', [
+            'image' => fakeMealAnalysisImage(),
+        ])
+        ->assertStatus(402)
+        ->assertJsonPath('message', __('api.meal_image_analysis.insufficient_credits'))
+        ->assertJsonPath('credits.balance', 0);
+
+    expect(AiUsage::query()->count())->toBe(0)
+        ->and(CreditLedgerEntry::query()->count())->toBe(0);
 });
 
 it('requires authentication to analyze a meal image', function () {