diff --git a/apps/api/src/app/environments-v1/novu-bridge-client.ts b/apps/api/src/app/environments-v1/novu-bridge-client.ts
index 39f8eb3aa7a..ddf123673db 100644
--- a/apps/api/src/app/environments-v1/novu-bridge-client.ts
+++ b/apps/api/src/app/environments-v1/novu-bridge-client.ts
@@ -1,4 +1,11 @@
-import { Inject } from '@nestjs/common';
+import { Inject, NotFoundException } from '@nestjs/common';
+import {
+  GetDecryptedSecretKey,
+  GetDecryptedSecretKeyCommand,
+  InMemoryLRUCacheService,
+  InMemoryLRUCacheStore,
+  PinoLogger,
+} from '@novu/application-generic';
 import { PostActionEnum, type Workflow } from '@novu/framework/internal';
 import { Client, NovuHandler, NovuRequestHandler } from '@novu/framework/nest';
 import { EnvironmentTypeEnum } from '@novu/shared';
@@ -18,10 +25,23 @@ export const frameworkName = 'novu-nest';
 export class NovuBridgeClient {
   constructor(
     @Inject(NovuHandler) private novuHandler: NovuHandler,
-    private constructFrameworkWorkflow: ConstructFrameworkWorkflow
+    private constructFrameworkWorkflow: ConstructFrameworkWorkflow,
+    private getDecryptedSecretKey: GetDecryptedSecretKey,
+    private inMemoryLRUCacheService: InMemoryLRUCacheService,
+    private logger: PinoLogger
   ) {}
 
   public async handleRequest(req: Request, res: Response) {
+    const environmentId = req.params.environmentId;
+    if (!environmentId || !String(environmentId).trim()) {
+      res.status(400).json({
+        error: 'Missing or invalid environmentId',
+        details: 'The bridge route requires a non-empty environmentId path parameter.',
+      });
+
+      return;
+    }
+
     const workflows: Workflow[] = [];
 
     /*
@@ -32,7 +52,7 @@ export class NovuBridgeClient {
     if (Object.values(PostActionEnum).includes(req.query.action as PostActionEnum)) {
       const programmaticallyConstructedWorkflow = await this.constructFrameworkWorkflow.execute(
         ConstructFrameworkWorkflowCommand.create({
-          environmentId: req.params.environmentId,
+          environmentId,
           workflowId: req.query.workflowId as string,
           layoutId: req.query.layoutId as string,
           controlValues: req.body.controls,
@@ -46,13 +66,76 @@ export class NovuBridgeClient {
       workflows.push(programmaticallyConstructedWorkflow);
     }
 
+    const cacheKey = `bridge-secret-key:${environmentId}`;
+    const storeName = InMemoryLRUCacheStore.VALIDATOR;
+
+    let secretKey: string;
+    try {
+      const resolved = await this.inMemoryLRUCacheService.get(
+        storeName,
+        cacheKey,
+        () =>
+          this.getDecryptedSecretKey.execute(
+            GetDecryptedSecretKeyCommand.create({
+              environmentId,
+            })
+          ),
+        {
+          environmentId,
+          cacheVariant: 'bridge-secret-key',
+        }
+      );
+
+      if (typeof resolved !== 'string' || !resolved.trim()) {
+        this.logger.error(
+          `Bridge secret key missing or invalid after cache lookup (store=${storeName}, cacheKey=${cacheKey}, environmentId=${environmentId})`
+        );
+        res.status(500).json({
+          error: 'Failed to resolve environment secret key',
+          details: `Empty or invalid secret from ${storeName} for cache key ${cacheKey}.`,
+        });
+
+        return;
+      }
+
+      secretKey = resolved;
+    } catch (error) {
+      if (error instanceof NotFoundException) {
+        this.logger.warn(
+          `Environment not found for bridge secret (store=${storeName}, cacheKey=${cacheKey}): ${error.message}`
+        );
+        res.status(404).json({
+          error: 'Environment not found',
+          details: `No environment for cache key ${cacheKey} (${storeName}).`,
+        });
+
+        return;
+      }
+
+      this.logger.error(
+        { err: error },
+        `Failed to resolve bridge secret key (store=${storeName}, cacheKey=${cacheKey}, environmentId=${environmentId})`
+      );
+      res.status(500).json({
+        error: 'Failed to resolve environment secret key',
+        details: `Unexpected error while loading secret via ${storeName} for cache key ${cacheKey}.`,
+      });
+
+      return;
+    }
+
     const novuRequestHandler = new NovuRequestHandler({
       frameworkName,
       workflows,
-      client: new Client({ secretKey: 'INTERNAL_KEY', strictAuthentication: false, verbose: false }),
+      client: new Client({ secretKey, strictAuthentication: true, verbose: false }),
       handler: this.novuHandler.handler,
     });
 
-    await novuRequestHandler.createHandler()(req as any, res as any);
+    const bridgeHandler = novuRequestHandler.createHandler() as (
+      request: Request,
+      response: Response
+    ) => void | Promise<void>;
+
+    await bridgeHandler(req, res);
   }
 }
diff --git a/apps/api/src/app/environments-v1/novu-bridge.module.ts b/apps/api/src/app/environments-v1/novu-bridge.module.ts
index 02e654f8724..6587218e974 100644
--- a/apps/api/src/app/environments-v1/novu-bridge.module.ts
+++ b/apps/api/src/app/environments-v1/novu-bridge.module.ts
@@ -25,6 +25,7 @@ import {
 } from '@novu/dal';
 import { NovuClient, NovuHandler } from '@novu/framework/nest';
 import { GetOrganizationSettings } from '../organization/usecases/get-organization-settings/get-organization-settings.usecase';
+import { SharedModule } from '../shared/shared.module';
 import { NovuBridgeController } from './novu-bridge.controller';
 import { NovuBridgeClient } from './novu-bridge-client';
 import { ConstructFrameworkWorkflow } from './usecases/construct-framework-workflow';
@@ -50,6 +51,7 @@ export const featureFlagsService = {
 };
 
 @Module({
+  imports: [SharedModule],
   controllers: [NovuBridgeController],
   providers: [
     {