diff --git a/apps/web/server/routers/viewer/eventTypes.tsx b/apps/web/server/routers/viewer/eventTypes.tsx
index dd165ced..bbc2822a 100644
--- a/apps/web/server/routers/viewer/eventTypes.tsx
+++ b/apps/web/server/routers/viewer/eventTypes.tsx
@@ -3,12 +3,8 @@ import short from "short-uuid";
 import { v5 as uuidv5 } from "uuid";
 import { z } from "zod";
 
-import {
-  _AvailabilityModel,
-  _DestinationCalendarModel,
-  _EventTypeCustomInputModel,
-  _EventTypeModel,
-} from "@calcom/prisma/zod";
+import getAppKeysFromSlug from "@calcom/app-store/_utils/getAppKeysFromSlug";
+import { _DestinationCalendarModel, _EventTypeCustomInputModel, _EventTypeModel } from "@calcom/prisma/zod";
 import { stringOrNumber } from "@calcom/prisma/zod-utils";
 import { createEventTypeInput } from "@calcom/prisma/zod/custom/eventtype";
 
@@ -128,7 +124,8 @@ export const eventTypesRouter = createProtectedRouter()
         },
       };
 
-      if (process.env.DAILY_API_KEY) {
+      const appKeys = await getAppKeysFromSlug("dailyvideo");
+      if (typeof appKeys.api_key === "string") {
         data.locations = [{ type: "integrations:daily" }];
       }
 
diff --git a/packages/app-store/tandemvideo/_metadata.ts b/packages/app-store/tandemvideo/_metadata.ts
index 6cb4d6d2..9e1239cf 100644
--- a/packages/app-store/tandemvideo/_metadata.ts
+++ b/packages/app-store/tandemvideo/_metadata.ts
@@ -6,7 +6,6 @@ import _package from "./package.json";
 export const metadata = {
   name: "Tandem Video",
   description: _package.description,
-  installed: !!(process.env.TANDEM_CLIENT_ID && process.env.TANDEM_CLIENT_SECRET),
   type: "tandem_video",
   title: "Tandem Video",
   imageSrc: "/api/app-store/tandemvideo/icon.svg",
diff --git a/packages/app-store/tandemvideo/api/add.ts b/packages/app-store/tandemvideo/api/add.ts
index 9db60951..bd73bdb2 100644
--- a/packages/app-store/tandemvideo/api/add.ts
+++ b/packages/app-store/tandemvideo/api/add.ts
@@ -1,11 +1,13 @@
 import type { NextApiRequest, NextApiResponse } from "next";
 import { stringify } from "querystring";
 
-import { BASE_URL } from "@calcom/lib/constants";
+import { WEBAPP_URL } from "@calcom/lib/constants";
 import prisma from "@calcom/prisma";
 
-const client_id = process.env.TANDEM_CLIENT_ID;
-const TANDEM_BASE_URL = process.env.TANDEM_BASE_URL;
+import getAppKeysFromSlug from "../../_utils/getAppKeysFromSlug";
+
+let client_id = "";
+let base_url = "";
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
   if (req.method === "GET") {
@@ -20,14 +22,20 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
       },
     });
 
-    const redirect_uri = encodeURI(BASE_URL + "/api/integrations/tandemvideo/callback");
+    const appKeys = await getAppKeysFromSlug("tandem");
+    if (typeof appKeys.client_id === "string") client_id = appKeys.client_id;
+    if (typeof appKeys.base_url === "string") base_url = appKeys.base_url;
+    if (!client_id) return res.status(400).json({ message: "Tandem client_id missing." });
+    if (!base_url) return res.status(400).json({ message: "Tandem base_url missing." });
+
+    const redirect_uri = encodeURI(WEBAPP_URL + "/api/integrations/tandemvideo/callback");
 
     const params = {
       client_id,
       redirect_uri,
     };
     const query = stringify(params);
-    const url = `${TANDEM_BASE_URL}/oauth/approval?${query}`;
+    const url = `${base_url}/oauth/approval?${query}`;
     res.status(200).json({ url });
   }
 }
diff --git a/packages/app-store/tandemvideo/api/callback.ts b/packages/app-store/tandemvideo/api/callback.ts
index 9df4dabe..66c2a701 100644
--- a/packages/app-store/tandemvideo/api/callback.ts
+++ b/packages/app-store/tandemvideo/api/callback.ts
@@ -2,9 +2,11 @@ import type { NextApiRequest, NextApiResponse } from "next";
 
 import prisma from "@calcom/prisma";
 
-const client_id = process.env.TANDEM_CLIENT_ID as string;
-const client_secret = process.env.TANDEM_CLIENT_SECRET as string;
-const TANDEM_BASE_URL = (process.env.TANDEM_BASE_URL as string) || "https://tandem.chat";
+import getAppKeysFromSlug from "../../_utils/getAppKeysFromSlug";
+
+let client_id = "";
+let client_secret = "";
+let base_url = "https://tandem.chat";
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
   if (!req.query.code) {
@@ -14,7 +16,15 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
 
   const code = req.query.code as string;
 
-  const result = await fetch(`${TANDEM_BASE_URL}/api/v1/oauth/v2/token`, {
+  const appKeys = await getAppKeysFromSlug("tandem");
+  if (typeof appKeys.client_id === "string") client_id = appKeys.client_id;
+  if (typeof appKeys.client_secret === "string") client_secret = appKeys.client_secret;
+  if (typeof appKeys.base_url === "string") base_url = appKeys.base_url;
+  if (!client_id) return res.status(400).json({ message: "Tandem client_id missing." });
+  if (!client_secret) return res.status(400).json({ message: "Tandem client_secret missing." });
+  if (!base_url) return res.status(400).json({ message: "Tandem base_url missing." });
+
+  const result = await fetch(`${base_url}/api/v1/oauth/v2/token`, {
     method: "POST",
     headers: {
       "Content-Type": "application/json",
@@ -37,6 +47,7 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
           create: {
             type: "tandem_video",
             key: responseBody,
+            appId: "tandem",
           },
         },
       },
diff --git a/packages/app-store/tandemvideo/lib/VideoApiAdapter.ts b/packages/app-store/tandemvideo/lib/VideoApiAdapter.ts
index 47e6f7d8..3b489f4e 100644
--- a/packages/app-store/tandemvideo/lib/VideoApiAdapter.ts
+++ b/packages/app-store/tandemvideo/lib/VideoApiAdapter.ts
@@ -1,11 +1,14 @@
 import { Credential } from "@prisma/client";
 
 import { handleErrorsJson, handleErrorsRaw } from "@calcom/lib/errors";
+import { HttpError } from "@calcom/lib/http-error";
 import prisma from "@calcom/prisma";
 import type { CalendarEvent } from "@calcom/types/Calendar";
 import type { PartialReference } from "@calcom/types/EventManager";
 import type { VideoApiAdapter, VideoCallData } from "@calcom/types/VideoApiAdapter";
 
+import getAppKeysFromSlug from "../../_utils/getAppKeysFromSlug";
+
 interface TandemToken {
   expires_in?: number;
   expiry_date: number;
@@ -14,16 +17,24 @@ interface TandemToken {
   access_token: string;
 }
 
-const client_id = process.env.TANDEM_CLIENT_ID as string;
-const client_secret = process.env.TANDEM_CLIENT_SECRET as string;
-const TANDEM_BASE_URL = process.env.TANDEM_BASE_URL as string;
+let client_id = "";
+let client_secret = "";
+let base_url = "";
+
+const tandemAuth = async (credential: Credential) => {
+  const appKeys = await getAppKeysFromSlug("tandem");
+  if (typeof appKeys.client_id === "string") client_id = appKeys.client_id;
+  if (typeof appKeys.client_secret === "string") client_secret = appKeys.client_secret;
+  if (typeof appKeys.base_url === "string") base_url = appKeys.base_url;
+  if (!client_id) throw new HttpError({ statusCode: 400, message: "Tandem client_id missing." });
+  if (!client_secret) throw new HttpError({ statusCode: 400, message: "Tandem client_secret missing." });
+  if (!base_url) throw new HttpError({ statusCode: 400, message: "Tandem base_url missing." });
 
-const tandemAuth = (credential: Credential) => {
   const credentialKey = credential.key as unknown as TandemToken;
   const isTokenValid = (token: TandemToken) => token && token.access_token && token.expiry_date < Date.now();
 
   const refreshAccessToken = (refreshToken: string) => {
-    fetch(`${TANDEM_BASE_URL}/api/v1/oauth/v2/token`, {
+    fetch(`${base_url}/api/v1/oauth/v2/token`, {
       method: "POST",
       body: new URLSearchParams({
         client_id,
@@ -95,9 +106,9 @@ const TandemVideoApiAdapter = (credential: Credential): VideoApiAdapter => {
       return Promise.resolve([]);
     },
     createMeeting: async (event: CalendarEvent): Promise<VideoCallData> => {
-      const accessToken = await auth.getToken();
+      const accessToken = await (await auth).getToken();
 
-      const result = await fetch(`${TANDEM_BASE_URL}/api/v1/meetings`, {
+      const result = await fetch(`${base_url}/api/v1/meetings`, {
         method: "POST",
         headers: {
           Authorization: "Bearer " + accessToken,
@@ -110,9 +121,9 @@ const TandemVideoApiAdapter = (credential: Credential): VideoApiAdapter => {
     },
 
     deleteMeeting: async (uid: string): Promise<void> => {
-      const accessToken = await auth.getToken();
+      const accessToken = await (await auth).getToken();
 
-      await fetch(`${TANDEM_BASE_URL}/api/v1/meetings/${uid}`, {
+      await fetch(`${base_url}/api/v1/meetings/${uid}`, {
         method: "DELETE",
         headers: {
           Authorization: "Bearer " + accessToken,
@@ -123,9 +134,9 @@ const TandemVideoApiAdapter = (credential: Credential): VideoApiAdapter => {
     },
 
     updateMeeting: async (bookingRef: PartialReference, event: CalendarEvent): Promise<VideoCallData> => {
-      const accessToken = await auth.getToken();
+      const accessToken = await (await auth).getToken();
 
-      const result = await fetch(`${TANDEM_BASE_URL}/api/v1/meetings/${bookingRef.meetingId}`, {
+      const result = await fetch(`${base_url}/api/v1/meetings/${bookingRef.meetingId}`, {
         method: "PUT",
         headers: {
           Authorization: "Bearer " + accessToken,