diff --git a/apps/api/src/routes/v1/graphql/lib.ts b/apps/api/src/routes/v1/graphql/lib.ts
index a643400a..a73f6e2a 100644
--- a/apps/api/src/routes/v1/graphql/lib.ts
+++ b/apps/api/src/routes/v1/graphql/lib.ts
@@ -1,6 +1,5 @@
 import type { BaseContext, HTTPGraphQLResponse } from "@apollo/server";
 import type { IFieldResolver } from "@graphql-tools/utils";
-import { isErrorResponse } from "@peterportal-api/types";
 import type { RawResponse } from "@peterportal-api/types";
 import { GraphQLError } from "graphql/error";
 
@@ -58,7 +57,7 @@ export const proxyRestApi =
         };
       });
 
-    if (isErrorResponse(data)) {
+    if (!data.success) {
       throw new GraphQLError(data.message, {
         extensions: {
           code: data.error.toUpperCase().replace(" ", "_"),
diff --git a/libs/lambda/src/response.ts b/libs/lambda/src/response.ts
index a4e90d62..3038f91d 100644
--- a/libs/lambda/src/response.ts
+++ b/libs/lambda/src/response.ts
@@ -47,7 +47,7 @@ export function createOKResult<T>(
 ): APIGatewayProxyResult {
   const statusCode = 200;
   const timestamp = createTimestamp();
-  const response: Response<T> = { statusCode, timestamp, requestId, payload };
+  const response: Response<T> = { statusCode, timestamp, requestId, payload, success: true };
   const headers = { ...responseHeaders };
 
   try {
@@ -89,12 +89,12 @@ export function createErrorResult(
     e instanceof Error
       ? `${e.name}: ${e.message}`
       : typeof e === "string"
-      ? e
-      : "An unknown error has occurred. Please try again.";
+        ? e
+        : "An unknown error has occurred. Please try again.";
 
   const error = httpErrorCodes[statusCode as keyof typeof httpErrorCodes];
 
-  const body: ErrorResponse = { timestamp, requestId, statusCode, error, message };
+  const body: ErrorResponse = { timestamp, requestId, statusCode, error, message, success: false };
 
   logger.error(`${body.statusCode} ${body.error}: ${body.message}`);
 
diff --git a/package.json b/package.json
index 6f07a567..99c02082 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,6 @@
   },
   "packageManager": "pnpm@8.14.3",
   "engines": {
-    "node": "20",
     "pnpm": "8"
   }
 }
diff --git a/packages/types/types/response.ts b/packages/types/types/response.ts
index 21814103..7cbf0df5 100644
--- a/packages/types/types/response.ts
+++ b/packages/types/types/response.ts
@@ -25,6 +25,8 @@ export type Response<T> = BaseResponse & {
    * The payload returned by the REST API.
    */
   payload: T;
+
+  success: true;
 };
 
 /**
@@ -39,6 +41,8 @@ export type ErrorResponse = BaseResponse & {
    * The detailed error message.
    */
   message: string;
+
+  success: false;
 };
 
 /**
@@ -54,4 +58,4 @@ export type RawResponse<T> = Response<T> | ErrorResponse;
  * ``ErrorResponse`` or a ``Response<T>``.
  * @param r The object to test.
  */
-export const isErrorResponse = <T>(r: RawResponse<T>): r is ErrorResponse => "error" in r;
+export const isErrorResponse = <T>(r: RawResponse<T>): r is ErrorResponse => r.success == false;
diff --git a/packages/websoc-fuzzy-search/setup.ts b/packages/websoc-fuzzy-search/setup.ts
index 358782dc..991204c7 100644
--- a/packages/websoc-fuzzy-search/setup.ts
+++ b/packages/websoc-fuzzy-search/setup.ts
@@ -2,7 +2,6 @@ import { existsSync, mkdirSync, readFileSync, writeFileSync } from "node:fs";
 import { normalize } from "node:path";
 import { gzipSync } from "node:zlib";
 
-import { isErrorResponse } from "@peterportal-api/types";
 import type { Course, Instructor, RawResponse } from "@peterportal-api/types";
 import fetch from "cross-fetch";
 import pluralize from "pluralize";
@@ -219,7 +218,7 @@ async function main() {
   console.time("Data fetched in");
   const coursesRes = await fetch("https://api-next.peterportal.org/v1/rest/courses/all");
   const coursesJson: RawResponse<Course[]> = await coursesRes.json();
-  if (isErrorResponse(coursesJson)) throw new Error("Could not fetch courses from API.");
+  if (!coursesJson.success) throw new Error("Could not fetch courses from API.");
   coursesJson.payload.forEach(
     ({ id, department, departmentName, courseNumber, geList, courseLevel, school, title }) => {
       d.courses[id] = {
@@ -235,7 +234,7 @@ async function main() {
   );
   const instructorsRes = await fetch("https://api-next.peterportal.org/v1/rest/instructors/all");
   const instructorsJson: RawResponse<Instructor[]> = await instructorsRes.json();
-  if (isErrorResponse(instructorsJson)) throw new Error("Could not fetch instructors from API.");
+  if (!instructorsJson.success) throw new Error("Could not fetch instructors from API.");
   instructorsJson.payload.forEach(({ ucinetid, shortenedName, name, schools, department }) => {
     d.instructors[ucinetid] = {
       ucinetid,