diff --git a/package-lock.json b/package-lock.json
index 95bfdf39..09f0c344 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "copyfiles": "^2.4.1",
         "express": "^5",
         "mongoose": "^8.9.2",
-        "warframe-public-export-plus": "^0.5.19",
+        "warframe-public-export-plus": "^0.5.21",
         "warframe-riven-info": "^0.1.2",
         "winston": "^3.17.0",
         "winston-daily-rotate-file": "^5.0.0"
@@ -3778,9 +3778,9 @@
       }
     },
     "node_modules/warframe-public-export-plus": {
-      "version": "0.5.19",
-      "resolved": "https://registry.npmjs.org/warframe-public-export-plus/-/warframe-public-export-plus-0.5.19.tgz",
-      "integrity": "sha512-ERCPAe4ojJXts6tyNPBvNsFcgAwJuV3M04iDfXhudJfpJrg0qseDO4AExjSyFo+WUvKoWROMCy9dCRzxIbNATw=="
+      "version": "0.5.21",
+      "resolved": "https://registry.npmjs.org/warframe-public-export-plus/-/warframe-public-export-plus-0.5.21.tgz",
+      "integrity": "sha512-06k63L99wfX+lPx7ReYzGiMK/7NtNEiO97r+kemrtn4QIEKCfvBvmKiJcYbkSo79x35CQ+6FQfMtDilf6DGz6Q=="
     },
     "node_modules/warframe-riven-info": {
       "version": "0.1.2",
diff --git a/package.json b/package.json
index 4f789119..b241a343 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "copyfiles": "^2.4.1",
     "express": "^5",
     "mongoose": "^8.9.2",
-    "warframe-public-export-plus": "^0.5.19",
+    "warframe-public-export-plus": "^0.5.21",
     "warframe-riven-info": "^0.1.2",
     "winston": "^3.17.0",
     "winston-daily-rotate-file": "^5.0.0"
diff --git a/src/controllers/api/activateRandomModController.ts b/src/controllers/api/activateRandomModController.ts
new file mode 100644
index 00000000..a0ef4745
--- /dev/null
+++ b/src/controllers/api/activateRandomModController.ts
@@ -0,0 +1,98 @@
+import { getJSONfromString } from "@/src/helpers/stringHelpers";
+import { addMods, getInventory } from "@/src/services/inventoryService";
+import { getAccountIdForRequest } from "@/src/services/loginService";
+import { getRandomElement, getRandomInt, getRandomReward, IRngResult } from "@/src/services/rngService";
+import { logger } from "@/src/utils/logger";
+import { RequestHandler } from "express";
+import { ExportUpgrades } from "warframe-public-export-plus";
+
+export const activateRandomModController: RequestHandler = async (req, res) => {
+    const accountId = await getAccountIdForRequest(req);
+    const inventory = await getInventory(accountId);
+    const request = getJSONfromString(String(req.body)) as IActiveRandomModRequest;
+    addMods(inventory, [
+        {
+            ItemType: request.ItemType,
+            ItemCount: -1
+        }
+    ]);
+    const rivenType = getRandomElement(rivenRawToRealWeighted[request.ItemType]);
+    const challenge = getRandomElement(ExportUpgrades[rivenType].availableChallenges!);
+    const fingerprintChallenge: IRandomModChallenge = {
+        Type: challenge.fullName,
+        Progress: 0,
+        Required: getRandomInt(challenge.countRange[0], challenge.countRange[1])
+    };
+    if (Math.random() < challenge.complicationChance) {
+        const complicationsAsRngResults: IRngResult[] = [];
+        for (const complication of challenge.complications) {
+            complicationsAsRngResults.push({
+                type: complication.fullName,
+                itemCount: 1,
+                probability: complication.weight
+            });
+        }
+        fingerprintChallenge.Complication = getRandomReward(complicationsAsRngResults)!.type;
+        logger.debug(
+            `riven rolled challenge ${fingerprintChallenge.Type} with complication ${fingerprintChallenge.Complication}`
+        );
+        const complication = challenge.complications.find(x => x.fullName == fingerprintChallenge.Complication)!;
+        fingerprintChallenge.Required *= complication.countMultiplier;
+    } else {
+        logger.debug(`riven rolled challenge ${fingerprintChallenge.Type}`);
+    }
+    const upgradeIndex =
+        inventory.Upgrades.push({
+            ItemType: rivenType,
+            UpgradeFingerprint: JSON.stringify({ challenge: fingerprintChallenge })
+        }) - 1;
+    await inventory.save();
+    res.json({
+        NewMod: inventory.Upgrades[upgradeIndex].toJSON()
+    });
+};
+
+interface IActiveRandomModRequest {
+    ItemType: string;
+}
+
+interface IRandomModChallenge {
+    Type: string;
+    Progress: number;
+    Required: number;
+    Complication?: string;
+}
+
+const rivenRawToRealWeighted: Record<string, string[]> = {
+    "/Lotus/Upgrades/Mods/Randomized/RawArchgunRandomMod": [
+        "/Lotus/Upgrades/Mods/Randomized/LotusArchgunRandomModRare"
+    ],
+    "/Lotus/Upgrades/Mods/Randomized/RawMeleeRandomMod": [
+        "/Lotus/Upgrades/Mods/Randomized/PlayerMeleeWeaponRandomModRare"
+    ],
+    "/Lotus/Upgrades/Mods/Randomized/RawModularMeleeRandomMod": [
+        "/Lotus/Upgrades/Mods/Randomized/LotusModularMeleeRandomModRare"
+    ],
+    "/Lotus/Upgrades/Mods/Randomized/RawModularPistolRandomMod": [
+        "/Lotus/Upgrades/Mods/Randomized/LotusModularPistolRandomModRare"
+    ],
+    "/Lotus/Upgrades/Mods/Randomized/RawPistolRandomMod": ["/Lotus/Upgrades/Mods/Randomized/LotusPistolRandomModRare"],
+    "/Lotus/Upgrades/Mods/Randomized/RawRifleRandomMod": ["/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare"],
+    "/Lotus/Upgrades/Mods/Randomized/RawShotgunRandomMod": [
+        "/Lotus/Upgrades/Mods/Randomized/LotusShotgunRandomModRare"
+    ],
+    "/Lotus/Upgrades/Mods/Randomized/RawSentinelWeaponRandomMod": [
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusRifleRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusShotgunRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/LotusPistolRandomModRare",
+        "/Lotus/Upgrades/Mods/Randomized/PlayerMeleeWeaponRandomModRare"
+    ]
+};
diff --git a/src/routes/api.ts b/src/routes/api.ts
index 4194f44c..bdefaac8 100644
--- a/src/routes/api.ts
+++ b/src/routes/api.ts
@@ -1,4 +1,5 @@
 import express from "express";
+import { activateRandomModController } from "@/src/controllers/api/activateRandomModController";
 import { addFriendImageController } from "@/src/controllers/api/addFriendImageController";
 import { arcaneCommonController } from "@/src/controllers/api/arcaneCommonController";
 import { artifactsController } from "../controllers/api/artifactsController";
@@ -107,6 +108,7 @@ apiRouter.get("/surveys.php", surveysController);
 apiRouter.get("/updateSession.php", updateSessionGetController);
 
 // post
+apiRouter.post("/activateRandomMod.php", activateRandomModController);
 apiRouter.post("/addFriendImage.php", addFriendImageController);
 apiRouter.post("/arcaneCommon.php", arcaneCommonController);
 apiRouter.post("/artifacts.php", artifactsController);
diff --git a/src/services/rngService.ts b/src/services/rngService.ts
index fad3a4ff..df235860 100644
--- a/src/services/rngService.ts
+++ b/src/services/rngService.ts
@@ -6,6 +6,18 @@ export interface IRngResult {
     probability: number;
 }
 
+export const getRandomElement = <T>(arr: T[]): T => {
+    return arr[Math.floor(Math.random() * arr.length)];
+};
+
+// Returns a random integer between min (inclusive) and max (inclusive).
+// https://stackoverflow.com/a/1527820
+export const getRandomInt = (min: number, max: number): number => {
+    min = Math.ceil(min);
+    max = Math.floor(max);
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+};
+
 export const getRandomReward = (pool: IRngResult[]): IRngResult | undefined => {
     if (pool.length == 0) return;