diff --git a/packages/api-server/src/routes/ebay.ts b/packages/api-server/src/routes/ebay.ts
index 17540df..0dc04db 100644
--- a/packages/api-server/src/routes/ebay.ts
+++ b/packages/api-server/src/routes/ebay.ts
@@ -37,17 +37,34 @@ export async function ebayRoute(req: Request): Promise<Response> {
 
     const maxItemsParam = reqUrl.searchParams.get("maxItems");
     const maxItems = maxItemsParam ? parseInt(maxItemsParam, 10) : undefined;
-    const items = await fetchEbayItems(SEARCH_QUERY, 1, {
-      minPrice,
-      maxPrice,
-      strictMode,
-      exclusions,
-      keywords,
-      buyItNowOnly,
-      canadaOnly,
-    });
+    const hideUnstableResults =
+      reqUrl.searchParams.get("unstableFilter") === "true";
+    const items = hideUnstableResults
+      ? await fetchEbayItems(
+          SEARCH_QUERY,
+          1,
+          {
+            minPrice,
+            maxPrice,
+            strictMode,
+            exclusions,
+            keywords,
+            buyItNowOnly,
+            canadaOnly,
+          },
+          { hideUnstableResults: true },
+        )
+      : await fetchEbayItems(SEARCH_QUERY, 1, {
+          minPrice,
+          maxPrice,
+          strictMode,
+          exclusions,
+          keywords,
+          buyItNowOnly,
+          canadaOnly,
+        });
 
-    const results = maxItems ? items.slice(0, maxItems) : items;
+    const results = hideUnstableResults || !maxItems ? items : items.slice(0, maxItems);
 
     if (!results || results.length === 0)
       return Response.json(
diff --git a/packages/api-server/src/routes/facebook.ts b/packages/api-server/src/routes/facebook.ts
index 048cd90..6038a27 100644
--- a/packages/api-server/src/routes/facebook.ts
+++ b/packages/api-server/src/routes/facebook.ts
@@ -20,9 +20,15 @@ export async function facebookRoute(req: Request): Promise<Response> {
   const LOCATION = reqUrl.searchParams.get("location") || "toronto";
   const maxItemsParam = reqUrl.searchParams.get("maxItems");
   const maxItems = maxItemsParam ? parseInt(maxItemsParam, 10) : 25;
+  const hideUnstableResults =
+    reqUrl.searchParams.get("unstableFilter") === "true";
 
   try {
-    const items = await fetchFacebookItems(SEARCH_QUERY, 1, LOCATION, maxItems);
+    const items = hideUnstableResults
+      ? await fetchFacebookItems(SEARCH_QUERY, 1, LOCATION, maxItems, {
+          hideUnstableResults: true,
+        })
+      : await fetchFacebookItems(SEARCH_QUERY, 1, LOCATION, maxItems);
     if (!items || items.length === 0)
       return Response.json(
         { message: "Search didn't return any results!" },
diff --git a/packages/api-server/src/routes/kijiji.ts b/packages/api-server/src/routes/kijiji.ts
index 6b8ea18..a51302b 100644
--- a/packages/api-server/src/routes/kijiji.ts
+++ b/packages/api-server/src/routes/kijiji.ts
@@ -23,6 +23,8 @@ export async function kijijiRoute(req: Request): Promise<Response> {
   const priceMin = priceMinParam ? parseInt(priceMinParam, 10) : undefined;
   const priceMaxParam = reqUrl.searchParams.get("priceMax");
   const priceMax = priceMaxParam ? parseInt(priceMaxParam, 10) : undefined;
+  const hideUnstableResults =
+    reqUrl.searchParams.get("unstableFilter") === "true";
 
   const searchOptions = {
     location: reqUrl.searchParams.get("location") || undefined,
@@ -45,13 +47,22 @@ export async function kijijiRoute(req: Request): Promise<Response> {
   };
 
   try {
-    const items = await fetchKijijiItems(
-      SEARCH_QUERY,
-      4, // 4 requests per second for faster scraping
-      "https://www.kijiji.ca",
-      searchOptions,
-      {},
-    );
+    const items = hideUnstableResults
+      ? await fetchKijijiItems(
+          SEARCH_QUERY,
+          4, // 4 requests per second for faster scraping
+          "https://www.kijiji.ca",
+          searchOptions,
+          {},
+          { hideUnstableResults: true },
+        )
+      : await fetchKijijiItems(
+          SEARCH_QUERY,
+          4, // 4 requests per second for faster scraping
+          "https://www.kijiji.ca",
+          searchOptions,
+          {},
+        );
     if (!items)
       return Response.json(
         { message: "Search didn't return any results!" },
diff --git a/packages/api-server/test/routes.test.ts b/packages/api-server/test/routes.test.ts
index e6b54a6..0d7f807 100644
--- a/packages/api-server/test/routes.test.ts
+++ b/packages/api-server/test/routes.test.ts
@@ -2,10 +2,12 @@ import { afterEach, beforeEach, describe, expect, mock, test } from "bun:test";
 
 const fetchFacebookItems = mock(() => Promise.resolve([{ title: "item" }]));
 const fetchEbayItems = mock(() => Promise.resolve([{ title: "item" }]));
+const fetchKijijiItems = mock(() => Promise.resolve([{ title: "item" }]));
 
 mock.module("@marketplace-scrapers/core", () => ({
   fetchFacebookItems,
   fetchEbayItems,
+  fetchKijijiItems,
 }));
 
 describe("API routes", () => {
@@ -18,11 +20,16 @@ describe("API routes", () => {
     fetchEbayItems.mockImplementation(() =>
       Promise.resolve([{ title: "item" }]),
     );
+    fetchKijijiItems.mockReset();
+    fetchKijijiItems.mockImplementation(() =>
+      Promise.resolve([{ title: "item" }]),
+    );
   });
 
   afterEach(() => {
     fetchFacebookItems.mockClear();
     fetchEbayItems.mockClear();
+    fetchKijijiItems.mockClear();
   });
 
   test("facebookRoute ignores cookies query parameter", async () => {
@@ -56,4 +63,99 @@ describe("API routes", () => {
       canadaOnly: true,
     });
   });
+
+  test("kijijiRoute ignores cookies query parameter", async () => {
+    const { kijijiRoute } = await import("../src/routes/kijiji");
+
+    await kijijiRoute(
+      new Request(
+        "http://localhost/api/kijiji?q=laptop&cookies=s%3D1&maxPages=3",
+      ),
+    );
+
+    expect(fetchKijijiItems).toHaveBeenCalledWith(
+      "laptop",
+      4,
+      "https://www.kijiji.ca",
+      {
+        location: undefined,
+        category: undefined,
+        keywords: undefined,
+        sortBy: null,
+        sortOrder: null,
+        maxPages: 3,
+        priceMin: undefined,
+        priceMax: undefined,
+        cookies: "s=1",
+      },
+      {},
+    );
+  });
+
+  test("facebookRoute forwards unstableFilter=true to core", async () => {
+    const { facebookRoute } = await import("../src/routes/facebook");
+
+    await facebookRoute(
+      new Request(
+        "http://localhost/api/facebook?q=laptop&location=toronto&maxItems=3&unstableFilter=true",
+      ),
+    );
+
+    expect(fetchFacebookItems).toHaveBeenCalledWith("laptop", 1, "toronto", 3, {
+      hideUnstableResults: true,
+    });
+  });
+
+  test("ebayRoute forwards unstableFilter=true to core", async () => {
+    const { ebayRoute } = await import("../src/routes/ebay");
+
+    await ebayRoute(
+      new Request(
+        "http://localhost/api/ebay?q=laptop&buyItNowOnly=true&unstableFilter=true",
+      ),
+    );
+
+    expect(fetchEbayItems).toHaveBeenCalledWith("laptop", 1, {
+      minPrice: undefined,
+      maxPrice: undefined,
+      strictMode: false,
+      exclusions: [],
+      keywords: ["laptop"],
+      buyItNowOnly: true,
+      canadaOnly: true,
+    }, {
+      hideUnstableResults: true,
+    });
+  });
+
+  test("kijijiRoute forwards unstableFilter=true to core", async () => {
+    const { kijijiRoute } = await import("../src/routes/kijiji");
+
+    await kijijiRoute(
+      new Request(
+        "http://localhost/api/kijiji?q=laptop&maxPages=5&unstableFilter=true",
+      ),
+    );
+
+    expect(fetchKijijiItems).toHaveBeenCalledWith(
+      "laptop",
+      4,
+      "https://www.kijiji.ca",
+      {
+        location: undefined,
+        category: undefined,
+        keywords: undefined,
+        sortBy: null,
+        sortOrder: null,
+        maxPages: 5,
+        priceMin: undefined,
+        priceMax: undefined,
+        cookies: undefined,
+      },
+      {},
+      {
+        hideUnstableResults: true,
+      },
+    );
+  });
 });