diff --git a/__tests__/unit/core-api/plugins/comma-array-query.test.ts b/__tests__/unit/core-api/plugins/comma-array-query.test.ts
new file mode 100644
index 0000000000..f7dcc023a6
--- /dev/null
+++ b/__tests__/unit/core-api/plugins/comma-array-query.test.ts
@@ -0,0 +1,61 @@
+import { commaArrayQuery } from "@packages/core-api/src/plugins/comma-array-query";
+
+describe("commaArrayQuery.register", () => {
+    it("should register onRequest extension", () => {
+        const server = {
+            ext: jest.fn(),
+        };
+
+        commaArrayQuery.register(server);
+
+        expect(server.ext).toBeCalledWith("onRequest", commaArrayQuery.onRequest);
+    });
+});
+
+describe("commaArrayQuery.onRequest", () => {
+    it("should replace comma separated query parameter by array", () => {
+        const addresses = [
+            "AXGc1bgU3v3rHmx9WVkUUHLA6gbzh8La7V",
+            "AQvWbCAXbBnY9fHpgNrcLZ99hYfDifH4Hs",
+            "ATKegneyu9Fkoj5FxiJ3biup8xv8zM34M3",
+        ];
+        const request = {
+            query: {
+                address: addresses.join(","),
+            },
+        };
+
+        const h = {
+            continue: Symbol,
+        };
+
+        const ret = commaArrayQuery.onRequest(request, h);
+
+        expect(request.query).toEqual({
+            address: addresses,
+        });
+
+        expect(ret).toBe(h.continue);
+    });
+
+    it("should leave as-is query parameter without comma", () => {
+        const address = "AXGc1bgU3v3rHmx9WVkUUHLA6gbzh8La7V";
+        const request = {
+            query: {
+                address,
+            },
+        };
+
+        const h = {
+            continue: Symbol,
+        };
+
+        const ret = commaArrayQuery.onRequest(request, h);
+
+        expect(request.query).toEqual({
+            address,
+        });
+
+        expect(ret).toBe(h.continue);
+    });
+});
diff --git a/packages/core-api/src/plugins/comma-array-query.ts b/packages/core-api/src/plugins/comma-array-query.ts
new file mode 100644
index 0000000000..abdd4ec3ec
--- /dev/null
+++ b/packages/core-api/src/plugins/comma-array-query.ts
@@ -0,0 +1,22 @@
+import Hapi from "@hapi/hapi";
+
+export const commaArrayQuery = {
+    name: "comma-array-query",
+    version: "1.0.0",
+
+    register(server: Hapi.Server): void {
+        server.ext("onRequest", this.onRequest);
+    },
+
+    onRequest(request: Hapi.Request, h: Hapi.ResponseToolkit): Hapi.Lifecycle.ReturnValue {
+        const query = {};
+        const separator = ",";
+
+        for (const [key, value] of Object.entries(request.query as { [key: string]: string })) {
+            query[key] = value.indexOf(separator) > -1 ? value.split(separator) : value;
+        }
+
+        request.query = query;
+        return h.continue;
+    },
+};
diff --git a/packages/core-api/src/plugins/index.ts b/packages/core-api/src/plugins/index.ts
index 9c0d76fa6a..772a4af673 100644
--- a/packages/core-api/src/plugins/index.ts
+++ b/packages/core-api/src/plugins/index.ts
@@ -1,4 +1,5 @@
 import { dotSeparatedQuery } from "./dot-separated-query";
+import { commaArrayQuery } from "./comma-array-query";
 import { hapiAjv } from "./hapi-ajv";
 import { whitelist } from "./whitelist";
 
@@ -10,6 +11,7 @@ export const preparePlugins = (config) => [
         },
     },
     { plugin: hapiAjv },
+    { plugin: commaArrayQuery },
     { plugin: dotSeparatedQuery },
     {
         plugin: require("./cache"),