diff --git a/js/src/gnark/toprf.ts b/js/src/gnark/toprf.ts
index 7812b68..89aa141 100644
--- a/js/src/gnark/toprf.ts
+++ b/js/src/gnark/toprf.ts
@@ -99,9 +99,8 @@ export function makeGnarkOPRFOperator({
 						fromUint8Array(request.secretElements[1])
 					]
 				},
-				responses: responses.map(({ index, publicKeyShare, evaluated, c, r }) => (
+				responses: responses.map(({ publicKeyShare, evaluated, c, r }) => (
 					{
-						index: index,
 						publicKeyShare: fromUint8Array(publicKeyShare),
 						evaluated: fromUint8Array(evaluated),
 						c: fromUint8Array(c),
diff --git a/js/src/gnark/utils.ts b/js/src/gnark/utils.ts
index 68ff4f4..a806c16 100644
--- a/js/src/gnark/utils.ts
+++ b/js/src/gnark/utils.ts
@@ -181,10 +181,9 @@ export function generateGnarkWitness(
 }
 
 function mapResponse({
-	index, publicKeyShare, evaluated, c, r
+	publicKeyShare, evaluated, c, r
 }: ZKTOPRFResponsePublicSignals) {
 	return {
-		index,
 		publicKeyShare: Base64.fromUint8Array(publicKeyShare),
 		evaluated: Base64.fromUint8Array(evaluated),
 		c: Base64.fromUint8Array(c),
diff --git a/js/src/tests/oprf.test.ts b/js/src/tests/oprf.test.ts
index 65124e5..c1f2db6 100644
--- a/js/src/tests/oprf.test.ts
+++ b/js/src/tests/oprf.test.ts
@@ -26,7 +26,6 @@ describe('TOPRF circuits Tests', () => {
 			)
 
 			resps.push({
-				index: i,
 				publicKeyShare: keys.shares[i].publicKey,
 				evaluated: evalResult.evaluated,
 				c: evalResult.c,
diff --git a/js/src/types.ts b/js/src/types.ts
index 4eecdfa..fbeb690 100644
--- a/js/src/types.ts
+++ b/js/src/types.ts
@@ -36,6 +36,8 @@ export type MakeZKOperatorOpts<T> = {
 
 export type MakeZKOperator<T> = (opts: MakeZKOperatorOpts<T>) => ZKOperator
 
+export type MakeOPRFOperator<T> = (opts: MakeZKOperatorOpts<T>) => OPRFOperator
+
 /**
  * provide Uint8array for file data loaded into memory
  * or string, that is the path to load said file
@@ -129,7 +131,6 @@ type ZKProofOutput = {
 type ZKInputItem = Uint8Array
 
 export type ZKTOPRFResponsePublicSignals = {
-	index: number
 	publicKeyShare: ZKInputItem
 	evaluated: ZKInputItem
 	c: ZKInputItem
@@ -177,7 +178,6 @@ type OPRFResponse = {
 }
 
 export type OPRFResponseData = OPRFResponse & {
-    index: number
     publicKeyShare: Uint8Array
 }
 
diff --git a/js/tsconfig.json b/js/tsconfig.json
index cb40a45..e79f03a 100644
--- a/js/tsconfig.json
+++ b/js/tsconfig.json
@@ -16,7 +16,8 @@
     "lib": [ "es2020", "DOM" ]
   },
   "include": [
-    "src/**/*.ts"
+    "src/**/*.ts",
+    "src/**/*.js"
   ],
   "exclude": [
     "node_modules"