diff --git a/src/http-client.js b/src/http-client.js
index 7156d6a1..6c645ca1 100644
--- a/src/http-client.js
+++ b/src/http-client.js
@@ -479,6 +479,12 @@ export default opts => {
       ),
     futuresFundingRate: payload =>
       checkParams('fundingRate', payload, ['symbol']) && pubCall('/fapi/v1/fundingRate', payload),
+    futuresOpenInterest: function futuresOpenInterest(payload) {
+      return pubCall('/fapi/v1/openInterest', payload);
+    },
+    futuresOpenInterestHist: function futuresOpenInterestHist(payload) {
+      return pubCall('/futures/data/openInterestHist', payload);
+    },
 
     futuresOrder: payload => order(privCall, payload, '/fapi/v1/order'),
     futuresBatchOrders: payload => privCall('/fapi/v1/batchOrders', payload, 'POST'),