diff --git a/backend/src/api/bitcoin/bitcoin-api.interface.ts b/backend/src/api/bitcoin/bitcoin-api.interface.ts
index e2b9158bb..6a22af9a0 100644
--- a/backend/src/api/bitcoin/bitcoin-api.interface.ts
+++ b/backend/src/api/bitcoin/bitcoin-api.interface.ts
@@ -4,6 +4,7 @@ export namespace IBitcoinApi {
     size: number;                    //  (numeric) Current tx count
     bytes: number;                   //  (numeric) Sum of all virtual transaction sizes as defined in BIP 141.
     usage: number;                   //  (numeric) Total memory usage for the mempool
+    total_fee: number;               //  (numeric) Total fees of transactions in the mempool
     maxmempool: number;              //  (numeric) Maximum memory usage for the mempool
     mempoolminfee: number;           //  (numeric) Minimum fee rate in BTC/kB for tx to be accepted.
     minrelaytxfee: number;           //  (numeric) Current minimum relay fee for transactions
diff --git a/backend/src/api/mempool.ts b/backend/src/api/mempool.ts
index b1bd6a159..3a389c059 100644
--- a/backend/src/api/mempool.ts
+++ b/backend/src/api/mempool.ts
@@ -14,7 +14,7 @@ class Mempool {
   private static LAZY_DELETE_AFTER_SECONDS = 30;
   private inSync: boolean = false;
   private mempoolCache: { [txId: string]: TransactionExtended } = {};
-  private mempoolInfo: IBitcoinApi.MempoolInfo = { loaded: false, size: 0, bytes: 0, usage: 0,
+  private mempoolInfo: IBitcoinApi.MempoolInfo = { loaded: false, size: 0, bytes: 0, usage: 0, total_fee: 0,
                                                     maxmempool: 300000000, mempoolminfee: 0.00001000, minrelaytxfee: 0.00001000 };
   private mempoolChangedCallback: ((newMempool: {[txId: string]: TransactionExtended; }, newTransactions: TransactionExtended[],
     deletedTransactions: TransactionExtended[]) => void) | undefined;
diff --git a/backend/src/routes.ts b/backend/src/routes.ts
index e06177ddd..9e25f0d35 100644
--- a/backend/src/routes.ts
+++ b/backend/src/routes.ts
@@ -699,7 +699,13 @@ class Routes {
   }
 
   public async getMempool(req: Request, res: Response) {
-    res.status(501).send('Not implemented');
+    const info = mempool.getMempoolInfo();
+    res.json({
+      count: info.size,
+      vsize: info.bytes,
+      total_fee: info.total_fee * 1e8,
+      fee_histogram: []
+    });
   }
 
   public async getMempoolTxIds(req: Request, res: Response) {