diff --git a/frontend/src/app/services/electrs-api.service.ts b/frontend/src/app/services/electrs-api.service.ts
index 3cd5b5abd..6e9697f49 100644
--- a/frontend/src/app/services/electrs-api.service.ts
+++ b/frontend/src/app/services/electrs-api.service.ts
@@ -142,12 +142,16 @@ export class ElectrsApiService {
     return this.httpClient.get<Transaction[]>(this.apiBaseUrl + this.apiBasePath + '/api/address/' + address + '/txs', { params });
   }
 
-  getAddressesTransactions$(addresses: string[],  txid?: string): Observable<Transaction[]> {
+  getAddressesTransactions$(addresses: string[], txid?: string): Observable<Transaction[]> {
     let params = new HttpParams();
     if (txid) {
       params = params.append('after_txid', txid);
     }
-    return this.httpClient.get<Transaction[]>(this.apiBaseUrl + this.apiBasePath + `/api/addresses/txs?addresses=${addresses.join(',')}`, { params });
+    return this.httpClient.post<Transaction[]>(
+      this.apiBaseUrl + this.apiBasePath + '/api/addresses/txs',
+      addresses,
+      { params }
+    );
   }
 
   getAddressSummary$(address: string,  txid?: string): Observable<AddressTxSummary[]> {
@@ -163,7 +167,7 @@ export class ElectrsApiService {
     if (txid) {
       params = params.append('after_txid', txid);
     }
-    return this.httpClient.get<AddressTxSummary[]>(this.apiBaseUrl + this.apiBasePath + `/api/addresses/txs/summary?addresses=${addresses.join(',')}`, { params });
+    return this.httpClient.post<AddressTxSummary[]>(this.apiBaseUrl + this.apiBasePath + '/api/addresses/txs/summary', addresses, { params });
   }
 
   getScriptHashTransactions$(script: string,  txid?: string): Observable<Transaction[]> {
@@ -182,7 +186,7 @@ export class ElectrsApiService {
       params = params.append('after_txid', txid);
     }
     return from(Promise.all(scripts.map(script => calcScriptHash$(script)))).pipe(
-      switchMap(scriptHashes => this.httpClient.get<Transaction[]>(this.apiBaseUrl + this.apiBasePath + `/api/scripthashes/txs?scripthashes=${scriptHashes.join(',')}`, { params })),
+      switchMap(scriptHashes => this.httpClient.post<Transaction[]>(this.apiBaseUrl + this.apiBasePath + '/api/scripthashes/txs', scriptHashes, { params })),
     );
   }
 
@@ -212,7 +216,7 @@ export class ElectrsApiService {
       params = params.append('after_txid', txid);
     }
     return from(Promise.all(scripts.map(script => calcScriptHash$(script)))).pipe(
-      switchMap(scriptHashes => this.httpClient.get<AddressTxSummary[]>(this.apiBaseUrl + this.apiBasePath + `/api/scripthashes/txs/summary?scripthashes=${scriptHashes.join(',')}`, { params })),
+      switchMap(scriptHashes => this.httpClient.post<AddressTxSummary[]>(this.apiBaseUrl + this.apiBasePath + '/api/scripthashes/txs/summary', scriptHashes, { params })),
     );
   }
 
diff --git a/frontend/src/app/services/state.service.ts b/frontend/src/app/services/state.service.ts
index 55f76d6b1..0d006b552 100644
--- a/frontend/src/app/services/state.service.ts
+++ b/frontend/src/app/services/state.service.ts
@@ -171,7 +171,7 @@ export class StateService {
   mempoolRemovedTransactions$ = new Subject<Transaction>();
   multiAddressTransactions$ = new Subject<{ [address: string]: { mempool: Transaction[], confirmed: Transaction[], removed: Transaction[] }}>();
   blockTransactions$ = new Subject<Transaction>();
-  walletTransactions$ = new Subject<Record<string, AddressTxSummary[]>>();
+  walletTransactions$ = new Subject<Transaction[]>();
   isLoadingWebSocket$ = new ReplaySubject<boolean>(1);
   isLoadingMempool$ = new BehaviorSubject<boolean>(true);
   vbytesPerSecond$ = new ReplaySubject<number>(1);