diff --git a/backend/LfClassicData/DataServiceKernel.cs b/backend/LfClassicData/DataServiceKernel.cs
index 3d67e729e..196e87253 100644
--- a/backend/LfClassicData/DataServiceKernel.cs
+++ b/backend/LfClassicData/DataServiceKernel.cs
@@ -1,9 +1,4 @@
 using LfClassicData.Configuration;
-using Microsoft.AspNetCore.Builder;
-using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Routing;
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
@@ -48,42 +43,4 @@ public static MongoClientSettings BuildMongoClientSettings(IServiceProvider prov
             cb.Subscribe(new DiagnosticsActivityEventSubscriber(new() { CaptureCommandText = true }));
         return mongoSettings;
     }
-
-    public static IEndpointConventionBuilder MapLfClassicApi(this IEndpointRouteBuilder builder)
-    {
-        var group = builder.MapGroup("/api/lfclassic/{projectCode}");
-        group.MapGet("/writingSystems",
-            (string projectCode, [FromServices] ILexboxApiProvider provider) =>
-            {
-                var api = provider.GetProjectApi(projectCode);
-                return api.GetWritingSystems();
-            });
-        group.MapGet("/entries",
-            (string projectCode,
-                [FromServices] ILexboxApiProvider provider,
-                int count = 1000,
-                int offset = 0
-                ) =>
-            {
-                var api = provider.GetProjectApi(projectCode);
-                return api.GetEntries(new QueryOptions(SortOptions.Default, null, count, offset));
-            });
-        group.MapGet("/entries/{search}",
-            (string projectCode,
-                [FromServices] ILexboxApiProvider provider,
-                string search,
-                int count = 1000,
-                int offset = 0) =>
-            {
-                var api = provider.GetProjectApi(projectCode);
-                return api.SearchEntries(search, new QueryOptions(SortOptions.Default, null, count, offset));
-            });
-        group.MapGet("/entry/{id:Guid}",
-            (string projectCode, Guid id, [FromServices] ILexboxApiProvider provider) =>
-            {
-                var api = provider.GetProjectApi(projectCode);
-                return api.GetEntry(id);
-            });
-        return group;
-    }
 }
diff --git a/backend/LfClassicData/LfClassicRoutes.cs b/backend/LfClassicData/LfClassicRoutes.cs
new file mode 100644
index 000000000..c52ee01fc
--- /dev/null
+++ b/backend/LfClassicData/LfClassicRoutes.cs
@@ -0,0 +1,81 @@
+using System.Text.Json;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Routing;
+using MiniLcm;
+
+namespace LfClassicData;
+
+public static class LfClassicRoutes
+{
+    public static IEndpointConventionBuilder MapLfClassicApi(this IEndpointRouteBuilder builder)
+    {
+        var group = builder.MapGroup("/api/lfclassic/{projectCode}");
+        group.MapGet("/writingSystems",
+            ([FromRoute] string projectCode, [FromServices] ILexboxApiProvider provider) =>
+            {
+                var api = provider.GetProjectApi(projectCode);
+                return api.GetWritingSystems();
+            });
+        group.MapGet("/entries",
+            ([FromRoute] string projectCode,
+                [FromServices] ILexboxApiProvider provider,
+                [AsParameters] ClassicQueryOptions options
+            ) =>
+            {
+                var api = provider.GetProjectApi(projectCode);
+                return api.GetEntries(options.ToQueryOptions());
+            });
+        group.MapGet("/entries/{search}",
+            ([FromRoute] string projectCode,
+                [FromServices] ILexboxApiProvider provider,
+                [FromRoute] string search,
+                [AsParameters] ClassicQueryOptions options) =>
+            {
+                var api = provider.GetProjectApi(projectCode);
+                return api.SearchEntries(search, options.ToQueryOptions());
+            });
+        group.MapGet("/entry/{id:Guid}",
+            ([FromRoute] string projectCode, Guid id, [FromServices] ILexboxApiProvider provider) =>
+            {
+                var api = provider.GetProjectApi(projectCode);
+                return api.GetEntry(id);
+            });
+        return group;
+    }
+
+    private class ClassicQueryOptions
+    {
+        public QueryOptions ToQueryOptions()
+        {
+            ExemplarOptions? exemplarOptions = string.IsNullOrEmpty(ExemplarValue) || ExemplarWritingSystem is null
+                ? null
+                : new (ExemplarValue, ExemplarWritingSystem.Value);
+            var sortField = Enum.TryParse<SortField>(SortField, true, out var field) ? field : SortOptions.Default.Field;
+            return new QueryOptions(new SortOptions(sortField,
+                    SortWritingSystem ?? SortOptions.Default.WritingSystem,
+                    Ascending ?? SortOptions.Default.Ascending),
+                exemplarOptions,
+                Count ?? QueryOptions.Default.Count,
+                Offset ?? QueryOptions.Default.Offset);
+        }
+
+        public string? SortField { get; set; }
+
+        public WritingSystemId? SortWritingSystem { get; set; }
+
+        [FromQuery]
+        public bool? Ascending { get; set; }
+
+        [FromQuery]
+        public string? ExemplarValue { get; set; }
+        public WritingSystemId? ExemplarWritingSystem { get; set; }
+
+        [FromQuery]
+        public int? Count { get; set; }
+
+        [FromQuery]
+        public int? Offset { get; set; }
+    }
+}
diff --git a/frontend/src/routes/(authenticated)/project/[project_code]/viewer/lfClassicLexboxApi.ts b/frontend/src/routes/(authenticated)/project/[project_code]/viewer/lfClassicLexboxApi.ts
index f1f911e23..64dc0c4ca 100644
--- a/frontend/src/routes/(authenticated)/project/[project_code]/viewer/lfClassicLexboxApi.ts
+++ b/frontend/src/routes/(authenticated)/project/[project_code]/viewer/lfClassicLexboxApi.ts
@@ -19,19 +19,42 @@ export class LfClassicLexboxApi implements LexboxApi {
   }
 
   async GetEntries(_options: QueryOptions | undefined): Promise<IEntry[]> {
-    const result = await fetch(`/api/lfclassic/${this.projectCode}/entries?order=desc&count=100`);
+    //todo pass query options into query
+    const result = await fetch(`/api/lfclassic/${this.projectCode}/entries${this.toQueryParams(_options)}`);
     return (await result.json()) as IEntry[];
   }
 
-  CreateWritingSystem(_type: WritingSystemType, _writingSystem: WritingSystem): Promise<void> {
-    throw new Error('Method not implemented.');
+  async SearchEntries(_query: string, _options: QueryOptions | undefined): Promise<IEntry[]> {
+    //todo pass query options into query
+    const result = await fetch(`/api/lfclassic/${this.projectCode}/entries/${encodeURIComponent(_query)}${this.toQueryParams(_options)}`);
+    return (await result.json()) as IEntry[];
   }
 
-  UpdateWritingSystem(_wsId: string, _type: WritingSystemType, _update: JsonPatch): Promise<WritingSystem> {
+  private toQueryParams(options: QueryOptions | undefined): string {
+
+    if (!options) return '';
+    /* eslint-disable @typescript-eslint/no-unsafe-assignment */
+    const asc = options.order.ascending ?? true;
+    const params = new URLSearchParams({
+      SortField: options.order.field,
+      SortWritingSystem: options.order.writingSystem,
+      Ascending: asc ? 'true' : 'false',
+      Count: options.count.toString(),
+      Offset: options.offset.toString()
+    });
+    if (options.exemplar) {
+      params.set('ExemplarValue', options.exemplar.value);
+      params.set('ExemplarWritingSystem', options.exemplar.writingSystem);
+    }
+    /* eslint-enable @typescript-eslint/no-unsafe-assignment */
+    return '?' + params.toString();
+  }
+
+  CreateWritingSystem(_type: WritingSystemType, _writingSystem: WritingSystem): Promise<void> {
     throw new Error('Method not implemented.');
   }
 
-  SearchEntries(_query: string, _options: QueryOptions | undefined): Promise<IEntry[]> {
+  UpdateWritingSystem(_wsId: string, _type: WritingSystemType, _update: JsonPatch): Promise<WritingSystem> {
     throw new Error('Method not implemented.');
   }