diff --git a/src/Bindle/BindleClient.cs b/src/Bindle/BindleClient.cs
index 8bc74c3..c53999c 100644
--- a/src/Bindle/BindleClient.cs
+++ b/src/Bindle/BindleClient.cs
@@ -10,7 +10,7 @@
 
 namespace Deislabs.Bindle;
 
-public class BindleClient
+public class BindleClient: IBindleClient
 {
     public BindleClient(string connectionString) : this(new ConnectionInfo(connectionString)) { }
 
diff --git a/src/Bindle/IBindleClient.cs b/src/Bindle/IBindleClient.cs
new file mode 100644
index 0000000..a1a9650
--- /dev/null
+++ b/src/Bindle/IBindleClient.cs
@@ -0,0 +1,20 @@
+using System.IO;
+using System.Net.Http;
+using System.Threading.Tasks;
+
+namespace Deislabs.Bindle
+{
+	public interface IBindleClient
+	{
+		Task<CreateInvoiceResult> CreateInvoice(Invoice invoice);
+		Task CreateParcel(string invoiceId, string parcelId, byte[] content);
+		Task CreateParcel(string invoiceId, string parcelId, HttpContent content);
+		Task CreateParcel(string invoiceId, string parcelId, Stream content);
+		Task CreateParcel(string invoiceId, string parcelId, string content);
+		Task<Invoice> GetInvoice(string invoiceId, GetInvoiceOptions options = GetInvoiceOptions.None);
+		Task<HttpContent> GetParcel(string invoiceId, string parcelId);
+		Task<MissingParcelsResponse> ListMissingParcels(string invoiceId);
+		Task<Matches> QueryInvoices(string? queryString = null, ulong? offset = null, long? limit = null, bool? strict = null, string? semVer = null, bool? yanked = null);
+		Task YankInvoice(string invoiceId);
+	}
+}
\ No newline at end of file