diff --git a/MSClient.cs b/MSClient.cs
index 1069175..3b35a1f 100644
--- a/MSClient.cs
+++ b/MSClient.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Collections.Specialized;
@@ -358,6 +358,59 @@ public string CheckGUID(string guid)
             
             return $"Status for {guid}: {dynObj.status}";
         }
+
+        public string HashLookup(string hash)
+        {
+            string url = $@"https://malshare.com/api.php?api_key={key}&action=hashlookup";
+
+            string responseStr = String.Empty;
+
+            using (WebClient wb = new WebClient())
+            {
+                try
+                {
+
+                    var response = wb.UploadString(url, "POST", hash);
+
+                    var result = JsonConvert.DeserializeObject<List<Hashes>>(response);
+
+                    responseStr = $"MD5: {result[0].md5}/SHA1: {result[0].sha1}/SHA256: {result[0].sha256}";
+
+
+                }
+                catch (WebException ex)
+                {
+                    if (ex.Response != null)
+                    {
+                        WebResponse response = ex.Response;
+                        Stream dataStream = response.GetResponseStream();
+                        StreamReader reader = new StreamReader(dataStream);
+                        string details = reader.ReadToEnd();
+
+                        if (details.Contains("error"))
+                        {
+                            dynamic dynObj = JsonConvert.DeserializeObject(details);
+
+                            return $"Error for API key {key}: {dynObj.error}";
+                        }
+
+                        return details;
+                    }
+                }
+                catch
+                {
+                    return $"Failed to retrieve data for {hash}. Perhaps it doesn't exist in the database.";
+                }
+
+                return responseStr;
+            }
+        }
     }
 
+    public class Hashes
+    {
+        public string md5 { get; set; }
+        public string sha1 { get; set; }
+        public string sha256 { get; set; }
+    }
 }
diff --git a/MalShare.NET.2.2.0.nupkg b/MalShare.NET.2.3.0.nupkg
similarity index 55%
rename from MalShare.NET.2.2.0.nupkg
rename to MalShare.NET.2.3.0.nupkg
index 2025f42..0242dea 100644
Binary files a/MalShare.NET.2.2.0.nupkg and b/MalShare.NET.2.3.0.nupkg differ
diff --git a/MalShare.NET.dll b/MalShare.NET.dll
index b9d176c..59d1a6f 100644
Binary files a/MalShare.NET.dll and b/MalShare.NET.dll differ
diff --git a/README.md b/README.md
index 4bdceb5..0e558a1 100644
--- a/README.md
+++ b/README.md
@@ -4,30 +4,31 @@ A .NET implementation of the MalShare API
 
 
 What's currently supported (https://malshare.com/doc.php):
-<br>List hashes from the past 24 hours.
-<br>List of sample sources from the past 24 hours.
-<br>Get stored file details.
-<br>List MD5/SHA1/SHA256 hashes of a specific type from the past 24 hours.
-<br>Search sample hashes, sources and file names.
-<br>Upload using FormData field "upload".
-<br>Get list of file types & count from the past 24 hours.
-<br>GET allocated number of API key requests per day and remaining.
-<br>Download file.
-<br>Perform URL download and add result to sample collection.
-<br>Check status of download task via GUID.
+1. List hashes from the past 24 hours. **Endpoint: "getlist"**.
+2. List of sample sources from the past 24 hours. **Endpoint: "getsources".**
+3. Get stored file details. **Endpoint: "details".**
+4. List MD5/SHA1/SHA256 hashes of a specific type from the past 24 hours. **Endpoint: "type".**
+5. Search sample hashes, sources and file names. **Endpoint: "search".**
+6. Upload using FormData field "upload". **Endpoint: "upload".**
+7. Get list of file types & count from the past 24 hours. **Endpoint: "gettypes".**
+8. GET allocated number of API key requests per day and remaining. **Endpoint: "getlimit".**
+9. Download file. **Endpoint: "getfile".**
+10. Perform URL download and add result to sample collection. **Endpoint: "download_url".**
+11. Check status of download task via GUID. **Endpoint: "download_url_check".**
+12. **NEW in version 2.3**: Partial support for "Supply an array of hex-encoded hashes in a POST field named hashes". Right now you can supply **only 1 hash per call**, you **can't supply an array.** **Endpoint: "hashlookup".**
 
 How to install:
 
 You have 3 options:
-1. Add reference to the .dll file in your project, you will need to add the NewtonSoft.Json dependency yourself
+1. Add reference to the .dll file in your project, you will need to add the NewtonSoft.Json dependency **yourself**
 2. Install the NuGet Package from nuget.org (https://www.nuget.org/packages/MalShare.NET)
 3. Install the .nupkg file manually
 
 Dependencies:
-1. Microsoft.CSharp (>= 4.6.0)
-2. Newtonsoft.Json (>= 12.0.2)
+1. Microsoft.CSharp (>= 4.7.0)
+2. Newtonsoft.Json (>= 12.0.3)
 3. NETStandard.Library (>= 2.0.3)
 
 How to use:
 
-You can find usage examples here: https://pastebin.com/8n61zvas
+You can find usage examples and explanations for each endpoint here: https://pastebin.com/8n61zvas