diff --git a/src/main/scala/app/RepositorySettingsController.scala b/src/main/scala/app/RepositorySettingsController.scala
index fff2294..602f337 100644
--- a/src/main/scala/app/RepositorySettingsController.scala
+++ b/src/main/scala/app/RepositorySettingsController.scala
@@ -8,11 +8,14 @@
 import org.scalatra.FlashMapSupport
 
 class RepositorySettingsController extends RepositorySettingsControllerBase
-  with RepositoryService with AccountService with OwnerAuthenticator with UsersAuthenticator
+  with RepositoryService with AccountService with WebHookService
+  with OwnerAuthenticator with UsersAuthenticator
 
 trait RepositorySettingsControllerBase extends ControllerBase with FlashMapSupport {
-  self: RepositoryService with AccountService with OwnerAuthenticator with UsersAuthenticator =>
+  self: RepositoryService with AccountService with WebHookService
+    with OwnerAuthenticator with UsersAuthenticator =>
 
+  // for repository options
   case class OptionsForm(description: Option[String], defaultBranch: String, isPrivate: Boolean)
   
   val optionsForm = mapping(
@@ -20,13 +23,21 @@
     "defaultBranch" -> trim(label("Default Branch" , text(required, maxlength(100)))),
     "isPrivate"     -> trim(label("Repository Type", boolean()))
   )(OptionsForm.apply)
-  
+
+  // for collaborator addition
   case class CollaboratorForm(userName: String)
 
   val collaboratorForm = mapping(
     "userName" -> trim(label("Username", text(required, collaborator)))
   )(CollaboratorForm.apply)
 
+  // for web hook url addition
+  case class WebHookForm(url: String)
+
+  val webHookForm = mapping(
+    "url" -> trim(label("url", text(required, webHook)))
+  )(WebHookForm.apply)
+
   /**
    * Redirect to the Options page.
    */
@@ -92,7 +103,12 @@
    * Display the web hook page.
    */
   get("/:owner/:repository/settings/hooks")(ownerOnly { repository =>
-    settings.html.hooks(repository)
+    settings.html.hooks(getWebHookURLs(repository.owner, repository.name), repository)
+  })
+
+  post("/:owner/:repository/settings/hooks/add", webHookForm)(ownerOnly { (form, repository) =>
+    addWebHookURL(repository.owner, repository.name, form.url)
+    redirect(s"/${repository.owner}/${repository.name}/settings/hooks")
   })
 
   /**
@@ -116,6 +132,16 @@
   })
 
   /**
+   * Provides duplication check for web hook url.
+   */
+  private def webHook: Constraint = new Constraint(){
+    override def validate(name: String, value: String): Option[String] = {
+      val paths = request.getRequestURI.split("/")
+      getWebHookURLs(paths(1), paths(2)).map(_.url).find(_ == value).map(_ => "URL had been registered already.")
+    }
+  }
+
+  /**
    * Provides Constraint to validate the collaborator name.
    */
   private def collaborator: Constraint = new Constraint(){
diff --git a/src/main/scala/model/WebHook.scala b/src/main/scala/model/WebHook.scala
index f143701..63b0fac 100644
--- a/src/main/scala/model/WebHook.scala
+++ b/src/main/scala/model/WebHook.scala
@@ -6,7 +6,7 @@
   def url = column[String]("URL")
   def * = userName ~ repositoryName ~ url <> (WebHook, WebHook.unapply _)
 
-  def byPrimaryKey(owner: String, repository: String) = byRepository(owner, repository)
+  def byPrimaryKey(owner: String, repository: String, url: String) = byRepository(owner, repository) && (this.url is url.bind)
 }
 
 case class WebHook(
diff --git a/src/main/scala/service/WebHookService.scala b/src/main/scala/service/WebHookService.scala
new file mode 100644
index 0000000..0c050d9
--- /dev/null
+++ b/src/main/scala/service/WebHookService.scala
@@ -0,0 +1,19 @@
+package service
+
+import scala.slick.driver.H2Driver.simple._
+import Database.threadLocalSession
+
+import model._
+
+trait WebHookService {
+
+  def getWebHookURLs(owner: String, repository: String): List[WebHook] =
+    Query(WebHooks).filter(_.byRepository(owner, repository)).sortBy(_.url).list
+
+  def addWebHookURL(owner: String, repository: String, url :String): Unit =
+    WebHooks.insert(WebHook(owner, repository, url))
+
+  def deleteWebHookURL(owner: String, repository: String, url :String): Unit =
+    Query(WebHooks).filter(_.byPrimaryKey(owner, repository, url)).delete
+
+}
diff --git a/src/main/twirl/settings/hooks.scala.html b/src/main/twirl/settings/hooks.scala.html
index 6f3ce16..a5c404a 100644
--- a/src/main/twirl/settings/hooks.scala.html
+++ b/src/main/twirl/settings/hooks.scala.html
@@ -1,10 +1,15 @@
-@(repository: service.RepositoryService.RepositoryInfo)(implicit context: app.Context)
+@(webHooks: List[model.WebHook], repository: service.RepositoryService.RepositoryInfo)(implicit context: app.Context)
 @import context._
 @import view.helpers._
 @html.main("Settings", Some(repository)){
   @html.header("settings", repository)
   @menu("hooks", repository){
     <h3>WebHook URLs</h3>
+    <ul>
+      @webHooks.map { webHook =>
+        <li>@webHook.url <a href="#" class="remove">(remove)</a></li>
+      }
+    </ul>
     <form method="POST" action="@url(repository)/settings/hooks/add" validate="true">
       <div>
         <span class="error" id="error-url"></span>