diff --git a/src/main/scala/codecheck/github/api/GitHubAPI.scala b/src/main/scala/codecheck/github/api/GitHubAPI.scala
index af9ca43..366af99 100644
--- a/src/main/scala/codecheck/github/api/GitHubAPI.scala
+++ b/src/main/scala/codecheck/github/api/GitHubAPI.scala
@@ -27,6 +27,7 @@ class GitHubAPI(token: String, client: AsyncHttpClient, tokenType: String = "tok
   with MilestoneOp
   with WebhookOp
   with CollaboratorOp
+  with SearchOp
 {
 
   private val endpoint = "https://api.github.com"
diff --git a/src/main/scala/codecheck/github/models/Issue.scala b/src/main/scala/codecheck/github/models/Issue.scala
index 325ed32..5769b58 100644
--- a/src/main/scala/codecheck/github/models/Issue.scala
+++ b/src/main/scala/codecheck/github/models/Issue.scala
@@ -104,6 +104,7 @@ case class Issue(value: JValue) extends AbstractJson(value) {
   lazy val assignee = objectOpt("assignee")(v => User(v))
   lazy val milestone = objectOpt("milestone")(v => Milestone(v))
 
+  val state = get("state")
   lazy val user = new User(value \ "user")
   lazy val labels = (value \ "labels") match {
     case JArray(arr) => arr.map(new Label(_))
diff --git a/src/main/scala/codecheck/github/models/Repository.scala b/src/main/scala/codecheck/github/models/Repository.scala
index 93f3570..852423f 100644
--- a/src/main/scala/codecheck/github/models/Repository.scala
+++ b/src/main/scala/codecheck/github/models/Repository.scala
@@ -53,6 +53,8 @@ case class Repository(value: JValue) extends AbstractJson(value) {
   def name = get("name")
   def full_name = get("full_name")
   def url = get("url")
+  def language = get("language")
+  def stargazers_count = get("stargazers_count")
 
   def description = opt("description")
   def open_issues_count = get("open_issues_count").toInt
@@ -65,4 +67,4 @@ case class Permissions(value: JValue) extends AbstractJson(value) {
   def admin = boolean("admin")
   def push = boolean("push")
   def pull = boolean("pull")
-}
\ No newline at end of file
+}
diff --git a/src/main/scala/codecheck/github/models/Search.scala b/src/main/scala/codecheck/github/models/Search.scala
new file mode 100644
index 0000000..081479b
--- /dev/null
+++ b/src/main/scala/codecheck/github/models/Search.scala
@@ -0,0 +1,74 @@
+package codecheck.github.models
+
+import org.json4s.JValue
+import org.json4s.JArray
+
+sealed abstract class SearchSort(val name: String) {
+ override def toString = name
+}
+object SearchSort {
+  //for serachRepositories
+  case object stars extends SearchSort("stars")
+  case object forks extends SearchSort("forks")
+  case object updated extends SearchSort("updated")
+
+  //for searchCode
+  case object indexed extends SearchSort("indexed")
+
+  //for searchIssues
+  case object comments extends SearchSort("comments")
+  case object created extends SearchSort("created")
+  //case object updated extends SearchSort("updated")
+
+  //for searchUser
+  case object followers extends SearchSort("followers")
+  case object repositories extends SearchSort("repositories")
+  case object joined extends SearchSort("joined")
+}
+
+case class SearchInput (
+ q: String,
+ sort: Option[SearchSort] = None,
+ order: SortDirection = SortDirection.desc
+) extends AbstractInput
+
+case class SearchRepositoryResult(value: JValue) extends AbstractJson(value) {
+ def total_count: Long = get("total_count").toLong
+ def incomplete_results: Boolean = boolean("incomplete_results")
+ lazy val items = (value \ "items") match {
+    case JArray(arr) => arr.map(new Repository(_))
+    case _ => Nil
+  }
+}
+
+case class searchCodeItems (value: JValue) extends AbstractJson(value){
+  def name: String = get("name")
+  lazy val Repo = new Repository(value \ "repository")
+}
+
+case class SearchCodeResult(value: JValue) extends AbstractJson(value) {
+ def total_count: Long = get("total_count").toLong
+ def incomplete_results: Boolean = boolean("incomplete_results")
+ lazy val items = (value \ "items") match {
+    case JArray(arr) => arr.map(new searchCodeItems(_))
+    case _ => Nil
+  }
+}
+
+case class SearchIssueResult(value: JValue) extends AbstractJson(value) {
+ def total_count: Long = get("total_count").toLong
+ def incomplete_results: Boolean = boolean("incomplete_results")
+ lazy val items = (value \ "items") match {
+    case JArray(arr) => arr.map(new Issue(_))
+    case _ => Nil
+  }
+}
+
+case class SearchUserResult(value: JValue) extends AbstractJson(value) {
+ def total_count: Long = get("total_count").toLong
+ def incomplete_results: Boolean = boolean("incomplete_results")
+ lazy val items = (value \ "items") match {
+    case JArray(arr) => arr.map(new User(_))
+    case _ => Nil
+  }
+}
diff --git a/src/main/scala/codecheck/github/operations/SearchOp.scala b/src/main/scala/codecheck/github/operations/SearchOp.scala
new file mode 100644
index 0000000..8519a69
--- /dev/null
+++ b/src/main/scala/codecheck/github/operations/SearchOp.scala
@@ -0,0 +1,43 @@
+package codecheck.github.operations
+
+import scala.concurrent.Future
+import scala.concurrent.ExecutionContext.Implicits.global
+
+import codecheck.github.api.GitHubAPI
+import codecheck.github.models.SearchInput
+import codecheck.github.models.SearchRepositoryResult
+import codecheck.github.models.SearchCodeResult
+import codecheck.github.models.SearchIssueResult
+import codecheck.github.models.SearchUserResult
+
+trait SearchOp {
+ self: GitHubAPI =>
+
+  def searchRepositories(input: SearchInput): Future[SearchRepositoryResult] = {
+    val path = s"/search/repositories?q=${input.q}&sort=${input.sort}&order=${input.order}"
+    exec("GET", path ).map { res =>
+      SearchRepositoryResult(res.body)
+   }
+  }
+
+  def searchCode(input: SearchInput): Future[SearchCodeResult] = {
+    val path = s"/search/code?q=${input.q}&sort=${input.sort}&order=${input.order}"
+    exec("GET", path ).map { res =>
+      SearchCodeResult(res.body)
+    }
+  }
+
+  def searchIssues(input: SearchInput): Future[SearchIssueResult] = {
+    val path = s"/search/issues?q=${input.q}&sort=${input.sort}&order=${input.order}"
+    exec("GET", path ).map { res =>
+      SearchIssueResult(res.body)
+    }
+  }
+
+  def searchUser(input: SearchInput): Future[SearchUserResult] = {
+    val path = s"/search/users?q=${input.q}&sort=${input.sort}&order=${input.order}"
+    exec("GET", path ).map { res =>
+      SearchUserResult(res.body)
+    }
+  }
+}
diff --git a/src/test/scala/SearchOpSpec.scala b/src/test/scala/SearchOpSpec.scala
new file mode 100644
index 0000000..90ead5f
--- /dev/null
+++ b/src/test/scala/SearchOpSpec.scala
@@ -0,0 +1,96 @@
+import org.scalatest.path.FunSpec
+import scala.concurrent.Await
+import scala.concurrent.ExecutionContext.Implicits.global
+import codecheck.github.models.SortDirection
+import codecheck.github.models.SearchInput
+import codecheck.github.models.SearchSort
+import codecheck.github.models.SearchRepositoryResult
+import codecheck.github.models.SearchCodeResult
+import codecheck.github.models.searchCodeItems
+import codecheck.github.exceptions.GitHubAPIException
+
+class SearchOpSpec extends FunSpec
+  with Constants
+{
+
+  describe("searchRepositories") {
+    it("with valid SearchInput should succeed") {
+      var q = "tetris language:assembly"
+      val q1 = q.trim.replaceAll(" ","+");
+      val input = SearchInput(q1,sort=Some(SearchSort.stars),order=SortDirection.desc)
+      val res = Await.result(api.searchRepositories(input), TIMEOUT)
+      assert(res.total_count >= 1)
+      assert(res.items(0).id >= 1 )
+      assert(res.items(0).name.length >= 1)
+      assert(res.items(0).full_name.length >= 1)
+      assert(res.items(0).description.isDefined)
+      assert(res.items(0).open_issues_count >= 0)
+      assert(res.items(0).language == "Assembly")
+      assert(res.items(0).stargazers_count > res.items(1).stargazers_count)
+    }
+    it("with valid changed query(q) SearchInput should succeed") {
+      var q = "jquery in:name,description"
+      val q1 = q.trim.replaceAll(" ","+");
+      val input = SearchInput(q1,sort=Some(SearchSort.stars),order=SortDirection.desc)
+      val res = Await.result(api.searchRepositories(input), TIMEOUT)
+      assert(res.total_count >= 1)
+      assert(res.items(0).id >= 1 )
+      assert(res.items(0).name.length >= 1)
+      assert(res.items(0).full_name.length >= 1)
+      assert(res.items(0).description.isDefined)
+      assert(res.items(0).open_issues_count >= 0)
+    }
+  }
+  describe("searchCode") {
+    it("with valid SearchInput q,no SortOrder should succeed") {
+      var q = "addClass in:file language:js repo:jquery/jquery"
+      val q1 = q.trim.replaceAll(" ","+");
+      val input = SearchInput(q1,sort=None,order=SortDirection.desc)
+      val res = Await.result(api.searchCode(input), TIMEOUT)
+      assert(res.total_count >= 1)
+      assert(res.items(0).Repo.id >= 1 )
+      assert(res.items(0).Repo.full_name == "jquery/jquery")
+    }
+    //Following test results in error:
+    //  "message" : "Validation Failed",
+    //  "errors" : [ {
+    //  "message" : "Must include at least one user, organization, or repository"
+    it("with valid SearchInput it should succeed") {
+      var q = "function size:10000 language:python"
+      val q1 = q.trim.replaceAll(" ","+");
+      val input = SearchInput(q1,sort=Some(SearchSort.indexed),order=SortDirection.desc)
+      try {
+        val res = Await.result(api.searchCode(input), TIMEOUT)
+        fail
+      } catch {
+        case e: GitHubAPIException =>
+          assert(e.error.errors.length == 1)
+          assert(e.error.message == "Validation Failed")
+      }
+    }
+  }
+  describe("searchIssues") {
+    it("with valid SearchInput should succeed") {
+      var q = "windows label:bug language:python state:open"
+      val q1 = q.trim.replaceAll(" ","+");
+      val input = SearchInput(q1,sort=Some(SearchSort.created),order=SortDirection.asc)
+      val res = Await.result(api.searchIssues(input), TIMEOUT)
+      assert(res.total_count >= 1)
+      assert(res.items(0).labels(0).name == "bug" )
+      assert(res.items(0).state == "open")
+      assert(((res.items(0).created_at).compareTo(res.items(1).created_at)) > 0)
+    }
+  }
+  describe("searchUser") {
+    it("with valid SearchInput should succeed") {
+      var q = "tom repos:>42 followers:>1000"
+      q = q.trim.replaceAll(" ","+")
+      val q1 = q.replaceAll(">","%3E")
+      val input = SearchInput(q1,sort=None,order=SortDirection.desc)
+      val res = Await.result(api.searchUser(input), TIMEOUT)
+      assert(res.total_count >= 0)
+      assert(res.items(0).login.length >= 0)
+      assert(res.items(0).id >= 0)
+    }
+  }
+}