diff --git a/Octokit.sln b/Octokit.sln
index 833a04b1..9fe21a54 100644
--- a/Octokit.sln
+++ b/Octokit.sln
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 2013
-VisualStudioVersion = 12.0.30110.0
+VisualStudioVersion = 12.0.21005.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Octokit", "Octokit\Octokit.csproj", "{08DD4305-7787-4823-A53F-4D0F725A07F3}"
 EndProject
@@ -41,6 +41,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Octokit-Mono", "Octokit\Oct
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Octokit.Tests.Conventions", "Octokit.Tests.Conventions\Octokit.Tests.Conventions.csproj", "{5345E2E6-4E7C-40F8-831B-E491F6051D3C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Octokit-Portable", "Octokit\Octokit-Portable.csproj", "{DDB20481-E17D-4E0A-B2C0-FFFF78D4ED71}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -83,6 +85,10 @@ Global
 		{5345E2E6-4E7C-40F8-831B-E491F6051D3C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5345E2E6-4E7C-40F8-831B-E491F6051D3C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5345E2E6-4E7C-40F8-831B-E491F6051D3C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{DDB20481-E17D-4E0A-B2C0-FFFF78D4ED71}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DDB20481-E17D-4E0A-B2C0-FFFF78D4ED71}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DDB20481-E17D-4E0A-B2C0-FFFF78D4ED71}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DDB20481-E17D-4E0A-B2C0-FFFF78D4ED71}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/Octokit/Octokit-Portable.csproj b/Octokit/Octokit-Portable.csproj
new file mode 100644
index 00000000..0092e37e
--- /dev/null
+++ b/Octokit/Octokit-Portable.csproj
@@ -0,0 +1,320 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <MinimumVisualStudioVersion>11.0</MinimumVisualStudioVersion>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{DDB20481-E17D-4E0A-B2C0-FFFF78D4ED71}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Octokit_Portable</RootNamespace>
+    <AssemblyName>Octokit-Portable</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkProfile>Profile78</TargetFrameworkProfile>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\Portable\</OutputPath>
+    <DefineConstants>TRACE;DEBUG;NETFX_CORE;CODE_ANALYSIS;SIMPLE_JSON_OBJARRAYINTERNAL;SIMPLE_JSON_INTERNAL;NET_45;PORTABLE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\Portable\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE;CODE_ANALYSIS;SIMPLE_JSON_OBJARRAYINTERNAL;SIMPLE_JSON_INTERNAL;NET_45;PORTABLE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+<ItemGroup>
+    <Compile Include="..\SolutionInfo.cs">
+      <Link>Properties\SolutionInfo.cs</Link>
+    </Compile>
+    <Compile Include="Authentication\AnonymousAuthenticator.cs" />
+    <Compile Include="Authentication\AuthenticationType.cs" />
+    <Compile Include="Authentication\Authenticator.cs" />
+    <Compile Include="Authentication\BasicAuthenticator.cs" />
+    <Compile Include="Authentication\IAuthenticationHandler.cs" />
+    <Compile Include="Authentication\TokenAuthenticator.cs" />
+    <Compile Include="Clients\ActivitiesClient.cs" />
+    <Compile Include="Clients\ApiClient.cs" />
+    <Compile Include="Clients\ApiPagination.cs" />
+    <Compile Include="Clients\AssigneesClient.cs" />
+    <Compile Include="Clients\AuthorizationsClient.cs" />
+    <Compile Include="Clients\BlobsClient.cs" />
+    <Compile Include="Clients\CommitsClient.cs" />
+    <Compile Include="Clients\CommitStatusClient.cs" />
+    <Compile Include="Clients\EventsClient.cs" />
+    <Compile Include="Clients\FeedsClient.cs" />
+    <Compile Include="Clients\FollowersClient.cs" />
+    <Compile Include="Clients\GistsClient.cs" />
+    <Compile Include="Clients\GitDatabaseClient.cs" />
+    <Compile Include="Clients\IActivitiesClient.cs" />
+    <Compile Include="Clients\IAssigneesClient.cs" />
+    <Compile Include="Clients\IAuthorizationsClient.cs" />
+    <Compile Include="Clients\IBlobsClient.cs" />
+    <Compile Include="Clients\ICommitsClient.cs" />
+    <Compile Include="Clients\ICommitStatusClient.cs" />
+    <Compile Include="Clients\IEventsClient.cs" />
+    <Compile Include="Clients\IFeedsClient.cs" />
+    <Compile Include="Clients\IFollowersClient.cs" />
+    <Compile Include="Clients\IGistsClient.cs" />
+    <Compile Include="Clients\IGitDatabaseClient.cs" />
+    <Compile Include="Clients\IIssueCommentsClient.cs" />
+    <Compile Include="Clients\IIssuesClient.cs" />
+    <Compile Include="Clients\IIssuesEventsClient.cs" />
+    <Compile Include="Clients\IIssuesLabelsClient.cs" />
+    <Compile Include="Clients\IMilestonesClient.cs" />
+    <Compile Include="Clients\IMiscellaneousClient.cs" />
+    <Compile Include="Clients\INotificationsClient.cs" />
+    <Compile Include="Clients\IOrganizationMembersClient.cs" />
+    <Compile Include="Clients\IOrganizationsClient.cs" />
+    <Compile Include="Clients\IReferencesClient.cs" />
+    <Compile Include="Clients\IPullRequestsClient.cs" />
+    <Compile Include="Clients\IReleasesClient.cs" />
+    <Compile Include="Clients\IRepositoriesClient.cs" />
+    <Compile Include="Clients\ISshKeysClient.cs" />
+    <Compile Include="Clients\IssueCommentsClient.cs" />
+    <Compile Include="Clients\IssuesClient.cs" />
+    <Compile Include="Clients\IssuesLabelsClient.cs" />
+    <Compile Include="Clients\IStarredClient.cs" />
+    <Compile Include="Clients\IStatisticsClient.cs" />
+    <Compile Include="Clients\ITagsClient.cs" />
+    <Compile Include="Clients\IssuesEventsClient.cs" />
+    <Compile Include="Clients\ITreesClient.cs" />
+    <Compile Include="Clients\ITeamsClient.cs" />
+    <Compile Include="Clients\IUsersClient.cs" />
+    <Compile Include="Clients\IWatchedClient.cs" />
+    <Compile Include="Clients\MilestonesClient.cs" />
+    <Compile Include="Clients\MiscellaneousClient.cs" />
+    <Compile Include="Clients\NotificationsClient.cs" />
+    <Compile Include="Clients\OrganizationMembersClient.cs" />
+    <Compile Include="Clients\OrganizationsClient.cs" />
+    <Compile Include="Clients\ReferencesClient.cs" />
+    <Compile Include="Clients\PullRequestsClient.cs" />
+    <Compile Include="Clients\ReleasesClient.cs" />
+    <Compile Include="Clients\RepositoriesClient.cs" />
+    <Compile Include="Clients\SshKeysClient.cs" />
+    <Compile Include="Clients\StarredClient.cs" />
+    <Compile Include="Clients\StatisticsClient.cs" />
+    <Compile Include="Clients\TagsClient.cs" />
+    <Compile Include="Clients\TreesClient.cs" />
+    <Compile Include="Clients\TeamsClient.cs" />
+    <Compile Include="Clients\UsersClient.cs" />
+    <Compile Include="Clients\WatchedClient.cs" />
+    <Compile Include="Exceptions\ApiException.cs" />
+    <Compile Include="Exceptions\ApiValidationException.cs" />
+    <Compile Include="Exceptions\AuthorizationException.cs" />
+    <Compile Include="Exceptions\NotFoundException.cs" />
+    <Compile Include="Exceptions\TwoFactorChallengeFailedException.cs" />
+    <Compile Include="Exceptions\TwoFactorRequiredException.cs" />
+    <Compile Include="Helpers\ApiExtensions.cs" />
+    <Compile Include="Helpers\ApiUrls.cs" />
+    <Compile Include="Helpers\AuthorizationExtensions.cs" />
+    <Compile Include="Exceptions\ForbiddenException.cs" />
+    <Compile Include="Exceptions\LoginAttemptsExceededException.cs" />
+    <Compile Include="Exceptions\RateLimitExceededException.cs" />
+    <Compile Include="Helpers\CollectionExtensions.cs" />
+    <Compile Include="Helpers\EnumExtensions.cs" />
+    <Compile Include="Helpers\IApiPagination.cs" />
+    <Compile Include="Helpers\IReadOnlyPagedCollection.cs" />
+    <Compile Include="Helpers\ModelExtensions.cs" />
+    <Compile Include="Helpers\ParameterAttribute.cs" />
+    <Compile Include="Helpers\ReflectionExtensions.cs" />
+    <Compile Include="Helpers\TwoFactorChallengeResult.cs" />
+    <Compile Include="Helpers\UriExtensions.cs" />
+    <Compile Include="Http\ApiConnection.cs" />
+    <Compile Include="Http\ApiResponse.cs" />
+    <Compile Include="Http\Credentials.cs" />
+    <Compile Include="Http\CredentialsExtensions.cs" />
+    <Compile Include="Http\HttpVerb.cs" />
+    <Compile Include="Http\IApiConnection.cs" />
+    <Compile Include="Http\ICredentialStore.cs" />
+    <Compile Include="Http\IHttpClient.cs" />
+    <Compile Include="Http\InMemoryCredentialStore.cs" />
+    <Compile Include="Http\JsonHttpPipeline.cs" />
+    <Compile Include="Http\RateLimit.cs" />
+    <Compile Include="Http\ReadOnlyPagedCollection.cs" />
+    <Compile Include="IGitHubClient.cs" />
+    <Compile Include="Http\ApiInfoExtensions.cs" />
+    <Compile Include="Http\ApiInfoParser.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Http\ApiInfo.cs" />
+    <Compile Include="Http\IJsonSerializer.cs" />
+    <Compile Include="Http\SimpleJsonSerializer.cs" />
+    <Compile Include="Helpers\Ensure.cs" />
+    <Compile Include="GitHubClient.cs" />
+    <Compile Include="Http\Connection.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Http\HttpClientAdapter.cs" />
+    <Compile Include="Http\IConnection.cs" />
+    <Compile Include="Http\IRequest.cs" />
+    <Compile Include="Http\IResponse.cs" />
+    <Compile Include="Http\Request.cs" />
+    <Compile Include="Models\Request\AuthorizationUpdate.cs" />
+    <Compile Include="Models\Request\GistRequest.cs" />
+    <Compile Include="Models\Request\GistUpdate.cs" />
+    <Compile Include="Models\Request\IssueRequest.cs" />
+    <Compile Include="Models\Request\IssueUpdate.cs" />
+    <Compile Include="Models\Request\LabelUpdate.cs" />
+    <Compile Include="Models\Request\MergePullRequest.cs" />
+    <Compile Include="Models\Request\MilestoneRequest.cs" />
+    <Compile Include="Models\Request\MilestoneUpdate.cs" />
+    <Compile Include="Models\Request\NewAuthorization.cs" />
+    <Compile Include="Models\Request\NewBlob.cs" />
+    <Compile Include="Models\Request\NewCommit.cs" />
+    <Compile Include="Models\Request\NewCommitStatus.cs" />
+    <Compile Include="Models\Request\NewGist.cs" />
+    <Compile Include="Models\Request\NewIssue.cs" />
+    <Compile Include="Models\Request\NewLabel.cs" />
+    <Compile Include="Models\Request\NewMilestone.cs" />
+    <Compile Include="Models\Request\NewReference.cs" />
+    <Compile Include="Models\Request\NewPullRequest.cs" />
+    <Compile Include="Models\Request\NewRepository.cs" />
+    <Compile Include="Models\Request\NewSubscription.cs" />
+    <Compile Include="Models\Request\NewTag.cs" />
+    <Compile Include="Models\Request\NewTree.cs" />
+    <Compile Include="Models\Request\NewTreeItem.cs" />
+    <Compile Include="Models\Request\NewTeam.cs" />
+    <Compile Include="Models\Request\Permission.cs" />
+    <Compile Include="Models\Request\ReferenceUpdate.cs" />
+    <Compile Include="Models\Request\PullRequestRequest.cs" />
+    <Compile Include="Models\Request\PullRequestUpdate.cs" />
+    <Compile Include="Models\Request\ReleaseAssetUpdate.cs" />
+    <Compile Include="Models\Request\ReleaseUpdate.cs" />
+    <Compile Include="Models\Request\RepositoryIssueRequest.cs" />
+    <Compile Include="Models\Request\RequestParameters.cs" />
+    <Compile Include="Models\Request\SshKeyUpdate.cs" />
+    <Compile Include="Models\Request\StarredRequest.cs" />
+    <Compile Include="Models\Request\UpdateTeam.cs" />
+    <Compile Include="Models\Request\UserUpdate.cs" />
+    <Compile Include="Models\Response\Account.cs" />
+    <Compile Include="Models\Response\Activity.cs" />
+    <Compile Include="Models\Response\ApiError.cs" />
+    <Compile Include="Models\Response\ApiErrorDetail.cs" />
+    <Compile Include="Models\Response\Application.cs" />
+    <Compile Include="Models\Response\Author.cs" />
+    <Compile Include="Models\Response\Authorization.cs" />
+    <Compile Include="Models\Response\Blob.cs" />
+    <Compile Include="Models\Response\Branch.cs" />
+    <Compile Include="Models\Response\Commit.cs" />
+    <Compile Include="Models\Response\CommitStatus.cs" />
+    <Compile Include="Models\Response\Contributor.cs" />
+    <Compile Include="Models\Response\EmailAddress.cs" />
+    <Compile Include="Models\Response\Feed.cs" />
+    <Compile Include="Models\Response\FeedLink.cs" />
+    <Compile Include="Models\Response\Gist.cs" />
+    <Compile Include="Models\Response\GistChangeStatus.cs" />
+    <Compile Include="Models\Response\GistFile.cs" />
+    <Compile Include="Models\Response\GistFork.cs" />
+    <Compile Include="Models\Response\GistHistory.cs" />
+    <Compile Include="Models\Response\GitReference.cs" />
+    <Compile Include="Models\Response\GitTag.cs" />
+    <Compile Include="Models\Response\EventInfo.cs" />
+    <Compile Include="Models\Response\Issue.cs" />
+    <Compile Include="Models\Response\IssueComment.cs" />
+    <Compile Include="Models\Response\IssueEvent.cs" />
+    <Compile Include="Models\Response\Label.cs" />
+    <Compile Include="Models\Response\Milestone.cs" />
+    <Compile Include="Models\Response\Notification.cs" />
+    <Compile Include="Models\Response\NotificationInfo.cs" />
+    <Compile Include="Models\Response\Organization.cs" />
+    <Compile Include="Models\Response\Plan.cs" />
+    <Compile Include="Models\Response\PullRequest.cs" />
+    <Compile Include="Models\Response\PullRequestMerge.cs" />
+    <Compile Include="Models\Response\Readme.cs" />
+    <Compile Include="Models\Response\ReadmeResponse.cs" />
+    <Compile Include="Models\Response\Reference.cs" />
+    <Compile Include="Models\Response\Release.cs" />
+    <Compile Include="Models\Response\ReleaseAsset.cs" />
+    <Compile Include="Models\Response\ReleaseAssetUpload.cs" />
+    <Compile Include="Models\Response\Repository.cs" />
+    <Compile Include="Models\Response\SearchRepositoryResult.cs" />
+    <Compile Include="Models\Response\Signature.cs" />
+    <Compile Include="Models\Response\SshKey.cs" />
+    <Compile Include="Models\Response\SshKeyInfo.cs" />
+    <Compile Include="Models\Response\Subscription.cs" />
+    <Compile Include="Models\Response\TagObject.cs" />
+    <Compile Include="Models\Response\TreeItem.cs" />
+    <Compile Include="Models\Response\TreeResponse.cs" />
+    <Compile Include="Models\Response\Team.cs" />
+    <Compile Include="Models\Response\User.cs" />
+    <Compile Include="Models\Response\WeeklyCommitActivity.cs" />
+    <Compile Include="Models\Response\WeeklyHash.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Helpers\StringExtensions.cs" />
+    <Compile Include="SimpleJson.cs" />
+    <Compile Include="Models\Response\SearchCode.cs" />
+    <Compile Include="Clients\ISearchClient.cs" />
+    <Compile Include="Clients\SearchClient.cs" />
+    <Compile Include="Models\Response\BlobReference.cs" />
+    <Compile Include="Clients\RepoCollaboratorsClient.cs" />
+    <Compile Include="Clients\IRepoCollaboratorsClient.cs" />
+    <Compile Include="Models\Request\SearchCodeRequest.cs" />
+    <Compile Include="Models\Request\SearchIssuesRequest.cs" />
+    <Compile Include="Models\Request\SearchRepositoriesRequest.cs" />
+    <Compile Include="Models\Request\SearchUsersRequest.cs" />
+    <Compile Include="Models\Request\SearchQualifierOperator.cs" />
+    <Compile Include="Clients\GistCommentsClient.cs" />
+    <Compile Include="Clients\IGistCommentsClient.cs" />
+    <Compile Include="Models\Response\GistComment.cs" />
+    <Compile Include="Models\Request\BodyWrapper.cs" />
+    <Compile Include="Clients\DeploymentStatusClient.cs" />
+    <Compile Include="Clients\DeploymentsClient.cs" />
+    <Compile Include="Clients\IDeploymentsClient.cs" />
+    <Compile Include="Models\Request\NewDeployment.cs" />
+    <Compile Include="Clients\IDeploymentStatusClient.cs" />
+    <Compile Include="Models\Request\NewDeploymentStatus.cs" />
+    <Compile Include="Models\Response\DeploymentStatus.cs" />
+    <Compile Include="Models\Response\Deployment.cs" />
+    <Compile Include="Models\Request\BaseSearchRequest.cs" />
+    <Compile Include="Models\Response\RepositoryTag.cs" />
+    <Compile Include="Models\Request\RepositoryUpdate.cs" />
+    <Compile Include="Models\Response\RepositoryLanguage.cs" />
+    <Compile Include="Clients\IUserEmailsClient.cs" />
+    <Compile Include="Clients\UserEmailsClient.cs" />
+    <Compile Include="Models\Response\Emoji.cs" />
+    <Compile Include="Models\Response\PunchCard.cs" />
+    <Compile Include="Models\Response\PunchCardPoint.cs" />
+    <Compile Include="Models\Response\Participation.cs" />
+    <Compile Include="Models\Response\AdditionsAndDeletions.cs" />
+    <Compile Include="Models\Response\CodeFrequency.cs" />
+    <Compile Include="Models\Response\CommitActivity.cs" />
+    <Compile Include="Helpers\UnixTimeStampExtensions.cs" />
+    <Compile Include="Models\Response\PullRequestCommit.cs" />
+    <Compile Include="Exceptions\RepositoryExistsException.cs" />
+    <Compile Include="Helpers\ApiErrorExtensions.cs" />
+    <Compile Include="Exceptions\PrivateRepositoryQuotaExceededException.cs" />
+    <Compile Include="Http\ProductHeaderValue.cs" />
+    <Compile Include="Clients\IRepositoryCommentsClient.cs" />
+    <Compile Include="Clients\RepositoryCommentsClient.cs" />
+    <Compile Include="Models\Request\NewCommitComment.cs" />
+    <Compile Include="Models\Response\CommitComment.cs" />
+    <Compile Include="Http\ProductHeaderValue.cs" />
+    <Compile Include="Helpers\HttpClientExtensions.cs" />
+    <Compile Include="Models\Response\SearchUsersResult.cs" />
+    <Compile Include="Models\Response\SearchCodeResult.cs" />
+    <Compile Include="Models\Response\SearchIssuesResult.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <CodeAnalysisDictionary Include="..\CustomDictionary.xml">
+      <Link>CustomDictionary.xml</Link>
+    </CodeAnalysisDictionary>
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
\ No newline at end of file