diff --git a/lib/travis/api/v3/access_control/generic.rb b/lib/travis/api/v3/access_control/generic.rb
index 8578491e..8c49dce9 100644
--- a/lib/travis/api/v3/access_control/generic.rb
+++ b/lib/travis/api/v3/access_control/generic.rb
@@ -20,6 +20,10 @@ module Travis::API::V3
 
     protected
 
+    def build_visible?(build)
+      visible? build.repository
+    end
+
     def organization_visible?(organization)
       unrestricted_api?
     end
diff --git a/lib/travis/api/v3/constant_resolver.rb b/lib/travis/api/v3/constant_resolver.rb
index f4431780..5c5bb74c 100644
--- a/lib/travis/api/v3/constant_resolver.rb
+++ b/lib/travis/api/v3/constant_resolver.rb
@@ -11,7 +11,7 @@ module Travis::API::V3
 
     def [](key)
       return key unless key.is_a? Symbol
-      resolver_cache[key] ||= const_get(key.to_s.camelize)
+      resolver_cache[key] ||= const_get(key.to_s.camelize, false)
     end
 
     def extended(base)
diff --git a/lib/travis/api/v3/renderer/repository.rb b/lib/travis/api/v3/renderer/repository.rb
index 1eb7ef3a..2c806965 100644
--- a/lib/travis/api/v3/renderer/repository.rb
+++ b/lib/travis/api/v3/renderer/repository.rb
@@ -25,6 +25,7 @@ module Travis::API::V3
       return nil unless model.last_build_id
       {
         :@type        => 'build'.freeze,
+        :@href        => Renderer.href(:build, script_name: script_name, id: model.last_build_id),
         :id           => model.last_build_id,
         :number       => model.last_build_number,
         :state        => model.last_build_state.to_s,
diff --git a/lib/travis/api/v3/routes.rb b/lib/travis/api/v3/routes.rb
index 6c78a64f..e911ac78 100644
--- a/lib/travis/api/v3/routes.rb
+++ b/lib/travis/api/v3/routes.rb
@@ -19,6 +19,11 @@ module Travis::API::V3
       get :for_current_user
     end
 
+    resource :build do
+      route '/build/{build.id}'
+      get :find
+    end
+
     resource :organization do
       route '/org/{organization.id}'
       get :find
diff --git a/lib/travis/api/v3/services.rb b/lib/travis/api/v3/services.rb
index 3148f9d8..5e543412 100644
--- a/lib/travis/api/v3/services.rb
+++ b/lib/travis/api/v3/services.rb
@@ -2,6 +2,7 @@ module Travis::API::V3
   module Services
     extend ConstantResolver
 
+    Build         = Module.new { extend Services }
     Organization  = Module.new { extend Services }
     Organizations = Module.new { extend Services }
     Repositories  = Module.new { extend Services }
diff --git a/spec/v3/service_index_spec.rb b/spec/v3/service_index_spec.rb
index 6143d8a3..ce53c2e4 100644
--- a/spec/v3/service_index_spec.rb
+++ b/spec/v3/service_index_spec.rb
@@ -12,6 +12,8 @@ describe Travis::API::V3::ServiceIndex do
         "find"              => [{"request-method"=>"GET",  "uri-template"=>"#{path}repo/{repository.id}"}] },
       "repositories"        =>  {
         "for_current_user"  => [{"request-method"=>"GET",  "uri-template"=>"#{path}repos"}] },
+      "build"               =>  {
+        "find"              => [{"request-method"=>"GET",  "uri-template"=>"#{path}build/{build.id}"}] },
       "organizations"       =>  {
         "for_current_user"  => [{"request-method"=>"GET",  "uri-template"=>"#{path}orgs"}] },
       "organization"        =>  {
diff --git a/spec/v3/services/repositories/for_current_user_spec.rb b/spec/v3/services/repositories/for_current_user_spec.rb
index 13e2ac3d..8cffba25 100644
--- a/spec/v3/services/repositories/for_current_user_spec.rb
+++ b/spec/v3/services/repositories/for_current_user_spec.rb
@@ -32,6 +32,7 @@ describe Travis::API::V3::Services::Repositories::ForCurrentUser do
           "login"         => "svenfuchs" },
         "last_build"      => {
           "@type"         => "build",
+          "@href"         => "/v3/build/#{repo.last_build_id}",
           "id"            => repo.last_build_id,
           "number"        => "2",
           "state"         => "passed",
diff --git a/spec/v3/services/repository/find_spec.rb b/spec/v3/services/repository/find_spec.rb
index af7c9028..f3033502 100644
--- a/spec/v3/services/repository/find_spec.rb
+++ b/spec/v3/services/repository/find_spec.rb
@@ -23,6 +23,7 @@ describe Travis::API::V3::Services::Repository::Find do
         "login"         => "svenfuchs" },
       "last_build"      => {
         "@type"         => "build",
+        "@href"         => "/v3/build/#{repo.last_build_id}",
         "id"            => repo.last_build_id,
         "number"        => "2",
         "state"         => "passed",
@@ -94,6 +95,7 @@ describe Travis::API::V3::Services::Repository::Find do
         "login"         => "svenfuchs" },
       "last_build"      => {
         "@type"         => "build",
+        "@href"         => "/v3/build/#{repo.last_build_id}",
         "id"            => repo.last_build_id,
         "number"        => "2",
         "state"         => "passed",
@@ -150,6 +152,7 @@ describe Travis::API::V3::Services::Repository::Find do
         "login"         => "svenfuchs" },
       "last_build"      => {
         "@type"         => "build",
+        "@href"         => "/v3/build/#{repo.last_build_id}",
         "id"            => repo.last_build_id,
         "number"        => "2",
         "state"         => "passed",
@@ -212,6 +215,7 @@ describe Travis::API::V3::Services::Repository::Find do
         "login"         => "svenfuchs" },
       "last_build"      => {
         "@type"         => "build",
+        "@href"         => "/v3/build/#{repo.last_build_id}",
         "id"            => repo.last_build_id,
         "number"        => "2",
         "state"         => "passed",