diff --git a/lib/travis/api/v3/renderer/lint.rb b/lib/travis/api/v3/renderer/lint.rb
index 2fb59bb9..7c782a2a 100644
--- a/lib/travis/api/v3/renderer/lint.rb
+++ b/lib/travis/api/v3/renderer/lint.rb
@@ -1,10 +1,21 @@
 module Travis::API::V3
   module Renderer::Lint
+    AVAILABLE_ATTRIBUTES = [ :warnings ]
     extend self
 
-    def render(payload)
-      # Renderer.render_value(payload)
-      puts payload
+    def available_attributes
+      AVAILABLE_ATTRIBUTES
+    end
+
+    def render(lint, **)
+      {
+        :@type       => 'lint'.freeze,
+        :warnings    => warnings_for(lint)
+      }
+    end
+
+    def warnings_for(lint)
+      lint.nested_warnings.map { |k, m| { key: k, message: m } }
     end
   end
 end
diff --git a/lib/travis/api/v3/router.rb b/lib/travis/api/v3/router.rb
index 28085e81..91c5fd4a 100644
--- a/lib/travis/api/v3/router.rb
+++ b/lib/travis/api/v3/router.rb
@@ -23,7 +23,7 @@ module Travis::API::V3
       metrics.name_after(factory)
 
       filtered = factory.filter_params(env_params)
-      service  = factory.new(access_control, filtered.merge(params))
+      service  = factory.new(access_control, filtered.merge(params), env['rack.input'.freeze])
 
       metrics.tick(:prepare)
       result   = service.run
diff --git a/lib/travis/api/v3/service.rb b/lib/travis/api/v3/service.rb
index f627b74c..fa63ecf1 100644
--- a/lib/travis/api/v3/service.rb
+++ b/lib/travis/api/v3/service.rb
@@ -42,13 +42,14 @@ module Travis::API::V3
       Queries[result_type]
     end
 
-    attr_accessor :access_control, :params
+    attr_accessor :access_control, :params, :request_body
 
-    def initialize(access_control, params)
+    def initialize(access_control, params, request_body)
       @access_control = access_control
       @params         = params
       @queries        = {}
       @github         = {}
+      @request_body   = request_body
     end
 
     def query(type = result_type)
diff --git a/lib/travis/api/v3/services/lint/lint.rb b/lib/travis/api/v3/services/lint/lint.rb
index 62dd43fe..e3e5cf2f 100644
--- a/lib/travis/api/v3/services/lint/lint.rb
+++ b/lib/travis/api/v3/services/lint/lint.rb
@@ -1,12 +1,12 @@
+require 'travis/yaml'
+
 module Travis::API::V3
   class Services::Lint::Lint < Service
+    params "content"
     def run!
-      # request.body.rewind
-      # content  = params[:content] || request.body.read
-      # parsed   = Travis::Yaml.parse(content)
-      # warnings = parsed.nested_warnings.map { |k, m| { key: k, message: m } }
-      # payload = { lint: { warnings: warnings } }.to_json
-      
+      request_body.rewind
+      content  = params[:content] || request_body.read
+      parsed = Travis::Yaml.parse(content)
     end
   end
 end
diff --git a/spec/v3/services/lint/lint_spec.rb b/spec/v3/services/lint/lint_spec.rb
new file mode 100644
index 00000000..e111f33a
--- /dev/null
+++ b/spec/v3/services/lint/lint_spec.rb
@@ -0,0 +1,40 @@
+require 'spec_helper'
+
+describe Travis::API::V3::Services::Lint::Lint do
+    let(:content) { "foo: bar" }
+    let(:parsed_body) { JSON.load(last_response.body) }
+
+  describe "accepts content in parameter" do
+    before        { post("v3/lint", content: content )  }
+    example       { expect(last_response).to be_ok }
+    example       { expect(parsed_body).to be == {
+                    "@warnings"         => [{
+                      "@type"           => "warning",
+                      "message"         => "query parameter foo: bar not whitelisted, ignored",
+                      "warning_type"    => "ignored_parameter", "parameter"=>"foo: bar"}],
+                    "@type"             =>  "lint",
+                    "warnings"          => [{
+                      "key"             => [],
+                      "message"         => "unexpected key \"foo\", dropping"}, {
+                      "key"             => [],
+                      "message"         => "missing key \"language\", defaulting to \"ruby\""}]}
+                  }
+  end
+
+  describe "accepts content as body" do
+    before        { post("/v3/lint", content)  }
+    example       { expect(last_response).to be_ok }
+    example       { expect(parsed_body).to be == {
+                    "@warnings"         => [{
+                      "@type"           => "warning",
+                      "message"         => "query parameter foo: bar not whitelisted, ignored",
+                      "warning_type"    => "ignored_parameter", "parameter"=>"foo: bar"}],
+                    "@type"             =>  "lint",
+                    "warnings"          => [{
+                      "key"             => [],
+                      "message"         => "unexpected key \"foo\", dropping"}, {
+                      "key"             => [],
+                      "message"         => "missing key \"language\", defaulting to \"ruby\""}]}
+                  }
+  end
+end