diff --git a/README.md b/README.md
index 6a07357..131b7ac 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,14 @@ GitHub repository that store the tests
 
 GitHub specific branch
 
+### `npm-start`
+
+Run npm start and waits to url before testing
+
+### `wait-for`
+
+Url that npm start command waits for
+
 ## Outputs
 
 ### `result`
@@ -30,6 +38,8 @@ Pull Request number that trigger build.
   with:
     repository-test-name: my-org/my-repo
     repository-test-branch: master # master is default
+    npm-start: true # false is default
+    wait-for: 'http://localhost:8080' # http://localhost:3000 is default
 ```
 
 ## How to get result output
diff --git a/action.yml b/action.yml
index 210f936..7049557 100644
--- a/action.yml
+++ b/action.yml
@@ -8,6 +8,12 @@ inputs:
     description: 'GitHub specific branch'
     default: 'master'
     required: true
+  npm-start:
+    description: 'Run npm start and waits to url before testing'
+    default: false
+  wait-for:
+    description: 'Url that npm start command waits for'
+    default: 'http://localhost:3000'
 outputs:
   result:
     description: 'Jest unit tests JSON results in base64 format.'
@@ -19,3 +25,5 @@ runs:
   args:
     - ${{ inputs.repository-test-name }}
     - ${{ inputs.repository-test-branch }}
+    - ${{ inputs.npm-start }}
+    - ${{ inputs.wait-for }}
diff --git a/entrypoint.sh b/entrypoint.sh
index 4f99e4e..c3163b2 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -3,11 +3,18 @@ set -x
 
 REPOSITORY_NAME=$1
 REPOSITORY_BRANCH=$2
+run_npm_start=$3
+wait_for_url=$4
 
 git clone --branch $REPOSITORY_BRANCH https://github.com/$REPOSITORY_NAME.git /project-tests
 rm -rf /project-tests/.git
 cp -r /project-tests/* .
 npm install
+
+if $run_npm_start ; then
+  npm start & npx wait-on $wait_for_url
+fi
+
 npm test -- --json --outputFile=evaluation.json
 node /evaluator.js evaluation.json .trybe/requirements.json result.json