diff --git a/build.gradle.kts b/build.gradle.kts
index 02c4186..8a2f255 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -64,5 +64,7 @@
     dependency("org.jenkinsci.plugins", "pipeline-model-extensions", "1.2.5")
     dependency("org.jenkins-ci.plugins", "http_request", "1.8.21")
     dependency("org.jenkins-ci.plugins", "pipeline-utility-steps", "2.2.0")
+    dependency("org.jenkins-ci.plugins", "config-file-provider", "3.4.1")
+    dependency("org.jenkins-ci.plugins", "credentials-binding", "1.17")
   }
 }
diff --git a/test/integration/groovy/uk/org/floop/jenkins_pmd/DrafterTests.groovy b/test/integration/groovy/uk/org/floop/jenkins_pmd/DrafterTests.groovy
index d45330e..b30c0fd 100644
--- a/test/integration/groovy/uk/org/floop/jenkins_pmd/DrafterTests.groovy
+++ b/test/integration/groovy/uk/org/floop/jenkins_pmd/DrafterTests.groovy
@@ -1,6 +1,15 @@
 package uk.org.floop.jenkins_pmd
 
+import com.cloudbees.plugins.credentials.CredentialsScope
+import com.cloudbees.plugins.credentials.SystemCredentialsProvider
+import com.cloudbees.plugins.credentials.common.StandardUsernamePasswordCredentials
+import com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl
 import com.github.tomakehurst.wiremock.junit.WireMockRule
+import org.jenkinsci.lib.configprovider.ConfigProvider
+import org.jenkinsci.plugins.configfiles.ConfigFileStore
+import org.jenkinsci.plugins.configfiles.GlobalConfigFiles
+import org.jenkinsci.plugins.configfiles.custom.CustomConfig
+
 import static com.github.tomakehurst.wiremock.client.WireMock.*
 import static com.github.tomakehurst.wiremock.core.WireMockConfiguration.wireMockConfig
 
@@ -25,6 +34,57 @@
         RuleBootstrapper.setup(rule)
     }
 
+    @Before
+    void setupConfigFile() {
+        GlobalConfigFiles globalConfigFiles = rule.jenkins
+                .getExtensionList(ConfigFileStore.class)
+                .get(GlobalConfigFiles.class)
+        CustomConfig.CustomConfigProvider configProvider = rule.jenkins
+                .getExtensionList(ConfigProvider.class)
+                .get(CustomConfig.CustomConfigProvider.class)
+        globalConfigFiles.save(
+                new CustomConfig("pmd", "config.json", "Details of endpoint URLs and credentials", '''{
+  "pmd_api": "https://production-drafter-ons-alpha.publishmydata.com",
+  "credentials": "onspmd",
+  "pipeline_api": "http://production-grafter-ons-alpha.publishmydata.com/v1/pipelines",
+  "default_mapping": "https://github.com/ONS-OpenData/ref_trade/raw/master/columns.csv",
+  "base_uri": "http://gss-data.org.uk"
+}''', configProvider.getProviderId()))
+    }
+
+    @Before
+    void setupCredentials() {
+        StandardUsernamePasswordCredentials key = new UsernamePasswordCredentialsImpl(
+                CredentialsScope.GLOBAL,
+                "onspmd", "Access to PMD APIs", "admin", "admin")
+        SystemCredentialsProvider.getInstance().getCredentials().add(key)
+        SystemCredentialsProvider.getInstance().save()
+    }
+
+    @Test
+    void "credentials and endpoint URLs stored outside library"() {
+        final CpsFlowDefinition flow = new CpsFlowDefinition('''
+        node {
+            configFileProvider([configFile(fileId: 'pmd', variable: 'configfile')]) {
+                def config = readJSON(text: readFile(file: configfile))
+                String PMD = config['pmd_api']
+                String credentials = config['credentials']
+                echo "API URL = <$PMD>"
+                withCredentials([usernamePassword(credentialsId: credentials, usernameVariable: 'USER', passwordVariable: 'PASS')]) {
+                    echo "User = <$USER>"
+                    echo "Pass = <$PASS>"
+                }
+             }
+        }'''.stripIndent(), true)
+        final WorkflowJob workflowJob = rule.createProject(WorkflowJob, 'project')
+        workflowJob.definition = flow
+
+        final WorkflowRun firstResult = rule.buildAndAssertSuccess(workflowJob)
+        rule.assertLogContains('API URL = <http', firstResult)
+        rule.assertLogContains('User = <', firstResult)
+        rule.assertLogContains('Pass = <', firstResult)
+    }
+
     @Test
     void "testing library that uses declarative pipeline libraries"() {
         stubFor(get(urlMatching("/v1/draftsets.*"))
@@ -38,6 +98,7 @@
 
         final WorkflowRun firstResult = rule.buildAndAssertSuccess(workflowJob)
         rule.assertLogContains('Listing draftsets...', firstResult)
+        verify(getRequestedFor(urlEqualTo("/v1/draftsets")))
     }
 
 }
diff --git a/vars/drafter.groovy b/vars/drafter.groovy
index 756f18e..eeda594 100644
--- a/vars/drafter.groovy
+++ b/vars/drafter.groovy
@@ -1,6 +1,8 @@
+import uk.org.floop.jenkins_pmd.Drafter
+
 def listDraftsets(String baseUrl, String credentials, String include) {
     echo "Listing draftsets..."
-    def response = httpRequest(acceptType: 'APPLICATION_JSON',
+/*    def response = httpRequest(acceptType: 'APPLICATION_JSON',
             authentication: credentials,
             httpMode: 'GET',
             url: "${baseUrl}/v1/draftsets?include=${include}")
@@ -8,7 +10,8 @@
         return readJSON(text: response.content)
     } else {
         error "Problem listing draftsets ${response.status} : ${response.content}"
-    }
+    } */
+    return Drafter.listDraftsets()
 }
 
 def findDraftset(String baseUrl, String credentials, String displayName) {