diff --git a/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/HasKotlinDependencies.kt b/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/HasKotlinDependencies.kt
index d31f668f329..0bd026226aa 100644
--- a/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/HasKotlinDependencies.kt
+++ b/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/HasKotlinDependencies.kt
@@ -10,8 +10,9 @@ import org.gradle.api.artifacts.Dependency
 import org.gradle.api.artifacts.ExternalModuleDependency
 import org.gradle.api.artifacts.ProjectDependency
 import org.gradle.util.ConfigureUtil
+import java.io.File
 
-interface KotlinDependencyHandler : KotlinNpmDependencyHandler {
+interface KotlinDependencyHandler {
     fun api(dependencyNotation: Any): Dependency?
     fun api(dependencyNotation: String, configure: ExternalModuleDependency.() -> Unit): ExternalModuleDependency
     fun <T : Dependency> api(dependency: T, configure: T.() -> Unit): T
@@ -52,6 +53,112 @@ interface KotlinDependencyHandler : KotlinNpmDependencyHandler {
         project(listOf("path", "configuration").zip(listOfNotNull(path, configuration)).toMap())
 
     fun project(notation: Map<String, Any?>): ProjectDependency
+
+    @Deprecated("Declaring NPM dependency without version is forbidden")
+    fun npm(name: String): Dependency
+
+    fun npm(
+        name: String,
+        version: String,
+        generateKotlinExternals: Boolean
+    ): Dependency
+
+    fun npm(
+        name: String,
+        version: String
+    ): Dependency = npm(
+        name = name,
+        version = version,
+        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
+    )
+
+    fun npm(
+        name: String,
+        directory: File,
+        generateKotlinExternals: Boolean
+    ): Dependency
+
+    fun npm(
+        name: String,
+        directory: File
+    ): Dependency = npm(
+        name = name,
+        directory = directory,
+        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
+    )
+
+    fun npm(
+        directory: File,
+        generateKotlinExternals: Boolean
+    ): Dependency
+
+    fun npm(
+        directory: File
+    ): Dependency = npm(
+        directory = directory,
+        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
+    )
+
+    fun devNpm(
+        name: String,
+        version: String
+    ): Dependency
+
+    fun devNpm(
+        name: String,
+        directory: File
+    ): Dependency
+
+    fun devNpm(
+        directory: File
+    ): Dependency
+
+    fun optionalNpm(
+        name: String,
+        version: String,
+        generateKotlinExternals: Boolean
+    ): Dependency
+
+    fun optionalNpm(
+        name: String,
+        version: String
+    ): Dependency = optionalNpm(
+        name = name,
+        version = version,
+        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
+    )
+
+    fun optionalNpm(
+        name: String,
+        directory: File,
+        generateKotlinExternals: Boolean
+    ): Dependency
+
+    fun optionalNpm(
+        name: String,
+        directory: File
+    ): Dependency = optionalNpm(
+        name = name,
+        directory = directory,
+        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
+    )
+
+    fun optionalNpm(
+        directory: File,
+        generateKotlinExternals: Boolean
+    ): Dependency
+
+    fun optionalNpm(
+        directory: File
+    ): Dependency = optionalNpm(
+        directory = directory,
+        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
+    )
+
+    fun peerNpm(
+        name: String,
+        version: String
+    ): Dependency
 }
 
 interface HasKotlinDependencies {
diff --git a/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinNpmDependencyHandler.kt b/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinNpmDependencyHandler.kt
deleted file mode 100644
index f8b95978372..00000000000
--- a/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinNpmDependencyHandler.kt
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.gradle.plugin
-
-import org.gradle.api.artifacts.Dependency
-import java.io.File
-
-interface KotlinNpmDependencyHandler {
-    @Deprecated("Declaring NPM dependency without version is forbidden")
-    fun npm(name: String): Dependency
-
-    fun npm(
-        name: String,
-        version: String,
-        generateKotlinExternals: Boolean
-    ): Dependency
-
-    fun npm(
-        name: String,
-        version: String
-    ): Dependency = npm(
-        name = name,
-        version = version,
-        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
-    )
-
-    fun npm(
-        name: String,
-        directory: File,
-        generateKotlinExternals: Boolean
-    ): Dependency
-
-    fun npm(
-        name: String,
-        directory: File
-    ): Dependency = npm(
-        name = name,
-        directory = directory,
-        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
-    )
-
-    fun npm(
-        directory: File,
-        generateKotlinExternals: Boolean
-    ): Dependency
-
-    fun npm(
-        directory: File
-    ): Dependency = npm(
-        directory = directory,
-        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
-    )
-
-    fun devNpm(
-        name: String,
-        version: String
-    ): Dependency
-
-    fun devNpm(
-        name: String,
-        directory: File
-    ): Dependency
-
-    fun devNpm(
-        directory: File
-    ): Dependency
-
-    fun optionalNpm(
-        name: String,
-        version: String,
-        generateKotlinExternals: Boolean
-    ): Dependency
-
-    fun optionalNpm(
-        name: String,
-        version: String
-    ): Dependency = optionalNpm(
-        name = name,
-        version = version,
-        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
-    )
-
-    fun optionalNpm(
-        name: String,
-        directory: File,
-        generateKotlinExternals: Boolean
-    ): Dependency
-
-    fun optionalNpm(
-        name: String,
-        directory: File
-    ): Dependency = optionalNpm(
-        name = name,
-        directory = directory,
-        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
-    )
-
-    fun optionalNpm(
-        directory: File,
-        generateKotlinExternals: Boolean
-    ): Dependency
-
-    fun optionalNpm(
-        directory: File
-    ): Dependency = optionalNpm(
-        directory = directory,
-        generateKotlinExternals = DEFAULT_GENERATE_KOTLIN_EXTERNALS
-    )
-
-    fun peerNpm(
-        name: String,
-        version: String
-    ): Dependency
-}
-
-const val DEFAULT_GENERATE_KOTLIN_EXTERNALS = true
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/NpmConstants.kt b/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/NpmConstants.kt
new file mode 100644
index 00000000000..1a9fb97f25f
--- /dev/null
+++ b/libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/NpmConstants.kt
@@ -0,0 +1,8 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.plugin
+
+const val DEFAULT_GENERATE_KOTLIN_EXTERNALS = true
\ No newline at end of file