{"id":54921,"library":"cats-core-3","title":"Cats Core","description":"Cats is a library that provides abstractions for functional programming in Scala, including type classes and data types.","status":"active","version":"2.13.0","language":"java","source_language":null,"source_url":"https://github.com/typelevel/cats","tags":["functional-programming","type-classes","scala","library"],"install":[{"cmd":"<dependency>\n  <groupId>org.typelevel</groupId>\n  <artifactId>cats-core_3</artifactId>\n  <version>2.13.0</version>\n</dependency>","lang":"xml","label":"Maven"},{"cmd":"implementation 'org.typelevel:cats-core_3:2.13.0'","lang":"groovy","label":"Gradle"}],"dependencies":[],"imports":[{"symbol":"cats.implicits","correct":"cats.implicits._"}],"quickstart":{"code":"import cats.implicits._\n\nobject Main extends App {\n  val result = 1 |+| 2\n  println(result)\n}","lang":"scala","description":"Demonstrates basic usage of Cats' semigroup syntax."},"warnings":[],"env_vars":null,"search_vec":"'abstract':9 'cat':1,3 'class':17,26 'core':2 'data':19 'function':11,22 'functional-program':21 'includ':15 'librari':6,28 'program':12,23 'provid':8 'scala':14,27 'type':16,20,25 'type-class':24","created_at":"2026-06-15T09:29:35.132729+00:00","updated_at":"2026-06-15T09:29:35.132729+00:00","problems":[],"ecosystem":"maven","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://typelevel.org/cats","github":"https://github.com/typelevel/cats","docs":"https://appdoc.app/artifact/org.typelevel/cats-core_3/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-15","next_check":"2026-12-12","install_tag":null}}