{"library":"localstack-core","type":"library","category":null,"description":"LocalStack Core is the foundational Python library and runtime for LocalStack, a robust cloud service emulator that allows developers to run AWS applications and Lambdas entirely on their local machine or in CI environments without connecting to a remote cloud provider. The library underpins the LocalStack CLI and Docker container, providing the core emulation capabilities. As of the 2026.03.0 release, LocalStack has adopted calendar versioning (YYYY.MM.patch) and follows a monthly release cadence.","language":"python","status":"active","version":"2026.3.0","tags":["aws","cloud emulator","local development","testing","serverless","python","development tools"],"install":[{"cmd":"pip install localstack-core","imports":["from localstack.extensions.api import Extension"]},{"cmd":"pip install localstack # For the LocalStack CLI (recommended for general use)","imports":[]}],"homepage":"https://localstack.cloud","github":null,"docs":"https://docs.localstack.cloud","changelog":null,"pypi":"https://pypi.org/project/localstack-core/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"3.10–3.9","success_rate":75,"avg_install_s":7.6,"avg_import_s":null,"wheel_type":"wheel"},"url":"https://checklist.day/v1/registry/localstack-core/compatibility"},"provenance":{"verified_status":"import_fail","verified_at":"Fri Jul 03","last_verified":"Fri Jul 03","next_check":"Fri Jul 10","install_tag":null}}