{"library":"localstack-ext","type":"library","category":null,"description":"LocalStack Extensions (`localstack-ext`) is a Python library that enables developers to extend and customize LocalStack, a fully functional local cloud stack. Extensions run as Python applications within the LocalStack container, allowing for new service emulators, modifications to existing services, and custom functionality. The library is currently at version 2026.3.0 and follows a monthly calendar versioning cadence (YYYY.MM.patch).","language":"python","status":"active","version":"2026.3.0","tags":["LocalStack","AWS","cloud emulator","extension","development","testing","mocking"],"install":[{"cmd":"pip install localstack-ext","imports":["from localstack_ext.api import Extension"]}],"homepage":"https://localstack.cloud","github":"https://github.com/localstack/localstack","docs":"https://docs.localstack.cloud","changelog":null,"pypi":"https://pypi.org/project/localstack-ext/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"3.10–3.9","success_rate":80,"avg_install_s":21.8,"avg_import_s":null,"wheel_type":"sdist"},"url":"https://checklist.day/v1/registry/localstack-ext/compatibility"},"provenance":{"verified_status":"import_fail","verified_at":"Fri Jul 03","last_verified":"Fri Jul 03","next_check":"Fri Jul 10","install_tag":null}}