{"library":"massive-api-client","type":"library","category":null,"description":"Official Python client for Massive.com (formerly Polygon.io) REST and WebSocket financial data APIs. Polygon.io rebranded as Massive.com on October 30, 2025. Package renamed from polygon-api-client. Import path changed from 'polygon' to 'massive'. Both api.polygon.io and api.massive.com remain operational. Current stable version follows the polygon-api-client release cadence.","language":"python","status":"active","version":"2.0.0","tags":["financial-data","stocks","options","forex","crypto","websocket","rest-api","polygon","massive","market-data"],"install":[{"cmd":"pip install massive-api-client","imports":["from massive import RESTClient","from massive.websocket import WebSocketClient"]},{"cmd":"pip install polygon-api-client","imports":[]}],"homepage":"https://massive.com","github":null,"docs":null,"changelog":null,"pypi":"https://pypi.org/project/massive-api-client/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"3.10–3.9","success_rate":90,"avg_install_s":2.2,"avg_import_s":0.98,"wheel_type":"wheel"},"url":"https://checklist.day/v1/registry/massive-api-client/compatibility"},"provenance":{"verified_status":"passing","verified_at":"Sun Jun 28","last_verified":"Sun Jun 28","next_check":"Tue Jul 28","install_tag":null}}