The new lists API lets you process spreadsheets up to 1GB in size via API. Data for spreadsheets processed through the lists API are automatically deleted 72 hours after they have finished processing. Name Batch size Type Format Supports fields Supports forward & reverse geocoding Single geocoding 1 Synchronous JSON yes yes Batch geocoding Up to 10,000 per batch Synchronous JSON yes yes List geocoding Up to 10,000,000+ Asynchronous CSV/TSV/Excel yes yes