CDC Socrata Open Data API (data.cdc.gov)

The CDC Socrata Open Data API (SODA) provides programmatic JSON, CSV, and GeoJSON access to hundreds of data.cdc.gov datasets covering COVID-19 case surveillance, vaccination coverage, excess deaths, flu surveillance, PRAMStat, PLACES small-area estimates, environmental public health tracking, and chronic disease indicators. Supports SoQL filtering, aggregation, pagination, and authenticated app tokens for higher rate limits.