Explore the Melville Letters and Hamilton Letters datasets. The datasets are freely available as both CSV and API. To use the API, filter by sender, recipient, date, or keywords, then download your results as a CSV.
While the API offers an "open data" approach and allows for the retrieval of data, if you want the bulk data either filtered or not you can find these in our GitHub Repository. We have four main end points as listed above and the JSON allows for multiple interactions with the data.