"This is a prototype interface designed for the Boston Desegregation Archive: Annotated Case Law and Digital Reference project, a collaboration between the Boston Research Center, University Libraries, and NuLawLab at Northeastern University."

"The Citing Slavery Project provides a database of slave cases and the modern cases that continue to cite them as precedent."

The Constitution Annotated by Library of Congress uses the CAP API by linking to cases in footnotes and annotations.

Journal Citator tool by King Xia (HLS, 2020).

BuzzyCite is a third-party web application that uses the CAP API to help people search cases and create and save citations for use in documents.

"Fastlaw is a law-specific word embedding model trained on a large corpus of law-related text data provided by the Caselaw Access Project (CAP)."

"CiteURL is an extensible tool to process long and shortform legal citations in text and generate links to various websites where you can view the cited language for free."

Captools by Eric Nystrom is a "toolkit for legal historians to work with bulk data from the Caselaw Access Project (CAP)".