Changes in version 1.0.0 (2022-07-22) Released to rOpenSci. NEW FEATURES - Wrapper functions for all services available from the Environmental Protection Agency (EPA) Air Quality API. - Caching for previously made requests. - Comprehensive testing with mocks using httptest. - CI/CD for automatic pull request checks including test coverage and R-CMD-check. MINOR IMPROVEMENTS - Authentication using .Renviron. - Typo's and formatting for code. - Function to get an API key from within epair. - Change print() to message() for expected error types. - Redact mock directory paths to be less than 100 bytes for portability. - Documentation mismatches fixed. - A contributing file. BUG FIXES - Failing tests and installation in Windows and Ubuntu. - Problem with name argument in add.variables(). DEPRECATED OR DEFUNCT - Removed scraping logic used to make loaded data structures. Changes in version 0.1.0 (2020-12-07) NEW FEATURES - Loaded in variables to search for and query endpoint and variables in the original Environmental Protection Agency Air Quality API. - General purpose API calling functions with specified variables and endpoints for services. - Simple test suites using testthat. - Simple scraping logic to make service and variable data structures.