rg/reference/edit.html" class="external-link">usethis::edit_r_environ()</a></code> to open your .Renviron file and add an API key as an environmental variable. For example, add the line <code>GEOCODIO_API_KEY="YourAPIKeyHere"</code></p><ul><li><p><code>"osm"</code>: <a href="https://nominatim.org" class="external-link">Nominatim</a>.</p></li>
<li><p><code>"census"</code>: <a href="https://geocoding.geo.census.gov/" class="external-link">US Census</a>. Geographic coverage is limited to the United States. Bat