Very simple API for geocoding UK postcodes.
It takes a list of postcodes and returns a dictionary mapping those postcodes to latitudes and longitudes.
See postcodes.py for an explanation on how to run it. Built with flask and suitable for deployment on Heroku.
The postcode list is combined from the CSV fields at http://www.freemaptools.com/download-uk-postcode-lat-lng.htm (CSV ukpostcodes.zip) and http://www.doogal.co.uk/UKPostcodes.php (CSV on download dropdown).