EVE Swagger Interface
EVE Swagger Interface (ESI) is an API to get data from the EVE server. It replaces CREST and the XML API which will shut down on May 8th, 2018.[1]
Remember that scamming with API is specifically not allowed[2]
Several guides on how to use ESI exist:
Further some libraries exist to use ESI with Python.
Api authorization managment
You can manage API permissions from you at https://community.eveonline.com/support/third-party-applications/
In here you can see all applications that have access to your API. You can see exactly what scopes you have authorized for them. You can also revoke authorizations.
See also
https://community.eveonline.com/news/dev-blogs/introducing-esi/
http://eveonline-third-party-documentation.readthedocs.io/en/latest/crest/index.html
https://esi.tech.ccp.is/latest/