Here is what will be good-to-have from phishtank.com API:
- Good documentation about each interface e.g. how is callback_url used by auth.frob.request API ?
- Description of all possible fields in return response (all possible XML elements and their possible values)
- Some test URL's and emails which will return known responses (i.e. phishy URL, good URL, not in the database etc.)
- Developer mailing list/wiki
- Response should always honor the responseformat parameter if specified and valid