Initial attack vectors for recon usually involve utilizing pay-for-data/API (Recon-NG), or paying to utilize transforms (Maltego) to get data mining results. Skiptracer utilizes some basic python webscraping (BeautifulSoup) of PII paywall sites to compile passive information on a target on a ramen noodle budget.
Example:
Installation
$ git clone https://github.com/xillwillx/skiptracer.git skiptracer
$ cd skiptracer
Install requirements$ pip install -r requirements.txt
Run$ python skiptracer.py -l (phone|email|sn|name|plate)
Usage
Full details on how to use Skiptracer are on the wiki located here