SubJSON is a simple API that brings you the list of most well-known companies which offer a bug bounty program.
There are two endpoints you are going to use mostly;

• /all
• /all/{companyName}

/all:

Brings the list of companies in JSON.

/all/{companyName}:

Brings the sub-domains of companies owned websites in JSON.

Notes:

• Database will be updated every 2 days at first, and after 2 weeks it will be updated every 3 hours.
• By using extra tools like waybackurls by TomNomNom, you can feed waybackurls with SubJSON output and create a efficient way of gathering archive files.(for bug hunters)