Early Stage Founders Playbook - Rated 5 out of 5 by indie-hackers and techie founders who love building features and feel hesitant about marketing.
Coinramp - The Coinramp Card lets you spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards
IndieEarnr - 580+ Affiliate Programs for Indie Hackers & Creators
ABcard - ABcard - service allows you to issue an unlimited number of cards to pay for advertising accounts. 3 unique BINs for any work tasks, management of a team of media buyers inside a personal account and complete anonymity when paying for traffic.
Clever - syncing between education applications for K-12 schools
PST.NET - Virtual payment cards for online shopping and advertising