The problem Payflow solves

Payflow makes it easy for users to leverage web3 social graph to simplify onchain social payment: paying in social feed, p2p, paying for gift storage.

Payflow also solve value fragmentation by integrating existing wallets (fc verifications, coinbase smart wallet, and privy cross-app wallets to be implemented)

Challenges I ran into

Integrating many social graph APIs, and make sure it's stable, cached, and updated whenever required!