ContentPay

Inspiration

We were frustrated that true micropayments don’t work online. If a creator charges $0.25, traditional processors take more than the payment itself. We wanted to build infrastructure that makes small, granular payments economically possible — and change how creators monetize on the internet.

What it does

ContentPay is a payments API that enables micropayments for digital content. Users deposit once via Solana, and after that all purchases — even sub-cent amounts — are handled through an internal ledger with no per-transaction fee floor. This API can be implemented by any creator using our SDK for seamless transactions

How we built it

We built a Solana-based deposit system that verifies on-chain transactions and credits a USD wallet internally. From there, purchases and timed billing are handled through atomic ledger updates, with a secure SDK and cross-origin checkout flow.

Challenges we ran into

Handling money required strict correctness — preventing double-counting, ensuring atomic debits, and managing price volatility. We also had to balance blockchain infrastructure with a simple, seamless user experience.

Accomplishments that we're proud of

ContentPay is live and usable today. We successfully integrated Solana and Stripe into one API and proved that sub-cent, real-time billing works in production.

What we learned

We learned that payments are fundamentally an infrastructure problem. Security, idempotency, and developer experience matter more than flashy features.

What's next for ContentPay

Next, we plan to improve onboarding, add analytics for creators, and build deeper integrations with content platforms to make micropayments a standard part of the web.

Built With

• crypto
• javascript
• node.js
• solana