Launching on Product Hunt tomorrow: pay-per-use text AI with USDC micropayments (no subscription, 100 free credits)

Tomorrow (April 7 at 12:01 AM PDT) I'm launching TextAI API on Product Hunt. Here's the 2-minute story of why I built it and what it does. The problem: $0.30 kills micropayments I wanted to build a text processing pipeline — summarize articles, extract keywords, translate content. The usual suspects (OpenAI, AWS Comprehend) either require monthly subscriptions or charge minimum fees that make per-call pricing uneconomical. The math is brutal: Stripe charges $0.30 + 2.9% per transaction. If your API call costs $0.01, the payment processing fee is 30x the product cost. You're forced to bundle users into monthly plans just to make the economics work. I wanted a different model: pay exactly for what you call, with no minimum. The solution: USDC on Solana Solana transaction fees are ~$0.00025. That makes true micropayments viable at any scale. TextAI API works like a prepaid SIM card: Get an API key (instant, no email required) Top up with USDC credits when you need them Pay per call — noth