Kobaru Blog is a product-marketing newsletter for a payment layer that lets APIs charge per request via x402 micropayments and MCP tools. Issues explain how to expose existing APIs to AI agents and monetise them without code changes, plus the case for purpose-built blockchain infrastructure.
Website: https://blog.kobaru.io/
Research-driven essays on crypto and fintech businesses, examining who captures revenue in onchain finance, how companies like Rain and Visa build and defend their economics. Readers get sourced, analytical breakdowns of retained revenue, valuations and payment infrastructure aimed at investors.
Patrick McKenzie (patio11) podcast where he reads and expands on his essays about the practical mechanics of money, payments, banking, and consumer travel rights, with worked examples. Readers get clear explanations of how finance and travel systems actually behave, drawn from his industry experience.
Bits about Money is a long-form newsletter analysing the financial infrastructure behind everyday money, including bank fraud enforcement, consumer protection regulation like Reg E, and the politics of fraud. Readers get detailed, historically grounded explanations of how payment systems and their rules actually work.
A daily crypto and fintech newsletter that mixes original explainers with guest essays on topics like stablecoin payments, AI data markets and crypto-adjacent lending. Readers get narrative-driven analysis of how these markets work, alongside some sponsored product placements.
One short email a week with hand-picked newsletters from the index. Free, no spam, unsubscribe anytime.
