Web3 Tech Brief By HackerNoon

This story was originally published on HackerNoon at: https://hackernoon.com/the-stablecoin-market-has-entered-its-payments-infrastructure-phase.
Stablecoins are shifting from crypto trading tools to payment infrastructure, driven by card spend, B2B payments, PIX integration, and regulation.
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This story was written by: @sriram-ramakrishnan. Learn more about this writer by checking @sriram-ramakrishnan's about page, and for more stories, please visit hackernoon.com.

TL;DR: The interesting stablecoin story in 2026 isn't crypto — it's plumbing. Card spend on stablecoin rails roughly quadrupled year over year, real-world stablecoin payments hit an estimated $350–550B, and the money is going local: intra-country volume climbed from ~50% to ~75% of payments in two years. Brazil is the proof of concept — a real-pegged stablecoin went from near-zero to ~$400M/month once it plugged into PIX. And the incumbents you'd expect to get disrupted — Visa, Stripe, Shopify — aren't fighting this. They're quietly rebuilding the payments stack on stablecoin rails.

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