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Sebastian Serrano

Things Sebastian Says on Podcasts

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Sebastian Serrano has been a guest on Bankless .

Recently: “Tokenizing Latin America: Six Currencies, One Financial System | Sebastian Serrano” on Bankless (November 2026).

What They Said

“More and more fintechs are using stablecoins in the back with the users not knowing it. And I think that is very likely the future. Crypto is going to power a lot of experiences and people likely are not going to know that they're using it.” — Sebastian Serrano, Bankless

The host asked how a bank-to-bank payment from Brazil to Argentina works today. Serrano described the common routes and said stablecoin rails already sit behind many cross-border payments without users noticing.

Bankless · 2026-11-09 Permalink → Listen →
Bankless Around 24:52 into the episode
Sebastian Serrano

…So it's quite substantial. And yields are much higher. So like yields of Argentinian pesos is 25% right now. Brazilian reals is 13, 15. So it's smaller money supply, but larger yields. How much of that gets tokenized? Well, we'll try to today zero, it's 0.002%. We're going to try to make it 1%.

David Hoffman

Can you walk me through a bank-to-bank transfer across some of these countries? So like Brazil to Argentina, for example, without using crypto or blockchain. How does a payment today go from a Brazilian bank to an Argentine bank?

Sebastian Serrano

…like Uruguay Chile Peru they they don't have real-time payment networks but they are all copying Brazil the first one to launch it was Brazil with PICS and everybody is launching their own version of PICS across the region and and that and that together with the Understanding of crypto is all getting interwined and connected. The use of what is called the stablecoin sanguish is very common. So more and more fintechs are using stablecoins in the back with the users not knowing it. And I think that is very likely the future. Crypto is going to power a lot of experiences and people likely are not going to know that they're using it.

David Hoffman

So with all of these currencies that you've tokenized, the six currencies, is that a B2B to see product? Is that also a consumer product as well? Who is that really for? And how is that really kind of changing the topology of bank payments across countries?

Sebastian Serrano

So we call it a platform. So first thing is having a Mint account. So being able to mint and redeem these stable coins locally. We have two go-to-market strategies. One is the crypto as a service, which is this offering that we already have with many banks and fintechs. So integrating it there is…

David Hoffman

The image that is coming together in my mind is like we have this central hub of liquidity with all the different tokenized fiat currencies. You call it wrapped fiat. And that's like the center clearinghouse, if you will, for all of these different trades being made across currencies, all the forex…

Speaker names come from our own diarization. The position is estimated from where the line sits in the episode.
“If you look at DeFi, it's all backwards. In emerging markets, people save in dollars. You go into Morpho or Aave and you put your collateral in and you borrow dollars. But in emerging markets, people save in dollars. They should use that as collateral. … So that's why we also need these local stablecoins on chain, so that we can flip this and be useful for people in emerging markets.” — Sebastian Serrano, Bankless

Serrano was listing use cases for local-currency stablecoins. He argues DeFi lending is built the wrong way round for people who hold dollars but spend and owe in local currency.

Bankless · 2026-11-09 Permalink → Listen →
Bankless Around 17:13 into the episode
Sebastian Serrano

…five, 10 minutes. You do that. Let's say you're a Brazilian. At the end of that five, 10 minutes of onboarding, you finally see a PIX ID. You send a thousand Rails and then you end up buying it or USDC or UZT. And you now have 950 in it. So your first experience using crypto is losing money. Yeah.

David Hoffman

…really frequently have not solved. If I want to fund a non-custodial wallet, the KYC process is completely borked. Like one in 10 chance that I get it correct. And then if I do get it correct, to your point, I'm paying an astronomical amount of fees just to have that money served to me immediately.

Sebastian Serrano

Yeah, so you pay FX and spreads. You want to go back, you pay again. So you now end up with 900. So how do we fix that? And we started to think, well, we need to fix this. And how do we fix this? And we saw, well, first we need to make the onboarding one-to-one. So the user has to pay zero fees on the onboarding. And then we need to make it a deposit on chain. Like it has to be the local representation. So the user can go and click deposit, do the onboarding, get the pix ID. They send a thousand Rails and they had to get a thousand Rails on chain. And that's why we said, well, and then build a business model around managing the float so that we can subsidize the RAMs and be a cost so that we can do it frictionless. So that way the user can be on an on par experience with a fintech. Like it's like the same experience they have on Nubank or Mercado Pabo or Brevolud, like deposit, send a thousand Rails, have a thousand Rails, and a thousand pesos, have a thousand pesos. And then that was the initial trigger. But then we thought, well, like when we started, when we launched it, immediately, Sees really good conversion rates. It is growing really fast. It's like AUM is…

David Hoffman

trying to be defensive, to put your point earlier. They're being defensive with their capital rather than speculative.

Sebastian Serrano

So they should put USDC or UCT as collateral and they should be borrowing local currency. But to be able to borrow local currency from a DeFi protocol, we need the representation of the local currency on chain. So that's why we also need these local stablecoins on chain so that we can flip this and…

David Hoffman

Your checking account isn't public. So why should your crypto be? As AI gets more powerful, your privacy gets weaker. Connecting your identity to your financial history on-chain or off is the easiest it's ever been and will only get easier from here. Every data breach adds another piece to the…

Speaker names come from our own diarization. The position is estimated from where the line sits in the episode.
“Every non-custodial wallet today, the call to action is buy. … At the end of that five, 10 minutes of onboarding, you finally see a PIX ID. You send a thousand reais, you end up buying USDC or USDT, and you now have 950 in it. So your first experience using crypto is losing money.” — Sebastian Serrano, Bankless

Serrano was explaining why a self-custody wallet had poor conversion and retention in Latin America, contrasting it with fintech apps where the first button is deposit rather than buy. Ripio, his company and a sponsor of the episode, sells local stablecoin on-ramps meant to fix this.

Bankless · 2026-11-09 Permalink → Listen →
Bankless Around 15:18 into the episode
Sebastian Serrano

…all these countries. And that is what allows us. I feel like we have been working a decade into building all this plumbing to be able to offer, like to tokenize all these stablecoins, which I think is a key piece of infrastructure for the next phase of crypto. And there's not being a simple right.

David Hoffman

…So you just said that you've been through all of these companies and you have all of the licenses and the regulatory requirements. What does that get you? What purchase does that get you in Latin America: in these days? Why does having all of these licenses important? What does that enable for you?

Sebastian Serrano

…very large company, decent team, like what is going on? And then we realize that what was happening is that if you open a non-custodial wallet, the call to action is very different from what a fintech will do. If you open Nubank, Brevolo, Mercado Pabo, the first call to action is deposit. The button is even in a different color. You open MetaMask, TrustWallet, Coinbase Wallet, WarApp, whatever. Every non-custodial wallet today, the call to action is buy. You click buy, there is a bunch of on-ramps that appear. You click that. You had to go into an onboarding that takes five, 10 minutes. You do that. Let's say you're a Brazilian. At the end of that five, 10 minutes of onboarding, you finally see a PIX ID. You send a thousand Rails and then you end up buying it or USDC or UZT. And you now have 950 in it. So your first experience using crypto is…

David Hoffman

I think that's a universal experience for crypto people, especially in self-custodial wallets. There's a problem that we still really frequently have not solved. If I want to fund a non-custodial wallet, the KYC process is completely borked. Like one in 10 chance that I get it correct. And then if…

Sebastian Serrano

Yeah, so you pay FX and spreads. You want to go back, you pay again. So you now end up with 900. So how do we fix that? And we started to think, well, we need to fix this. And how do we fix this? And we saw, well, first we need to make the onboarding one-to-one. So the user has to pay zero fees on…

David Hoffman

trying to be defensive, to put your point earlier. They're being defensive with their capital rather than speculative.

Speaker names come from our own diarization. The position is estimated from where the line sits in the episode.

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