Last updated: March 2026

Brazilian government bonds pay 13.06% annually right now. Mexican CETES pay 5.78%. UK Gilts pay 3.43%. These are government-backed instruments with decades of track record, and until recently, accessing them required a local brokerage account, residency documentation, and sometimes a minimum investment that shut out most retail investors.

Etherfuse is a fintech company that tokenizes government bonds from six countries and puts them on-chain as "stablebonds." Each stablebond is backed 1:1 by the underlying government bond. You buy them with a crypto wallet, they rebase weekly to reflect current yields, and you can withdraw on demand. No brokerage. No residency requirements. No $10,000 minimums.

Etherfuse stablebonds are tokenized government bonds available on-chain, currently covering six countries with yields ranging from 1.4% (EU) to 13.06% (Brazil). Pistachio.fi integrates Etherfuse vaults, giving users gasless access to government bond yields with expert risk grades on every position. For users who prefer pure DeFi yield, lending protocols like Compound and Aave offer competitive rates on stablecoins. Compare the underlying bond ratings, lock-up terms, and currency exposure before choosing between sovereign and DeFi yield.

Key takeaways

• Stablebonds are tokenized government bonds that you buy and hold with a crypto wallet. Each one is backed by a real government bond.

• Six countries covered: Brazil (13.06%), Mexico (5.78%), UK (3.43%), US (3.23%), South Korea (2.25%), and EU (1.4%).

• Weekly rebase: Yields adjust automatically each week based on current bond market rates.

• Pistachio.fi integration: Access Etherfuse stablebond vaults with zero gas fees and expert risk grades through the Pistachio app.

What are stablebonds?

A stablebond is a blockchain token backed by a government bond. When you purchase an Etherfuse stablebond, your money goes to buy the corresponding government security. The token you receive represents fractional ownership of that bond. The yield comes directly from the bond's coupon payments, not from DeFi lending or liquidity provision.

This makes stablebonds fundamentally different from stablecoins. A stablecoin like USDC holds cash reserves and short-term securities to maintain a $1 peg, but it pays you nothing for holding it. A stablebond holds a specific government bond and passes the yield through to you. As Etherfuse explains in their breakdown of stablecoins, stablebonds, and sovereign coins, the distinction comes down to whether the underlying reserve is optimized for stability alone or for yield.

The concept sits within the broader real-world asset (RWA) tokenization movement. According to DefiLlama, tokenized treasury products collectively hold billions in TVL across protocols. The $27 trillion US Treasury market alone represents one of the largest addressable markets for on-chain products.

How do stablebonds work?

The mechanics are straightforward. You deposit funds through the Etherfuse platform and receive stablebond tokens in return. Behind the scenes, Etherfuse purchases the corresponding government bond. Your tokens represent a claim on that bond and its yield.

Every week, Etherfuse runs a rebase. The rebase adjusts your token balance to reflect the yield earned that week. If you hold a Brazilian Tesouro stablebond paying 13.06% annually, your token balance increases by roughly 0.25% each week (13.06% divided by 52 weeks). You do not need to claim, restake, or reinvest. The yield compounds automatically.

Withdrawal works on demand. You can exit your position whenever you want, and the redemption process converts your stablebonds back to the deposit currency. The minimum investment starts at $1, which is a significant departure from traditional bond markets where minimums often sit at $1,000 or higher.

For a deeper look at why bringing bonds on-chain makes economic sense beyond just access, Etherfuse's case for crypto bonds argues that blockchain economies have operated as "coinage-only" systems, and bonds are the missing financial instrument that introduces productive investment incentives.

What stablebonds are available?

Etherfuse currently offers stablebonds backed by government bonds from six countries. The yields reflect current market rates as of March 2026:

The yield-to-rating tradeoff is visible in the data. Brazil's Tesouro pays the highest yield at 13.06%, but carries a BB rating reflecting higher sovereign risk. EU bonds pay the lowest at 1.4%, but carry the highest rating. This is how bond markets have always worked. Stablebonds just removed the geographic and bureaucratic barriers to accessing that spectrum.

Mexico's CETES have a long history. Introduced in 1978, they are the country's oldest short-term debt instrument, with roughly 1,832 billion MXN (approximately $109 billion USD) outstanding. Etherfuse's deep dive on the evolution of CETES covers how these instruments survived the Tequila Crisis of the mid-1990s and have become a benchmark for Mexican fixed income.

On the US side, the USTRY stablebond tokenizes short-term Treasury bills with a weekly maturity cycle and automatic reinvestment. The Etherfuse guide to US treasuries and stablebonds explains how the weekly rebase mechanism handles the rollover.

For a look at how UK government bonds fit into the stablebond framework, their Gilts stablebond overview covers the specifics of tokenizing UK sovereign debt.

Pistachio x Etherfuse: government bond yields, zero gas fees

Pistachio.fi integrates Etherfuse as one of its vault protocols. This means users can access stablebond yields through the Pistachio mobile app with a few differences from going directly through Etherfuse.

First, gas fees. Pistachio covers all transaction costs. Depositing into an Etherfuse vault, withdrawing, or rebalancing between vaults costs you nothing in gas. The app uses a smart account architecture (ERC-4337) that handles gas sponsorship behind the scenes.

Second, risk assessment. Every vault in Pistachio carries an expert risk grade. For stablebond vaults, this means you can see the underlying bond rating, the protocol risk assessment, and the overall vault grade before committing capital. This is helpful when comparing a 13.06% Brazilian Tesouro position against a 3.23% USTRY position, because the yield alone does not tell you the full risk picture.

Third, portfolio context. Pistachio lets you hold stablebond positions alongside DeFi yield positions in the same wallet. You might allocate a portion to Etherfuse's CETES for 5.78% government-backed yield and another portion to a stablecoin lending vault on Compound for DeFi yield. Both managed from the same app, same wallet, zero gas on either.

The approved vault protocols accessible through Pistachio include Gauntlet (on Morpho), IPOR, YO.xyz, Etherfuse, and Compound. For a broader comparison of how these stack up, the best crypto yield platforms 2026 guide covers the full landscape.

Stablebonds vs stablecoins: the yield gap

The simplest way to understand the difference: holding USDC earns you nothing. Holding a USTRY stablebond earns you 3.23% annually. Both are dollar-denominated. Both are on-chain. The difference is what sits behind the token.

USDC is backed by cash and short-term US Treasuries held by Circle. That backing maintains the $1 peg, but Circle keeps the yield for itself. Tether does the same with USDT. The stablecoin issuer earns billions annually from treasury yields that flow to the company, not to token holders.

Stablebonds flip that model. The yield from the government bond goes to you, the holder. Etherfuse takes a fee for managing the tokenization, custody, and redemption process, but the majority of the bond yield passes through.

This is not a niche insight. It explains a growing trend in DeFi: the shift toward yield-bearing stablecoins and tokenized real-world assets. When you can hold a token that maintains a stable value AND earns government bond yields, the case for holding a zero-yield stablecoin weakens.

There are tradeoffs. Stablecoins are more liquid, more widely accepted as payment, and easier to use as trading collateral. Stablebonds tie your money to a specific government's creditworthiness. A Brazilian Tesouro position paying 13.06% comes with Brazilian sovereign risk. A US Treasury position paying 3.23% is nearly risk-free but pays less than you might earn lending stablecoins on DeFi protocols.

Who is Etherfuse for?

Etherfuse currently serves holders across 32 countries, according to their platform data. The company is backed by the Solana Foundation, White Star Capital, North Island Ventures, and Stellar. They recently partnered with Shinhan Securities to expand tokenized sovereign debt access across Asia.

The product fits a few profiles. International investors who want exposure to emerging market government debt without opening local brokerage accounts. DeFi users who want yield that does not depend on protocol token emissions or liquidity mining incentives. Conservative crypto holders who want government-backed returns instead of pure DeFi exposure.

Etherfuse's broader thesis, laid out in their piece on unlocking global capital, draws from economist Hernando de Soto's work on informal capital markets. Their argument: blockchain can formalize access to government debt instruments in the same way it formalizes other asset classes, removing the geographic restrictions that have historically limited who can invest in which country's bonds.

For readers interested in the Brazilian side specifically, the tokenized Brazilian treasuries guide goes deeper on Tesouro Direto and how tokenization compares to traditional Brazilian brokerage access.

Risks to consider

Stablebonds carry sovereign credit risk. You are holding a claim on a government bond, and government bonds can default. Brazil's BB rating means there is measurable credit risk. US Treasuries at AA+ are near the lowest risk available, but even they are not literally risk-free.

Currency risk applies to non-USD positions. If you buy a CETES stablebond denominated in Mexican pesos and the peso depreciates against your home currency, your returns in dollar terms could be lower than the stated 5.78% APY.

Smart contract risk exists in any on-chain product. Etherfuse's contracts handle the tokenization and rebase logic. While government bonds themselves are safe, the smart contract layer that connects you to them introduces protocol risk.

Liquidity risk is lower than in most DeFi positions because the underlying asset (government bonds) is highly liquid. But redemption times may vary depending on bond maturity cycles and platform processing.

Frequently asked questions

What are Etherfuse stablebonds?

Etherfuse stablebonds are blockchain tokens backed 1:1 by government bonds. Each stablebond represents fractional ownership of a specific country's government debt, and the yield from that bond passes through to the token holder via a weekly rebase mechanism. Six countries are currently supported: Brazil, Mexico, UK, US, South Korea, and the EU.

How much can I earn with stablebonds?

Current yields range from 1.4% APY (EU bonds) to 13.06% APY (Brazilian Tesouro). US Treasury stablebonds pay 3.23%, Mexican CETES pay 5.78%, UK Gilts pay 3.43%, and Korean Treasury Bonds pay 2.25%. Yields adjust weekly based on current bond market rates.

Are stablebonds safe?

Stablebonds carry the credit risk of the underlying government bond. US and EU bonds are among the safest fixed-income instruments available. Brazilian and Mexican bonds carry higher credit risk but pay higher yields to compensate. Smart contract risk also applies, as with any on-chain product.

How do I access Etherfuse stablebonds through Pistachio?

Pistachio.fi integrates Etherfuse as a vault protocol. You can access stablebond vaults through the Pistachio mobile app with zero gas fees and expert risk grades on each position. The app uses a built-in smart account wallet, so there is nothing to connect or configure.

What is the difference between a stablebond and a stablecoin?

A stablecoin like USDC maintains a $1 peg but pays no yield to holders. A stablebond is backed by a government bond that generates yield, which passes through to the holder. Both are on-chain tokens, but stablebonds are designed for earning returns, while stablecoins are designed for price stability and payments.