The savings super-app

Banking with stablecoins was never so easy. 
Earn, Spend and trade with a solid foundation.

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Smart Yield
Maximum Earnings

Earn institutional-grade yield on your USDC
Strategies rebalance automatically, so your funds work harder. No staking. No micromanaging. Just passive income.

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Bank-grade security

Your funds are protected by SAFE accounts, biometric login, and real-time monitoring via Checkpoint.
No seed phrases. No backdoors. Full control.

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Solid works wherever you do

Manage your yield, and track your P&L on any device mobile & desktop without friction or annoying steps

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Fast Gasless Frictionless

No gas fees. No signatures. No bridges.
Smart accounts and deep integration with Fuse power a zero-friction DeFi experience.

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Your everyday crypto app

We abstract away all the complexities of DeFi so you can focus on Saving Earning & Spending

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Start earning from your first $

The fastest way to get Solid yields and for experts, more earning opportunities with less friction.

Solid works wherever you do

Solid is built to run seamlessly across mobile & desktop. Track your yield, deposits, and P&L from anywhere

Spend your yield
Coming soon

Instantly spend your yield wherever Visa is accepted & get up to 2% Cashback on every purchase.

Swap tokens across networks

Bridge and exchange assets easily across EVM and Rings-compatible chains with no hidden costs.

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Solid is a yield-bearing account that works in the background—earning on your money while you live your life. No stress, no spreadsheets, no jargon.

Just open your account, deposit once, and let your balance grow.

Use your yield bearing dollars to buy crypto, stock or spend your yield in any store in the world

Safe. Transparent. Designed for real people, not crypto insiders.

Frequently asked questions

What is SOLID?

SOLID is a full-stack DeFi protocol that lets users earn, spend, and save directly from their self-custodial wallet. At its core is SoUSD — a yield-bearing, non-custodial stablecoin designed for a seamless, cross-chain experience.

How does SOLID work?

When you deposit USDC, you mint SoUSD — a token that represents shares in a vault optimized for yield. Your funds are allocated into whitelisted, audited DeFi strategies. You earn automatically as the vault grows in value.
No staking. No lockups. Yield compounds passively.

Note: While we abstract gas and signatures for simplicity, you still sign transactions and pay gas when minting or redeeming.

What makes SOLID different?

SOLID offers DeFi without the headaches.
You get:

  • Real yield from curated strategies
  • Abstracted bridging & gas management
  • Full control through self-custody
  • A sleek interface and upcoming payment card

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All in one protocol, designed to just work — for everyone.

What is SoUSD?

SoUSD is a yield-bearing stablecoin. Unlike typical 1:1 pegged stablecoins, SoUSD represents your share in a growing vault.
Its value increases over time as interest accrues — no need to stake or manage positions.

SoUSD is gasless, cross-chain, and composable — ready for use in payments, swaps, lending, and more.

Why didn’t I receive 1 SoUSD per 1 USDC?

SoUSD uses a dynamic exchange rate, based on the vault's current performance:

exchange rate = total assets / total shares

If the vault has earned yield, each SoUSD is worth more than $1, so you’ll receive fewer SoUSD tokens — but your USD-equivalent value is preserved and grows over time.

Where does the yield come from?

Yield comes from BoringVaults — a set of curated DeFi strategies across chains. Capital is deployed into secure, audited protocols with strong performance histories (e.g., lending markets, staking).

Strategies are selected based on risk, uptime, and on-chain performance, ensuring your SoUSD earns reliable, risk-adjusted yield — without you lifting a finger.