Account architecture
How Checking maps to your Solana USDC wallet, how card balances isolate spend, and how Treasury deploys after you confirm a deposit.
Account architecture
Echlon's account structure is designed around true ownership and isolation. This page explains how your Checking, Cards, and Treasury balances work under the hood — for users who want a deeper look at the technology behind their balance.
Overview
| Balance | What you see | What it is underneath |
|---|---|---|
| Checking | Your USDC balance | A digital wallet on Solana that you own and holds your Checking balance |
| Cards | Card spending balance | A separate dedicated balance for your cards |
| Treasury | Yield-earning balance | Funds deployed across vetted yield-generating protocols |
Checking — your non-custodial digital wallet
Your Checking balance lives in a non-custodial digital wallet on Solana that belongs entirely to you. Echlon never has access to your funds.
- The wallet is created during registration and secured with your private key — a unique credential that only you control.
- Your key is encrypted and never stored in a readable form, anywhere.
- The USDC held in this wallet are your property — not a balance on Echlon's books.
When you "receive a payment," your sender's local currency is converted to USDC and deposited into this wallet. When you "send a payment," USDC leaves this wallet, is converted back to local currency, and delivered to the recipient's bank. See On & off ramps.
Card balance
Echlon card is backed by its own dedicated balance, isolated from your Checking balance.
- When you "top up" from Checking, you are moving funds from your Checking balance to the card's dedicated balance.
- When you make a purchase, funds are debited from the card's balance in real time.
- A card can only spend what you have allocated to it — this limit is enforced at the structural level, not just by a software setting.
Treasury — managed yield strategies
When you deposit into Treasury, your funds are allocated to configured yield strategies that seek to generate returns and carry smart-contract, protocol, liquidity, stablecoin, and market risks.
Where your funds go
Echlon allocates Treasury deposits across multiple strategies and providers. Current allocations may include:
- Kamino Finance — a Solana-based lending platform used for USDC lending strategies. In some cases, strategies on Kamino may be managed by third-party risk managers (for example, Elemental) that dynamically allocate liquidity across lending markets.
- Ondo Finance — provides access to US Treasury bills and money market funds through regulated, on-chain products. One of the more conservative yield sources available
- Lending protocols — Direct lending on established Solana protocols (MarginFi, Drift, and others).
Allocations change based on risk assessment, yield, and protocol health. You do not need to manage any of this — Echlon aggregates everything into a single Treasury balance you can see in your dashboard.
Multi-network and aggregation
Some yield strategies operate on networks other than Solana (such as Ethereum or Arbitrum). When Echlon uses strategies like Ondo that run on other networks:
- Your funds are moved to the target network via audited, secure transfer infrastructure.
- Deposits are placed into the strategy's contracts on that network.
- Yield accrues and is reflected in your Echlon dashboard as a single, combined number.
- On withdrawal, funds are returned and converted back to your Checking balance.
You see one Treasury balance. Behind the scenes, it may be spread across multiple strategies and networks — all managed and monitored by Echlon.
Risk isolation
- Strategy allocation — Allocations are configured and may change as strategies are reviewed; concentration can vary.
- Monitoring — Protocol health, fund levels, and other available signals may inform allocation and risk-management decisions.
- Redemption and reallocation — Redemption or reallocation may be attempted when conditions warrant, but timing is not guaranteed and losses or delays remain possible.
See DeFi & yield for more on risk factors and safeguards.
How transfers work behind the scenes
| Transfer | What happens |
|---|---|
| Checking → Cards | Funds move from your Checking balance to the card's dedicated balance |
| Cards → Checking | Funds move from the card's balance back to your Checking balance |
| Checking → Treasury | Funds are deposited into managed yield strategies |
| Treasury → Checking | Funds are redeemed from yield strategies and returned to your Checking balance |
All movements are recorded on the Solana blockchain. If you want to verify any transaction independently, you can view the underlying on-chain record through a blockchain explorer — a public tool that lets anyone look up blockchain transactions.
Why this architecture?
- True ownership — Your Checking balance is in your wallet, not Echlon's — see Wallets & keys for more details.
- Isolation — Card funds, spending, and yield are compartmentalized. A problem in one area can't drain another.
- Transparency — Every movement is on-chain and auditable.
- Composability — Because everything is on-chain, new products and features can be added on top of the same wallet infrastructure without rebuilding from scratch.
Still need help?
Have a question that isn't answered here? See our support channels, message us on WhatsApp at +1 (787) 468-5842, or open a support ticket — we typically respond within 24 hours.