What is YeldX?
YeldX is a DeFi yield aggregator that finds the best stablecoin yields across every major chain — and lets you deposit in one click using any token you already hold.
Built on top of LI.FI Earn, YeldX gives you access to hundreds of vetted vaults across Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, and Avalanche.
Why YeldX?
Most yield platforms show you a single chain, require native tokens, or bury you in complexity. YeldX is different:
| Problem | YeldX solution |
|---|---|
| "I only have ETH but want USDC yield" | Swap + deposit in one transaction via LI.FI Composer |
| "I don't know which vault is safe" | 5-component weighted risk score with clear Low / Medium / High labels |
| "APY numbers are always fake" | 30-day average APY shown everywhere — not the manipulated live spike |
| "I lose track of earnings" | Portfolio tracker with estimated earned income and deposit history |
| "I want to earn by sharing" | Points & referral program — earn 1 pt per $1 swapped + 10% from invitees |
Architecture overview
graph LR
User([User]) -->|connects wallet| YeldX[YeldX App]
YeldX -->|fetches vaults| LIFI[LI.FI Earn API]
YeldX -->|deposit / withdraw| Composer[LI.FI Composer]
YeldX -->|portfolio positions| Portfolio[LI.FI Portfolio API]
Composer -->|cross-chain swap| Bridge[LI.FI Bridge/DEX]
Bridge --> Vault[DeFi Vault]
YeldX -->|points & referrals| DB[(Postgres)]
Supported networks
| Network | Chain ID |
|---|---|
| Ethereum | 1 |
| Base | 8453 |
| Arbitrum One | 42161 |
| Optimism | 10 |
| Polygon | 137 |
| BNB Chain | 56 |
| Avalanche | 43114 |
Key numbers
- 100+ vaults indexed across all chains
- 7 chains supported
- $500k+ TVL minimum per vault (filters out noise)
- 5 weighted risk components in every score
- 30-day APY average shown (never the live spike)
Next steps
- Getting Started — connect your wallet and make your first deposit
- Vaults — how vault discovery and sorting works
- Risk Scoring — what the risk labels mean
- Points & Referral — earn points and invite friends