Celo DeFi Integration
This skill covers integrating DeFi protocols on Celo, including Uniswap for swaps, Aave for lending/borrowing, and other protocols.
When to Use
- - Building swap functionality with Uniswap or Ubeswap
- Integrating lending/borrowing with Aave
- Creating liquidity provision features
- Building DeFi aggregators
DeFi Protocols on Celo
Decentralized Exchanges
| Protocol | Description |
|---|
| Uniswap V3/V4 | Primary DEX with concentrated liquidity |
| Ubeswap |
Celo-native DEX, mobile-optimized |
| Velodrome | Superchain DEX with liquidity mining |
| Carbon DeFi | Orderbook-like automated trading |
Lending & Borrowing
| Protocol | Description |
|---|
| Aave V3 | Decentralized lending (launched March 2025) |
| Credit Collective |
On-chain private credit for RWAs |
| PWN | Fixed-rate lending |
DEX Aggregators
| Protocol | Description |
|---|
| LI.FI | Cross-chain aggregator |
Liquidity & Yield
| Protocol | Description |
|---|
| Steer Protocol | Automated liquidity strategies |
| Merkl |
Liquidity provider rewards |
Uniswap V3 Integration
Contract Addresses - Mainnet (Chain ID: 42220)
| Contract | Address |
|---|
| Factory | 0xAfE208a311B21f13EF87E33A90049fC17A7acDEc |
| SwapRouter02 |
0x5615CDAb10dc425a742d643d949a7F474C01abc4 |
| QuoterV2 | 0x82825d0554fA07f7FC52Ab63c961F330fdEFa8E8 |
| NonfungiblePositionManager | 0x3d79EdAaBC0EaB6F08ED885C05Fc0B014290D95A |
| UniversalRouter | 0x643770E279d5D0733F21d6DC03A8efbABf3255B4 |
| Permit2 | 0x000000000022D473030F116dDEE9F6B43aC78BA3 |
| TickLens | 0x5f115D9113F88e0a0Db1b5033D90D4a9690AcD3D |
| Multicall2 | 0x633987602DE5C4F337e3DbF265303A1080324204 |
Contract Addresses - Alfajores Testnet
| Contract | Address |
|---|
| Factory | 0x229Fd76DA9062C1a10eb4193768E192bdEA99572 |
| SwapRouter02 |
0x8C456F41A3883bA0ba99f810F7A2Da54D9Ea3EF0 |
| QuoterV2 | 0x3c1FCF8D6f3A579E98F4AE75EB0adA6de70f5673 |
| NonfungiblePositionManager | 0x0eC9d3C06Bc0A472A80085244d897bb604548824 |
| UniversalRouter | 0x84904B9E85F76a421223565be7b596d7d9A8b8Ce |
| Permit2 | 0x000000000022D473030F116dDEE9F6B43aC78BA3 |
Simple Swap Example
CODEBLOCK0
Ubeswap Integration
Celo-native DEX with V2 and V3 support.
Contract Addresses - Mainnet
| Contract | Address |
|---|
| V3 Factory | 0x67FEa58D5a5a4162cED847E13c2c81c73bf8aeC4 |
| V3 Universal Router |
0x3C255DED9B25f0BFB4EF1D14234BD2514d7A7A0d |
| V3 NFT Position Manager | 0x897387c7B996485c3AAa85c94272Cd6C506f8c8F |
| V2 Factory | 0x62d5b84bE28a183aBB507E125B384122D2C25fAE |
| V2 Router | 0xE3D8bd6Aed4F159bc8000a9cD47CffDb95F96121 |
| UBE Token | 0x71e26d0E519D14591b9dE9a0fE9513A398101490 |
Aave V3 Integration
Contract Addresses - Mainnet
| Contract | Address |
|---|
| Pool | 0x3E59A31363E2ad014dcbc521c4a0d5757d9f3402 |
| PoolAddressesProvider |
0x9F7Cf9417D5251C59fE94fB9147feEe1aAd9Cea5 |
| PoolConfigurator | 0x7567E3434CC1BEf724AB595e6072367Ef4914691 |
| Oracle | 0x1e693D088ceFD1E95ba4c4a5F7EeA41a1Ec37e8b |
| ACLManager | 0x7a12dCfd73C1B4cddf294da4cFce75FcaBBa314C |
| PoolDataProvider | 0x2e0f8D3B1631296cC7c56538D6Eb6032601E15ED |
| Collector | 0xC959439207dA5341B74aDcdAC59016aa9Be7E9E7 |
Supported Assets
| Asset | Address | aToken |
|---|
| USDC | 0xcebA9300f2b948710d2653dD7B07f33A8B32118C | 0xFF8309b9e99bfd2D4021bc71a362aBD93dBd4785 |
| USDT |
0x48065fbbe25f71c9282ddf5e1cd6d6a887483d5e | - |
| USDm | 0x765de816845861e75a25fca122bb6898b8b1282a | - |
| EURm | 0xd8763cba276a3738e6de85b4b3bf5fded6d6ca73 | - |
| CELO | 0x471EcE3750Da237f93B8E339c536989b8978a438 | - |
| WETH | 0xD221812de1BD094f35587EE8E174B07B6167D9Af | - |
Supply Assets
CODEBLOCK1
Borrow Assets
CODEBLOCK2
Token Approval
Before interacting with DeFi protocols, approve token spending:
CODEBLOCK3
Fee Tiers (Uniswap V3)
| Fee | Use Case |
|---|
| 100 (0.01%) | Stable pairs (USDm/USDC) |
| 500 (0.05%) |
Stable pairs |
| 3000 (0.3%) | Most pairs |
| 10000 (1%) | Exotic pairs |
Dependencies
CODEBLOCK4
For Aave integration:
CODEBLOCK5
Additional Resources
Celo DeFi 集成
该技能涵盖在Celo上集成DeFi协议，包括用于交换的Uniswap、用于借贷的Aave以及其他协议。
使用场景
- - 使用Uniswap或Ubeswap构建交换功能
- 集成Aave进行借贷
- 创建流动性提供功能
- 构建DeFi聚合器
Celo上的DeFi协议
去中心化交易所
| 协议 | 描述 |
|---|
| Uniswap V3/V4 | 主要DEX，支持集中流动性 |
| Ubeswap |
Celo原生DEX，针对移动端优化 |
| Velodrome | 超级链DEX，支持流动性挖矿 |
| Carbon DeFi | 类订单簿自动交易 |
借贷协议
| 协议 | 描述 |
|---|
| Aave V3 | 去中心化借贷（2025年3月上线） |
| Credit Collective |
真实世界资产的链上私人信贷 |
| PWN | 固定利率借贷 |
DEX聚合器
流动性与收益
| 协议 | 描述 |
|---|
| Steer Protocol | 自动化流动性策略 |
| Merkl |
流动性提供者奖励 |
Uniswap V3 集成
合约地址 - 主网（链ID：42220）
| 合约 | 地址 |
|---|
| Factory | 0xAfE208a311B21f13EF87E33A90049fC17A7acDEc |
| SwapRouter02 |
0x5615CDAb10dc425a742d643d949a7F474C01abc4 |
| QuoterV2 | 0x82825d0554fA07f7FC52Ab63c961F330fdEFa8E8 |
| NonfungiblePositionManager | 0x3d79EdAaBC0EaB6F08ED885C05Fc0B014290D95A |
| UniversalRouter | 0x643770E279d5D0733F21d6DC03A8efbABf3255B4 |
| Permit2 | 0x000000000022D473030F116dDEE9F6B43aC78BA3 |
| TickLens | 0x5f115D9113F88e0a0Db1b5033D90D4a9690AcD3D |
| Multicall2 | 0x633987602DE5C4F337e3DbF265303A1080324204 |
合约地址 - Alfajores测试网
| 合约 | 地址 |
|---|
| Factory | 0x229Fd76DA9062C1a10eb4193768E192bdEA99572 |
| SwapRouter02 |
0x8C456F41A3883bA0ba99f810F7A2Da54D9Ea3EF0 |
| QuoterV2 | 0x3c1FCF8D6f3A579E98F4AE75EB0adA6de70f5673 |
| NonfungiblePositionManager | 0x0eC9d3C06Bc0A472A80085244d897bb604548824 |
| UniversalRouter | 0x84904B9E85F76a421223565be7b596d7d9A8b8Ce |
| Permit2 | 0x000000000022D473030F116dDEE9F6B43aC78BA3 |
简单交换示例
typescript
import { createWalletClient, custom, encodeFunctionData } from viem;
import { celo } from viem/chains;
const SWAP_ROUTER = 0x5615CDAb10dc425a742d643d949a7F474C01abc4;
const SWAPROUTERABI = [
{
name: exactInputSingle,
type: function,
stateMutability: payable,
inputs: [
{
name: params,
type: tuple,
components: [
{ name: tokenIn, type: address },
{ name: tokenOut, type: address },
{ name: fee, type: uint24 },
{ name: recipient, type: address },
{ name: amountIn, type: uint256 },
{ name: amountOutMinimum, type: uint256 },
{ name: sqrtPriceLimitX96, type: uint160 },
],
},
],
outputs: [{ type: uint256 }],
},
] as const;
async function swapExactInput(
tokenIn: string,
tokenOut: string,
amountIn: bigint,
amountOutMin: bigint,
fee: number = 3000
): Promise {
const walletClient = createWalletClient({
chain: celo,
transport: custom(window.ethereum),
});
const [address] = await walletClient.getAddresses();
const hash = await walletClient.sendTransaction({
account: address,
to: SWAP_ROUTER,
data: encodeFunctionData({
abi: SWAPROUTERABI,
functionName: exactInputSingle,
args: [
{
tokenIn: tokenIn as 0x${string},
tokenOut: tokenOut as 0x${string},
fee,
recipient: address,
amountIn,
amountOutMinimum: amountOutMin,
sqrtPriceLimitX96: 0n,
},
],
}),
});
return hash;
}
Ubeswap 集成
Celo原生DEX，支持V2和V3。
合约地址 - 主网
| 合约 | 地址 |
|---|
| V3 Factory | 0x67FEa58D5a5a4162cED847E13c2c81c73bf8aeC4 |
| V3 Universal Router |
0x3C255DED9B25f0BFB4EF1D14234BD2514d7A7A0d |
| V3 NFT Position Manager | 0x897387c7B996485c3AAa85c94272Cd6C506f8c8F |
| V2 Factory | 0x62d5b84bE28a183aBB507E125B384122D2C25fAE |
| V2 Router | 0xE3D8bd6Aed4F159bc8000a9cD47CffDb95F96121 |
| UBE Token | 0x71e26d0E519D14591b9dE9a0fE9513A398101490 |
Aave V3 集成
合约地址 - 主网
| 合约 | 地址 |
|---|
| Pool | 0x3E59A31363E2ad014dcbc521c4a0d5757d9f3402 |
| PoolAddressesProvider |
0x9F7Cf9417D5251C59fE94fB9147feEe1aAd9Cea5 |
| PoolConfigurator | 0x7567E3434CC1BEf724AB595e6072367Ef4914691 |
| Oracle | 0x1e693D088ceFD1E95ba4c4a5F7EeA41a1Ec37e8b |
| ACLManager | 0x7a12dCfd73C1B4cddf294da4cFce75FcaBBa314C |
| PoolDataProvider | 0x2e0f8D3B1631296cC7c56538D6Eb6032601E15ED |
| Collector | 0xC959439207dA5341B74aDcdAC59016aa9Be7E9E7 |
支持的资产
| 资产 | 地址 | aToken |
|---|
| USDC | 0xcebA9300f2b948710d2653dD7B07f33A8B32118C | 0xFF8309b9e99bfd2D4021bc71a362aBD93dBd4785 |
| USDT |
0x48065fbbe25f71c9282ddf5e1cd6d6a887483d5e | - |
| USDm | 0x765de816845861e75a25fca122bb6898b8b1282a | - |
| EURm | 0xd8763cba276a3738e6de85b4b3bf5fded6d6ca73 | - |
| CELO |
