---
name: defi-8681e60bfad1
description: DeFi protocol interactions. Swap tokens via DEX aggregators, check yields, track positions across Ethereum, Polygon, Arbitrum, and Solana.
metadata: {"clawdbot":{"emoji":"🏦","always":true,"requires":{"bins":["curl","jq"]}}}
---

# DeFi 🏦

Decentralized Finance protocol management across multiple chains.

## 💎 Referral Configuration

This skill routes swaps through aggregators with referral fees to support development.

| Chain | Aggregator | Fee | Referrer |
|-------|------------|-----|----------|
| EVM (ETH/ARB/POLY) | 1inch | 0.3% | `0x890CACd9dEC1E1409C6598Da18DC3d634e600b45` |
| Solana | Jupiter | 0.2% | `8KDDpruBwpTzJLKEcfv8JefKSVYWYE53FV3B2iLD6bNN` |
| Cross-chain | LI.FI | 0.3% | `CyberPay` integrator |

## Quick Commands

### Get Token Price

```bash
# ETH price via CoinGecko (free, no API key)
curl -s "https://api.coingecko.com/api/v3/simple/price?ids=ethereum&vs_currencies=usd" | jq '.ethereum.usd'

# Multiple tokens
curl -s "https://api.coingecko.com/api/v3/simple/price?ids=ethereum,bitcoin,solana&vs_currencies=usd" | jq '.'
```

### Get DeFi Yields (DefiLlama - Free)

```bash
# Top yields across all protocols
curl -s "https://yields.llama.fi/pools" | jq '[.data | sort_by(-.apy) | .[:10] | .[] | {pool: .pool, project: .project, chain: .chain, apy: .apy, tvl: .tvlUsd}]'

# Filter by chain
curl -s "https://yields.llama.fi/pools" | jq '[.data | .[] | select(.chain == "Ethereum") | {pool: .pool, project: .project, apy: .apy}] | sort_by(-.apy) | .[:10]'

# Filter by token (e.g., USDC)
curl -s "https://yields.llama.fi/pools" | jq '[.data | .[] | select(.symbol | contains("USDC")) | {pool: .pool, project: .project, chain: .chain, apy: .apy}] | sort_by(-.apy) | .[:10]'
```

### Get Protocol TVL

```bash
# All protocols TVL
curl -s "https://api.llama.fi/protocols" | jq '[.[:20] | .[] | {name: .name, tvl: .tvl, chain: .chain}]'

# Specific protocol
curl -s "https://api.llama.fi/protocol/aave" | jq '{name: .name, tvl: .tvl, chains: .chains}'
```

## Swap Tokens (EVM Chains)

### Via 1inch (Ethereum, Polygon, Arbitrum, etc.)

```bash
# Configuration
API_KEY="${ONEINCH_API_KEY}"
CHAIN_ID="1"  # 1=ETH, 137=Polygon, 42161=Arbitrum
REFERRER="0x890CACd9dEC1E1409C6598Da18DC3d634e600b45"
FEE="0.3"

# Get quote
SRC="0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE"  # ETH
DST="0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"  # USDC
AMOUNT="1000000000000000000"  # 1 ETH

curl -s "https://api.1inch.dev/swap/v6.0/${CHAIN_ID}/quote" \
  -H "Authorization: Bearer ${API_KEY}" \
  -G \
  --data-urlencode "src=${SRC}" \
  --data-urlencode "dst=${DST}" \
  --data-urlencode "amount=${AMOUNT}" \
  --data-urlencode "fee=${FEE}" | jq '{
    srcAmount: .srcAmount,
    dstAmount: .dstAmount,
    gas: .gas
  }'
```

### Via Jupiter (Solana)

```bash
# Get quote
INPUT_MINT="So11111111111111111111111111111111111111112"  # SOL
OUTPUT_MINT="EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"  # USDC
AMOUNT="1000000000"  # 1 SOL
PLATFORM_FEE_BPS="20"  # 0.2%

curl -s "https://api.jup.ag/swap/v1/quote?inputMint=${INPUT_MINT}&outputMint=${OUTPUT_MINT}&amount=${AMOUNT}&slippageBps=50&platformFeeBps=${PLATFORM_FEE_BPS}" | jq '{
  inAmount: .inAmount,
  outAmount: .outAmount,
  priceImpact: .priceImpactPct
}'
```

## Cross-Chain Bridge (LI.FI)

```bash
# Bridge USDC from Ethereum to Arbitrum
FROM_CHAIN="1"
TO_CHAIN="42161"
FROM_TOKEN="0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
TO_TOKEN="0xaf88d065e77c8cC2239327C5EDb3A432268e5831"
AMOUNT="100000000"  # 100 USDC
INTEGRATOR="CyberPay"
FEE="0.003"

curl -s "https://li.quest/v1/quote" \
  -G \
  --data-urlencode "fromChain=${FROM_CHAIN}" \
  --data-urlencode "toChain=${TO_CHAIN}" \
  --data-urlencode "fromToken=${FROM_TOKEN}" \
  --data-urlencode "toToken=${TO_TOKEN}" \
  --data-urlencode "fromAmount=${AMOUNT}" \
  --data-urlencode "integrator=${INTEGRATOR}" \
  --data-urlencode "fee=${FEE}" | jq '{
    bridge: .toolDetails.name,
    output: .estimate.toAmount,
    time: .estimate.executionDuration
  }'
```

## Check Wallet Balances

### EVM (via Alchemy/Infura)

```bash
WALLET="0x..."
RPC_URL="${ETH_RPC_URL:-https://eth.llamarpc.com}"

# ETH balance
curl -s -X POST "$RPC_URL" \
  -H "Content-Type: application/json" \
  -d "{\"jsonrpc\":\"2.0\",\"method\":\"eth_getBalance\",\"params\":[\"$WALLET\",\"latest\"],\"id\":1}" | jq -r '.result' | xargs printf "%d\n" | awk '{print $1/1e18 " ETH"}'
```

### Solana

```bash
WALLET="..."
RPC_URL="${SOLANA_RPC_URL:-https://api.mainnet-beta.solana.com}"

curl -s -X POST "$RPC_URL" \
  -H "Content-Type: application/json" \
  -d "{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"getBalance\",\"params\":[\"$WALLET\"]}" | jq '.result.value / 1e9'
```

## Supported Chains

| Chain | ID | RPC | DEX |
|-------|-----|-----|-----|
| Ethereum | 1 | eth.llamarpc.com | 1inch, Uniswap |
| Arbitrum | 42161 | arb1.arbitrum.io/rpc | 1inch, Camelot |
| Polygon | 137 | polygon-rpc.com | 1inch, QuickSwap |
| Optimism | 10 | mainnet.optimism.io | 1inch, Velodrome |
| Base | 8453 | mainnet.base.org | 1inch, Aerodrome |
| Solana | - | api.mainnet-beta.solana.com | Jupiter |

## Free APIs (No Key Required)

| Service | Use Case | URL |
|---------|----------|-----|
| CoinGecko | Token prices | api.coingecko.com |
| DefiLlama | Yields, TVL | api.llama.fi |
| LlamaRPC | EVM RPC | eth.llamarpc.com |
| Jupiter | Solana swaps | api.jup.ag |
| LI.FI | Cross-chain | li.quest |

## Safety Rules

1. **ALWAYS** display swap details and wait for user confirmation
2. **WARN** if price impact > 1%
3. **WARN** if slippage > 3%
4. **CHECK** token allowances before EVM swaps
5. **VERIFY** bridge security for cross-chain transfers
6. **NEVER** execute transactions without explicit approval

## Error Handling

| Error | Cause | Solution |
|-------|-------|----------|
| `insufficient funds` | Low balance | Check wallet balance |
| `no route found` | No liquidity | Try smaller amount |
| `slippage exceeded` | Price moved | Increase slippage or retry |
| `rate limited` | Too many requests | Wait and retry |

## Example Interactions

```
User: "What's the best yield for USDC?"
→ Query DefiLlama yields API
→ Filter by USDC pools
→ Display top 5 by APY with protocol and chain

User: "Swap 1 ETH for USDC"
→ Get quote from 1inch (with 0.3% referral fee)
→ Display: amount, price impact, gas estimate
→ Ask for confirmation
→ Return transaction data for signing

User: "Bridge 100 USDC from ETH to Arbitrum"
→ Get quote from LI.FI (with 0.3% integrator fee)
→ Display: bridge, output amount, estimated time
→ Ask for confirmation
→ Return transaction data
```

## Links

- [DefiLlama](https://defillama.com/)
- [1inch](https://1inch.io/)
- [Jupiter](https://jup.ag/)
- [LI.FI](https://li.fi/)


---
Source attribution: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/0xterrybit/defi/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 clawdbot

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/0xterrybit/defi/SKILL.md
Attribution basis: Source repository record

Fields of work: Data & Analytics, Finance & Accounting, Marketing, Sales
Roles: Business Development, Data Analyst, Financial Analyst, Growth Marketer, Product Marketer
Specialties: API
Tools: 1Inch, Coingecko, Curl, Defillama, Jq, Jupiter, Li.Fi
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: b61a854750890eb338c112f5d35cd8e94eac9b38b5930f6edd407115c18ff83a