---
name: mev
description: "MEV protection against sandwich attacks and front-running"
emoji: "🛡️"
---

# MEV Protection - Complete API Reference

Protect trades from MEV (Maximal Extractable Value) attacks including sandwich attacks and front-running.

---

## Chat Commands

### Protection Settings

```
/mev                                Show current protection
/mev status                         Protection status
/mev enable                         Enable protection
/mev disable                        Disable protection
```

### Configure Protection

```
/mev level aggressive               Maximum protection
/mev level standard                 Balanced protection
/mev level minimal                  Basic protection
/mev provider flashbots             Use Flashbots
/mev provider mev-blocker           Use MEV Blocker
```

### Check Transaction

```
/mev check <tx-hash>                Check if tx was attacked
/mev simulate <order>               Simulate MEV risk
```

---

## TypeScript API Reference

### Create MEV Protection

```typescript
import { createMEVProtection } from 'clodds/mev';

const mev = createMEVProtection({
  // Default level
  level: 'standard',

  // Providers
  providers: {
    ethereum: 'flashbots',    // 'flashbots' | 'mev-blocker'
    solana: 'jito',           // 'jito' | 'standard'
  },

  // Settings
  maxPriorityFee: 5,  // gwei
  bundleTimeout: 60,  // seconds
});
```

### Execute Protected Trade

```typescript
// EVM trade with protection
const result = await mev.executeProtected({
  chain: 'ethereum',
  type: 'swap',
  tokenIn: 'USDC',
  tokenOut: 'ETH',
  amountIn: 10000,
  minAmountOut: calculateMinOut(10000, 0.5),  // 0.5% slippage
});

console.log(`Tx hash: ${result.txHash}`);
console.log(`Protected: ${result.protected}`);
console.log(`Bundle ID: ${result.bundleId}`);
console.log(`Savings: $${result.estimatedSavings}`);
```

### Flashbots (Ethereum)

```typescript
// Submit via Flashbots Protect
const result = await mev.flashbots({
  to: routerAddress,
  data: swapCalldata,
  value: 0,
  maxFeePerGas: parseGwei('50'),
  maxPriorityFeePerGas: parseGwei('2'),
});

console.log(`Submitted to Flashbots`);
console.log(`Bundle hash: ${result.bundleHash}`);

// Wait for inclusion
const status = await mev.waitForInclusion(result.bundleHash);
console.log(`Included in block: ${status.blockNumber}`);
```

### MEV Blocker (Ethereum)

```typescript
// Use MEV Blocker by CoW Protocol
const result = await mev.mevBlocker({
  to: routerAddress,
  data: swapCalldata,
  value: 0,
});

// MEV Blocker automatically:
// - Protects from sandwich attacks
// - Backruns profitable MEV to you
// - Returns any captured MEV
console.log(`MEV captured: $${result.mevCaptured}`);
```

### Jito (Solana)

```typescript
// Submit via Jito bundles
const result = await mev.jito({
  instructions: swapInstructions,
  tip: 10000,  // lamports tip to validators
});

console.log(`Bundle ID: ${result.bundleId}`);
console.log(`Status: ${result.status}`);
```

### Check Transaction

```typescript
// Check if a past transaction was attacked
const analysis = await mev.analyzeTransaction(txHash);

console.log(`Was attacked: ${analysis.wasAttacked}`);
if (analysis.wasAttacked) {
  console.log(`Attack type: ${analysis.attackType}`);
  console.log(`Attacker: ${analysis.attacker}`);
  console.log(`Loss: $${analysis.estimatedLoss}`);
  console.log(`Frontrun tx: ${analysis.frontrunTx}`);
  console.log(`Backrun tx: ${analysis.backrunTx}`);
}
```

### Simulate MEV Risk

```typescript
// Before trading, check MEV risk
const risk = await mev.simulateRisk({
  chain: 'ethereum',
  type: 'swap',
  tokenIn: 'USDC',
  tokenOut: 'PEPE',
  amountIn: 50000,
});

console.log(`MEV risk: ${risk.level}`);  // 'low' | 'medium' | 'high'
console.log(`Estimated max loss: $${risk.maxLoss}`);
console.log(`Recommendation: ${risk.recommendation}`);

if (risk.level === 'high') {
  console.log('⚠️ High MEV risk - use protection!');
}
```

### Protection Levels

```typescript
// Aggressive - maximum protection, slower
mev.setLevel('aggressive', {
  usePrivateMempool: true,
  bundleOnly: true,
  maxSlippage: 0.1,
  waitForProtection: true,
});

// Standard - balanced protection
mev.setLevel('standard', {
  usePrivateMempool: true,
  bundleOnly: false,
  maxSlippage: 0.5,
});

// Minimal - basic protection
mev.setLevel('minimal', {
  usePrivateMempool: false,
  bundleOnly: false,
  maxSlippage: 1.0,
});
```

---

## MEV Attack Types

| Attack | Description | Protection |
|--------|-------------|------------|
| **Sandwich** | Front + backrun your trade | Private mempool |
| **Front-running** | Copy your trade first | Private mempool |
| **Back-running** | Profit after your trade | Jito/Flashbots |
| **JIT Liquidity** | Manipulate pool | Slippage limits |

---

## Protection Providers

| Chain | Provider | Method |
|-------|----------|--------|
| **Ethereum** | Flashbots Protect | Private relay |
| **Ethereum** | MEV Blocker | CoW Protocol |
| **Solana** | Jito | Bundle submission |
| **L2s** | Native | Sequencer protection |

---

## When to Use Protection

| Trade Size | Token | Recommendation |
|------------|-------|----------------|
| < $1,000 | Major | Minimal |
| $1,000 - $10,000 | Major | Standard |
| > $10,000 | Major | Aggressive |
| Any size | Meme/Low liquidity | Aggressive |

---

## Best Practices

1. **Always protect large trades** — MEV bots watch everything
2. **Use tight slippage** — Limits attack profitability
3. **Check before trading** — Simulate MEV risk
4. **Review transactions** — Learn from past attacks
5. **L2s are safer** — Sequencer provides natural protection


---
Source attribution: alsk1992
Original project: https://github.com/alsk1992/CloddsBot/blob/c930628c47a4a745f497e29035a3b64622f97cc7/src/skills/bundled/mev/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Dave AI.

## Upstream license notice

MIT License

Copyright (c) 2026 alsk1992

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.



# Dave AI resource metadata

Creator / publisher: alsk1992
Original project: https://github.com/alsk1992/CloddsBot/blob/c930628c47a4a745f497e29035a3b64622f97cc7/src/skills/bundled/mev/SKILL.md
Attribution basis: Source repository record

Fields of work: Data & Analytics, Development & Engineering, Marketing, Sales
Roles: Backend Developer, Data Scientist, Growth Marketer, Product Marketer, Sales Engineer
Specialties: API, Backend
Tools: Flashbots, Jito
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 7602195375cdd3ce215cb3d2a0c4229e3db5c58c0b521930925ef7affd0d0a5a