base-flash-arb-mcp
MCP server for detecting flash loan arbitrage opportunities across DEXes on Base mainnet.
Tools
| Tool | Description |
|---|---|
detect_arb_opportunity | Compare token prices across Uniswap V2, V3, and Aerodrome. Find profitable arb routes. |
get_pool_reserves | Get reserves/liquidity for a token across all known DEX pools on Base. |
estimate_flash_profit | Estimate flash loan profit between two pools after gas costs. |
scan_top_tokens | Scan top traded tokens on Base for arb opportunities via DexScreener. |
get_price_across_dexes | Get current price of a token on all available DEXes. |
check_sandwich_risk | Analyze recent trades for sandwich attack patterns (bot activity). |
get_mempool_pending | Check pending transactions for front-run detection. |
Install
npx -y base-flash-arb-mcp
Configuration
Set RPC_URL environment variable to override the default Base RPC (https://mainnet.base.org).
Claude Desktop
{
"mcpServers": {
"base-flash-arb": {
"command": "npx",
"args": ["-y", "base-flash-arb-mcp"],
"env": {
"RPC_URL": "https://mainnet.base.org"
}
}
}
}
DEXes Covered
- Uniswap V2 (Factory:
0x8909Dc15e40173Ff4699343b6eB8132c65e18eC6) - Uniswap V3 (Fee tiers: 0.05%, 0.3%, 1%)
- Aerodrome (Volatile + Stable pools)
How It Works
All tools are read-only -- no private key needed. The server queries on-chain pool reserves, uses DEX quoters for accurate pricing, and compares across exchanges to find price discrepancies that could be exploited via flash loans.
Flash profit estimation accounts for:
- Aave flash loan fee (0.09%)
- Base gas costs (dynamically estimated)
- Slippage warning
Sandwich detection uses heuristic analysis of Swap events to identify same-block multi-transaction patterns from single addresses.
Related MCP Servers
| Package | Tools | What it does |
|---|---|---|
obsd-launchpad-mcp | 14 | Deploy tokens, trade, earn OBSD |
base-security-scanner-mcp | 8 | Scan contracts for vulnerabilities |
base-price-oracle-mcp | 7 | On-chain price feeds from DEX pools |
base-multi-wallet-mcp | 8 | Coordinated multi-wallet trading |
base-gasless-deploy-mcp | 5 | Gasless ERC-20 token deployment |
base-flash-arb-mcp | 7 | Detect arbitrage opportunities |
base-token-sniper-mcp | 5 | Discover & trade new launches |
base-wallet-toolkit-mcp | 7 | Wallet balances, gas, tokens |
base-contract-reader-mcp | 6 | Read any smart contract (free) |
create-mcp-server-cli | - | Scaffold a new MCP server |
License
MIT