Base Flash Arbitrage MCP Server

This MCP server enables AI agents to detect flash-loan arbitrage opportunities across DEXes on Base mainnet. It supports scanning token prices and liquidity across multiple venues and estimating profitability, including gas costs. The server focuses on cross-DEX comparisons using Uniswap V2, Uniswap V3, and Aerodrome.

🛠️ Key Features

Detects flash loan arbitrage opportunities across Base DEXes
Compares token prices across Uniswap V2, Uniswap V3, and Aerodrome
Retrieves token pool reserves/liquidity across known Base pools
Estimates flash loan profit between two pools after gas costs
Scans top traded Base tokens via DexScreener for arb opportunities

🚀 Use Cases

Finding profitable arb routes between DEX pools on Base
Evaluating flash-loan profitability for candidate token pairs
Monitoring high-liquidity or high-volume tokens for arbitrage chances

⚡ Developer Benefits

Tooling for price comparison (get_price_across_dexes)
Liquidity discovery across pools (get_pool_reserves)
Profit estimation with gas consideration (estimate_flash_profit)
Automated scanning workflow (scan_top_tokens)

⚠️ Limitations

Described tools target Base mainnet DEXes and the listed DEX set (Uniswap V2/V3, Aerodrome).

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.

Configuration

Set RPC_URL environment variable to override the default Base RPC (https://mainnet.base.org).

Claude Desktop

json

{
  "mcpServers": {
    "base-flash-arb": {
      "command": "npx",
      "args": ["-y", "base-flash-arb-mcp"],
      "env": {
        "RPC_URL": "https://mainnet.base.org"
      }
    }
  }
}

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.

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io.github.lordbasilaiassistant-sudo/base-flash-arb-mcp

Base Flash Arbitrage MCP Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

Topics

base-flash-arb-mcp

Tools

Install

Configuration

Claude Desktop

DEXes Covered

How It Works

License

Install

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