README - uniswap-price-mcp by kukapay

Uniswap V3 Price MCP Server

An MCP server that delivers real-time token prices from Uniswap V3 across multiple chains — optimized for AI agents and DeFi automation.

Features

Supported Chains: Ethereum Mainnet (1), Polygon (137), Arbitrum (42161), Optimism (10).
Token Price Fetching: Queries Uniswap V3 pools for token prices against USDT, USDC, or WETH (in that order) with automatic decimal and symbol retrieval.
USD Conversion: Optional USD price conversion using CryptoCompare API for all quote tokens.

Prerequisites

Node.js (v18 or higher recommended) and npm.
Infura Account: Obtain an INFURA_PROJECT_ID with access to Ethereum, Polygon, Arbitrum, and Optimism (sign up at Infura).

Installation

Clone the repository:

git clone https://github.com/kukapay/uniswap-price-mcp.git
cd uniswap-price-mcp

Install dependencies:
```
npm install
```

Client Configuration:

{
  "mcpServers": {
    "Uniswap Price": {
      "command": "node",
      "args": ["path/to/uniswap-price-mcp/index.js"],
      "env": {
        "INFURA_PROJECT_ID": "your_infura_project_id"
      }
    }
  }
}

Replace your_infura_project_id with your Infura project ID.

Usage

Interact with the server using MCP-compatible clients.

Tools

getSupportedChains

Prompt:

Show me a list of all blockchain networks supported by the server, formatted as a table.

Result:

Chain ID	Chain Name
1	Ethereum Mainnet
137	Polygon
42161	Arbitrum
10	Optimism

getTokenPrice

Prompt:

What is the current price of DAI in USD on the Ethereum Mainnet?

Result:

Price of token DAI on chain 1 in USD: 1.00

Prompt:

Get the USD price of Chainlink (LINK) on the Polygon network.

Result:

Price of token LINK on chain 137 in USD: 18.50

License

This project is licensed under the MIT License. See the file for details.