Polygon MCP Server
About
Integrates with the Polygon blockchain to enable cryptocurrency management, smart contract interaction, and transaction signing through a secure wallet connection using the user's seed phrase.
Details
- Author
- dablclub
- Repository
- Dablclub/polygon-mcp
- GitHub stars
- 3
- Downloads
- 179
- Categories
- Database, Other, Finance, Productivity, Design, Developer Tools, AI, Infrastructure, Frontend
- Tags
- #evm, #crypto, #smart-contracts
Jump to
- Call contract functions on Polygon PoS
- Get ERC20 token balances
- Transfer ERC20 tokens
- Get current gas prices
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
Polygon MCP ServerCommand (node, npx, python, etc.)nodeArguments-
Argument 1
/path/to/polygon-mcp/build/index.js
Environment-
SEED_PHRASE
your twelve word seed phrase here
Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
-
Argument 1
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
npm start
call_contract
Call a contract function on Polygon PoS. Parameters: contractAddress (string), functionName (string), functionArgs (array), abi (string), value (optional number)
erc20_balance
Get the balance of an ERC20 token on Polygon PoS. Parameters: contractAddress (string)
erc20_transfer
Transfer an ERC20 token on Polygon PoS. Parameters: contractAddress (string), toAddress (string), amount (number)
get_gas_price
Get the current gas price on Polygon PoS.
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"polygon mcp server": {
"env": {
"SEED_PHRASE": "your twelve word seed phrase here"
},
"args": [
"/path/to/polygon-mcp/build/index.js"
],
"command": "node"
}
}
}Linux
{
"env": {
"SEED_PHRASE": "your twelve word seed phrase here"
},
"args": [
"/path/to/polygon-mcp/build/index.js"
],
"command": "node"
}Macos
{
"env": {
"SEED_PHRASE": "your twelve word seed phrase here"
},
"args": [
"/path/to/polygon-mcp/build/index.js"
],
"command": "node"
}Windows
{
"env": {
"SEED_PHRASE": "your twelve word seed phrase here"
},
"args": [
"/c",
"node",
"/path/to/polygon-mcp/build/index.js"
],
"command": "cmd"
}A Model Context Protocol (MCP) server that provides onchain tools for Claude AI, allowing it to interact with the Polygon PoS blockchain.
- Call contract functions on Polygon PoS
- Get ERC20 token balances
- Transfer ERC20 tokens
- Get current gas prices
git clone https://github.com/your-username/polygon-mcp.git cd polygon-mcp
Create a.envfile in the root directory with the following variables:
SEED_PHRASE="your twelve word seed phrase here"
To use this MCP server with Claude, you need to add it to your MCP settings file:
{ "mcpServers": { "polygon": { "command": "node", "args": ["/path/to/polygon-mcp/build/index.js"], "env": { "SEED_PHRASE": "your twelve word seed phrase here" }, "disabled": false, "autoApprove": [] } } }
{ "mcpServers": { "polygon": { "command": "node", "args": ["/path/to/polygon-mcp/build/index.js"], "env": { "SEED_PHRASE": "your twelve word seed phrase here" }, "disabled": false, "autoApprove": [] } } }
Call a contract function on Polygon PoS.
- contractAddress: The address of the contract to call
- functionName: The name of the function to call
- functionArgs: The arguments to pass to the function
- abi: The ABI of the contract
- value(optional): The value of MATIC to send with the transaction
Get the balance of an ERC20 token on Polygon PoS.
- contractAddress: The address of the contract to get the balance of
- contractAddress: The address of the contract to transfer the token from
- toAddress: The address of the recipient
- amount: The amount of tokens to transfer
Get the current gas price on Polygon PoS.
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