How do I install the polygon mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `SEED_PHRASE` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

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Polygon MCP Server

A Model Context Protocol (MCP) server that provides onchain tools for Claude AI, allowing it to interact with the Polygon PoS blockchain

Local serverstdio

What is the Polygon MCP Server?

Polygon MCP connects Polygon MCP to AI assistants that speak the Model Context Protocol. A Model Context Protocol (MCP) server that provides onchain tools for Claude AI, allowing it to interact with the Polygon PoS blockchain.

What Polygon MCP does

A Model Context Protocol (MCP) server that provides onchain tools for Claude AI, allowing it to interact with the Polygon PoS blockchain.

Key capabilities

Call contract functions on Polygon PoS
Get ERC20 token balances
Transfer ERC20 tokens
Get current gas prices

Practical notes

Maintained by Dablclub.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
call_contract
erc20_balance
erc20_transfer
get_gas_price

How to install the Polygon MCP Server

{
  "mcpServers": {
    "polygon": {
      "command": "node",
      "args": [
        "/path/to/polygon-mcp/build/index.js"
      ],
      "env": {
        "SEED_PHRASE": "your twelve word seed phrase here"
      },
      "disabled": false,
      "autoApprove": []
    }
  }
}

From the project documentation. Replace placeholders and example paths before connecting.

Configuration

Variable	Description	Required
SEED_PHRASE	Declared in the maintainer’s client configuration.	Check documentation

Example prompts to try

“Use Polygon MCP to call contract.”
“Use Polygon MCP to erc20 balance.”
“Use Polygon MCP to erc20 transfer.”

Frequently asked questions

A Model Context Protocol (MCP) server that provides onchain tools for Claude AI, allowing it to interact with the Polygon PoS blockchain Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.