AI agent access to on-chain DeFi data on Polygon & Arbitrum: balances, positions, prices.
Connect Runs on your machine
claude mcp add defi-mcp -e POLYGON_RPC_URL=<POLYGON_RPC_URL> -e ARBITRUM_RPC_URL=<ARBITRUM_RPC_URL> -- uvx defi-mcp==0.1.6
{
"mcpServers": {
"defi-mcp": {
"command": "uvx",
"args": [
"defi-mcp==0.1.6"
],
"env": {
"POLYGON_RPC_URL": "<POLYGON_RPC_URL>",
"ARBITRUM_RPC_URL": "<ARBITRUM_RPC_URL>"
}
}
}
}
{
"mcpServers": {
"defi-mcp": {
"command": "uvx",
"args": [
"defi-mcp==0.1.6"
],
"env": {
"POLYGON_RPC_URL": "<POLYGON_RPC_URL>",
"ARBITRUM_RPC_URL": "<ARBITRUM_RPC_URL>"
}
}
}
}
{
"servers": {
"defi-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"defi-mcp==0.1.6"
],
"env": {
"POLYGON_RPC_URL": "<POLYGON_RPC_URL>",
"ARBITRUM_RPC_URL": "<ARBITRUM_RPC_URL>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
POLYGON_RPC_URLRequired, secret | RPC URL for Polygon (e.g. from Alchemy or Infura) |
ARBITRUM_RPC_URLOptional, secret | RPC URL for Arbitrum One (e.g. from Alchemy or Infura) |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 23 Jun 2026 |
| Last updated | 23 Jun 2026 |
| Registry name | io.github.matiosera3-ops/defi-mcp |
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