Defi MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 105 installs a week from pypi. Last commit 24 Jun 2026.
AI agent access to on-chain DeFi data on Polygon & Arbitrum: balances, positions, prices.
Nothing serious here today
Today is the operative word: we check Defi MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add defi-mcp -e 'POLYGON_RPC_URL=<POLYGON_RPC_URL>' -- uvx defi-mcp{
"mcpServers": {
"defi-mcp": {
"command": "uvx",
"args": [
"defi-mcp"
],
"env": {
"POLYGON_RPC_URL": "<POLYGON_RPC_URL>"
}
}
}
}[mcp_servers.defi-mcp]
command = "uvx"
args = ["defi-mcp"]
env = { POLYGON_RPC_URL = "<POLYGON_RPC_URL>" }{
"mcpServers": {
"defi-mcp": {
"command": "uvx",
"args": [
"defi-mcp"
],
"env": {
"POLYGON_RPC_URL": "<POLYGON_RPC_URL>"
}
}
}
}{
"servers": {
"defi-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"defi-mcp"
],
"env": {
"POLYGON_RPC_URL": "<POLYGON_RPC_URL>"
}
}
}
}Put your own value in place of
<POLYGON_RPC_URL> (RPC URL for Polygon (e.g. from Alchemy or Infura)).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
ARBITRUM_RPC_URL (RPC URL for Arbitrum One (e.g. from Alchemy or Infura)).
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Defi MCP — questions
Answers built from our own checks of this server.