Alpaca trading API with hard daily USD cap guard. Paper trading default; live opt-in.
Connect Runs on your machine
claude mcp add alpaca-guard -e ALPACA_API_KEY=<ALPACA_API_KEY> -e ALPACA_SECRET_KEY=<ALPACA_SECRET_KEY> -- npx -y [email protected]
{
"mcpServers": {
"alpaca-guard": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"ALPACA_API_KEY": "<ALPACA_API_KEY>",
"ALPACA_SECRET_KEY": "<ALPACA_SECRET_KEY>"
}
}
}
}
{
"mcpServers": {
"alpaca-guard": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"ALPACA_API_KEY": "<ALPACA_API_KEY>",
"ALPACA_SECRET_KEY": "<ALPACA_SECRET_KEY>"
}
}
}
}
{
"servers": {
"alpaca-guard": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"ALPACA_API_KEY": "<ALPACA_API_KEY>",
"ALPACA_SECRET_KEY": "<ALPACA_SECRET_KEY>"
}
}
}
}
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 |
|---|---|
ALPACA_API_KEYOptional, secret | Alpaca API key. Leave unset for paper trading mode. |
ALPACA_SECRET_KEYOptional, secret | Alpaca secret key. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 16 May 2026 |
| Last updated | 16 May 2026 |
| Registry name | io.github.evidai/alpaca-guard |
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