Reins

io.github.R2Rlabs/hyperliquid-reins · v0.1.8

Risk limits and an audit log for AI agents trading Hyperliquid, enforced outside the model.

Website Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add hyperliquid-reins -e REINS_SYMBOLS=<REINS_SYMBOLS> -e REINS_MAX_POSITION_USD=<REINS_MAX_POSITION_USD> -e REINS_DAILY_LOSS_USD=<REINS_DAILY_LOSS_USD> -e REINS_MAX_LEVERAGE=<REINS_MAX_LEVERAGE> -e REINS_MODE=<REINS_MODE> -e REINS_NETWORK=<REINS_NETWORK> -e REINS_REQUIRE_STOP_LOSS=<REINS_REQUIRE_STOP_LOSS> -e REINS_LOG_FILE=<REINS_LOG_FILE> -e REINS_PAPER_FILE=<REINS_PAPER_FILE> -e REINS_ACCOUNT_ADDRESS=<REINS_ACCOUNT_ADDRESS> -e REINS_PRIVATE_KEY=<REINS_PRIVATE_KEY> -- npx -y @r2rlabs/[email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "hyperliquid-reins": {
      "command": "npx",
      "args": [
        "-y",
        "@r2rlabs/[email protected]"
      ],
      "env": {
        "REINS_SYMBOLS": "<REINS_SYMBOLS>",
        "REINS_MAX_POSITION_USD": "<REINS_MAX_POSITION_USD>",
        "REINS_DAILY_LOSS_USD": "<REINS_DAILY_LOSS_USD>",
        "REINS_MAX_LEVERAGE": "<REINS_MAX_LEVERAGE>",
        "REINS_MODE": "<REINS_MODE>",
        "REINS_NETWORK": "<REINS_NETWORK>",
        "REINS_REQUIRE_STOP_LOSS": "<REINS_REQUIRE_STOP_LOSS>",
        "REINS_LOG_FILE": "<REINS_LOG_FILE>",
        "REINS_PAPER_FILE": "<REINS_PAPER_FILE>",
        "REINS_ACCOUNT_ADDRESS": "<REINS_ACCOUNT_ADDRESS>",
        "REINS_PRIVATE_KEY": "<REINS_PRIVATE_KEY>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "hyperliquid-reins": {
      "command": "npx",
      "args": [
        "-y",
        "@r2rlabs/[email protected]"
      ],
      "env": {
        "REINS_SYMBOLS": "<REINS_SYMBOLS>",
        "REINS_MAX_POSITION_USD": "<REINS_MAX_POSITION_USD>",
        "REINS_DAILY_LOSS_USD": "<REINS_DAILY_LOSS_USD>",
        "REINS_MAX_LEVERAGE": "<REINS_MAX_LEVERAGE>",
        "REINS_MODE": "<REINS_MODE>",
        "REINS_NETWORK": "<REINS_NETWORK>",
        "REINS_REQUIRE_STOP_LOSS": "<REINS_REQUIRE_STOP_LOSS>",
        "REINS_LOG_FILE": "<REINS_LOG_FILE>",
        "REINS_PAPER_FILE": "<REINS_PAPER_FILE>",
        "REINS_ACCOUNT_ADDRESS": "<REINS_ACCOUNT_ADDRESS>",
        "REINS_PRIVATE_KEY": "<REINS_PRIVATE_KEY>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "hyperliquid-reins": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@r2rlabs/[email protected]"
      ],
      "env": {
        "REINS_SYMBOLS": "<REINS_SYMBOLS>",
        "REINS_MAX_POSITION_USD": "<REINS_MAX_POSITION_USD>",
        "REINS_DAILY_LOSS_USD": "<REINS_DAILY_LOSS_USD>",
        "REINS_MAX_LEVERAGE": "<REINS_MAX_LEVERAGE>",
        "REINS_MODE": "<REINS_MODE>",
        "REINS_NETWORK": "<REINS_NETWORK>",
        "REINS_REQUIRE_STOP_LOSS": "<REINS_REQUIRE_STOP_LOSS>",
        "REINS_LOG_FILE": "<REINS_LOG_FILE>",
        "REINS_PAPER_FILE": "<REINS_PAPER_FILE>",
        "REINS_ACCOUNT_ADDRESS": "<REINS_ACCOUNT_ADDRESS>",
        "REINS_PRIVATE_KEY": "<REINS_PRIVATE_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
`REINS_SYMBOLS` Required	Markets the agent may trade, comma separated, e.g. BTC,ETH. Every other market is refused.
`REINS_MAX_POSITION_USD` Required	Largest position per market, in USD.
`REINS_DAILY_LOSS_USD` Required	Realised loss in a UTC day after which new risk is refused.
`REINS_MAX_LEVERAGE` Optional	Largest total exposure as a multiple of account value.
`REINS_MODE` Optional	paper (live prices, simulated fills, nothing signed) or live.
`REINS_NETWORK` Optional	Hyperliquid network for prices and, in live mode, orders. Mainnet spends real money.
`REINS_REQUIRE_STOP_LOSS` Optional	true to refuse any order that adds risk without a stop-loss.
`REINS_LOG_FILE` Optional	Decision log, one JSON line per action with the agent's stated reason. In memory if unset.
`REINS_PAPER_FILE` Optional	Where the paper account is kept between runs. In memory if unset.
`REINS_ACCOUNT_ADDRESS` Optional	Live mode: the Hyperliquid account traded. Approve Reins' 2 bp builder fee from it first: npx @r2rlabs/reins approve-builder
`REINS_PRIVATE_KEY` Optional, secret	Live mode: an API wallet's key, which can trade but not withdraw. Never the account's own key.

Details

Package	`@r2rlabs/[email protected]` (NPM, stdio)
First published	4 Oct 2026
Last updated	4 Oct 2026
Registry name	`io.github.R2Rlabs/hyperliquid-reins`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

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