Reins

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.R2Rlabs/hyperliquid-reins",
  "description": "Risk limits and an audit log for AI agents trading Hyperliquid, enforced outside the model.",
  "title": "Reins",
  "repository": {
    "url": "https://github.com/R2Rlabs/reins",
    "source": "github"
  },
  "version": "0.1.8",
  "websiteUrl": "https://r2rlabs.com",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@r2rlabs/reins",
      "version": "0.1.8",
      "runtimeHint": "npx",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Markets the agent may trade, comma separated, e.g. BTC,ETH. Every other market is refused.",
          "isRequired": true,
          "format": "string",
          "placeholder": "BTC,ETH",
          "name": "REINS_SYMBOLS"
        },
        {
          "description": "Largest position per market, in USD.",
          "isRequired": true,
          "format": "number",
          "placeholder": "5000",
          "name": "REINS_MAX_POSITION_USD"
        },
        {
          "description": "Realised loss in a UTC day after which new risk is refused.",
          "isRequired": true,
          "format": "number",
          "placeholder": "500",
          "name": "REINS_DAILY_LOSS_USD"
        },
        {
          "description": "Largest total exposure as a multiple of account value.",
          "format": "number",
          "default": "3",
          "name": "REINS_MAX_LEVERAGE"
        },
        {
          "description": "paper (live prices, simulated fills, nothing signed) or live.",
          "format": "string",
          "default": "paper",
          "choices": [
            "paper",
            "live"
          ],
          "name": "REINS_MODE"
        },
        {
          "description": "Hyperliquid network for prices and, in live mode, orders. Mainnet spends real money.",
          "format": "string",
          "default": "testnet",
          "choices": [
            "testnet",
            "mainnet"
          ],
          "name": "REINS_NETWORK"
        },
        {
          "description": "true to refuse any order that adds risk without a stop-loss.",
          "format": "boolean",
          "default": "false",
          "name": "REINS_REQUIRE_STOP_LOSS"
        },
        {
          "description": "Decision log, one JSON line per action with the agent's stated reason. In memory if unset.",
          "format": "filepath",
          "name": "REINS_LOG_FILE"
        },
        {
          "description": "Where the paper account is kept between runs. In memory if unset.",
          "format": "filepath",
          "name": "REINS_PAPER_FILE"
        },
        {
          "description": "Live mode: the Hyperliquid account traded. Approve Reins' 2 bp builder fee from it first: npx @r2rlabs/reins approve-builder",
          "format": "string",
          "name": "REINS_ACCOUNT_ADDRESS"
        },
        {
          "description": "Live mode: an API wallet's key, which can trade but not withdraw. Never the account's own key.",
          "format": "string",
          "isSecret": true,
          "name": "REINS_PRIVATE_KEY"
        }
      ]
    }
  ]
}