Reins

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-04T02:36:54.463281Z",
      "publishedAt": "2026-10-04T02:36:54.463281Z",
      "statusChangedAt": "2026-10-04T02:36:54.463281Z"
    }
  },
  "server": {
    "name": "io.github.R2Rlabs/hyperliquid-reins",
    "title": "Reins",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.1.8",
    "packages": [
      {
        "version": "0.1.8",
        "transport": {
          "type": "stdio"
        },
        "identifier": "@r2rlabs/reins",
        "runtimeHint": "npx",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "REINS_SYMBOLS",
            "format": "string",
            "isRequired": true,
            "description": "Markets the agent may trade, comma separated, e.g. BTC,ETH. Every other market is refused.",
            "placeholder": "BTC,ETH"
          },
          {
            "name": "REINS_MAX_POSITION_USD",
            "format": "number",
            "isRequired": true,
            "description": "Largest position per market, in USD.",
            "placeholder": "5000"
          },
          {
            "name": "REINS_DAILY_LOSS_USD",
            "format": "number",
            "isRequired": true,
            "description": "Realised loss in a UTC day after which new risk is refused.",
            "placeholder": "500"
          },
          {
            "name": "REINS_MAX_LEVERAGE",
            "format": "number",
            "default": "3",
            "description": "Largest total exposure as a multiple of account value."
          },
          {
            "name": "REINS_MODE",
            "format": "string",
            "choices": [
              "paper",
              "live"
            ],
            "default": "paper",
            "description": "paper (live prices, simulated fills, nothing signed) or live."
          },
          {
            "name": "REINS_NETWORK",
            "format": "string",
            "choices": [
              "testnet",
              "mainnet"
            ],
            "default": "testnet",
            "description": "Hyperliquid network for prices and, in live mode, orders. Mainnet spends real money."
          },
          {
            "name": "REINS_REQUIRE_STOP_LOSS",
            "format": "boolean",
            "default": "false",
            "description": "true to refuse any order that adds risk without a stop-loss."
          },
          {
            "name": "REINS_LOG_FILE",
            "format": "filepath",
            "description": "Decision log, one JSON line per action with the agent's stated reason. In memory if unset."
          },
          {
            "name": "REINS_PAPER_FILE",
            "format": "filepath",
            "description": "Where the paper account is kept between runs. In memory if unset."
          },
          {
            "name": "REINS_ACCOUNT_ADDRESS",
            "format": "string",
            "description": "Live mode: the Hyperliquid account traded. Approve Reins' 2 bp builder fee from it first: npx @r2rlabs/reins approve-builder"
          },
          {
            "name": "REINS_PRIVATE_KEY",
            "format": "string",
            "isSecret": true,
            "description": "Live mode: an API wallet's key, which can trade but not withdraw. Never the account's own key."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/R2Rlabs/reins",
      "source": "github"
    },
    "websiteUrl": "https://r2rlabs.com",
    "description": "Risk limits and an audit log for AI agents trading Hyperliquid, enforced outside the model."
  }
}