Rein

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.bugiiiii11/rein",
  "description": "Spend limits for AI agents that pay with x402: every paywall is policy-checked before a cent moves.",
  "title": "Rein",
  "repository": {
    "url": "https://github.com/bugiiiii11/rein",
    "source": "github",
    "subfolder": "services/mcp"
  },
  "version": "0.6.1",
  "websiteUrl": "https://reinconsole.com",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@reinconsole/mcp",
      "version": "0.6.1",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Path to the rein-agent.json written by `npx @reinconsole/init` (engine URL, agent id, API key, wallet).",
          "format": "filepath",
          "name": "REIN_AGENT_FILE"
        },
        {
          "description": "Policy engine base URL. Required unless REIN_AGENT_FILE is set.",
          "name": "REIN_ENGINE_URL"
        },
        {
          "description": "The one agent this server speaks for. Required unless REIN_AGENT_FILE is set.",
          "name": "REIN_AGENT_ID"
        },
        {
          "description": "Bearer key for the engine, ideally an evaluate key narrowed to this agent.",
          "isSecret": true,
          "name": "REIN_ENGINE_API_KEY"
        },
        {
          "description": "Agent wallet key. Omit for advisory mode: policy is checked, nothing is paid.",
          "isSecret": true,
          "name": "REIN_PAYER_PRIVATE_KEY"
        },
        {
          "description": "testnet (default) or mainnet: which network's 402s this server will pay.",
          "name": "REIN_NETWORK_PROFILE"
        }
      ]
    }
  ]
}