How do I install Rein?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 55 (Fair). The formula is published on the methodology page.

MCPpedia

Rein MCP Server — Install for Claude, Cursor & VS Code | MCPpedia

Rein MCP Server

Name: Rein MCP Server
Author: bugiiiii11

Spend limits for AI agents that pay with x402: every paywall is policy-checked before a cent moves.

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Registrybugiiiii11

55Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "bugiiiii11-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@reinconsole/mcp@0.7.0"
      ],
      "env": {
        "REIN_AGENT_FILE": "",
        "REIN_ENGINE_URL": "",
        "REIN_AGENT_ID": "",
        "REIN_ENGINE_API_KEY": "YOUR_REIN_ENGINE_API_KEY",
        "REIN_PAYER_PRIVATE_KEY": "YOUR_REIN_PAYER_PRIVATE_KEY",
        "REIN_NETWORK_PROFILE": ""
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
REIN_AGENT_FILE	No	Path to the rein-agent.json written by `npx @reinconsole/init` (engine URL, agent id, API key, wallet).
REIN_ENGINE_URL	No	Policy engine base URL. Required unless REIN_AGENT_FILE is set.
REIN_AGENT_ID	No	The one agent this server speaks for. Required unless REIN_AGENT_FILE is set.
REIN_ENGINE_API_KEY	No	Bearer key for the engine, ideally an evaluate key narrowed to this agent. Secret.
REIN_PAYER_PRIVATE_KEY	No	Agent wallet key. Omit for advisory mode: policy is checked, nothing is paid. Secret.
REIN_NETWORK_PROFILE	No	testnet (default) or mainnet: which network's 402s this server will pay.

Rein MCP Server

Install

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