Rubric Mcp

MCP server · by 0xsims

AI Agents npm v2.2.2

Attested evidence tools for AI agents: sanctions screening, agent/wallet records, paid via x402.

View source ↗ Generate config for multiple servers More servers

Install

Pin version registry version 2.2.2

npm
npx -y @rubric-protocol/mcp-server

npm
npx -y @rubric-protocol/mcp-server@2.2.2

Setup by client

Pick your client — the config below is generated for this server (local stdio). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server@2.2.2"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --env RUBRIC_WALLET_KEY=<YOUR_RUBRIC_WALLET_KEY> --env RUBRIC_API_KEY=<YOUR_RUBRIC_API_KEY> rubric-mcp -- npx -y @rubric-protocol/mcp-server

claude mcp add --env RUBRIC_WALLET_KEY=<YOUR_RUBRIC_WALLET_KEY> --env RUBRIC_API_KEY=<YOUR_RUBRIC_API_KEY> rubric-mcp -- npx -y @rubric-protocol/mcp-server@2.2.2

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server@2.2.2"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

{
  "servers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server@2.2.2"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "rubric-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rubric-protocol/mcp-server@2.2.2"
      ],
      "env": {
        "RUBRIC_WALLET_KEY": "<YOUR_RUBRIC_WALLET_KEY>",
        "RUBRIC_API_KEY": "<YOUR_RUBRIC_API_KEY>"
      }
    }
  }
}

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

RUBRIC_WALLET_KEY secret — Optional. USDC-on-Base wallet private key enabling paid x402 tools; without it paid tools return setup guidance.
RUBRIC_X402_DAILY_LIMIT — Optional. Daily spend ceiling in USD for paid tools (default 1.00).
RUBRIC_API_KEY secret — Optional. Rubric developer key for HCS-anchored attestation.
RUBRIC_MCP_MODULES — Optional. Comma-separated tool modules (default core,x402).

About this server

Distributed as npm, listed under AI Agents. Review our MCP security guide before granting access to real data.

Frequently asked questions

How do I install Rubric Mcp?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is Rubric Mcp free to use?

The MCP server itself is free to install. The source is public on https://github.com/0xsims/rubric-mcp. Any third-party service it calls may require its own API key and account.

Which clients support Rubric Mcp?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

Add this badge

Publish this server? Link back with a badge on your README or site — copy either snippet.

Markdown

[![Listed on MCPNav](https://mcpnav.net/badge/rubric-mcp.svg)](https://mcpnav.net/server/rubric-mcp/)

HTML

<a href="https://mcpnav.net/server/rubric-mcp/"><img src="https://mcpnav.net/badge/rubric-mcp.svg" alt="Listed on MCPNav" height="20"></a>