English Français العربية

io.github.0xsims/rubric-mcp

Official registry Finance and payments

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

Source code

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @rubric-protocol/mcp-server
Claude Code 
claude mcp add rubric-mcp -e 'RUBRIC_WALLET_KEY=<your rubric_wallet_key>' -e 'RUBRIC_X402_DAILY_LIMIT=<RUBRIC_X402_DAILY_LIMIT>' -e 'RUBRIC_API_KEY=<your rubric_api_key>' -e 'RUBRIC_MCP_MODULES=<RUBRIC_MCP_MODULES>' -- npx -y @rubric-protocol/mcp-server@2.2.2
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "rubric-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "@rubric-protocol/mcp-server@2.2.2"
            ],
            "env": {
                "RUBRIC_WALLET_KEY": "<your rubric_wallet_key>",
                "RUBRIC_X402_DAILY_LIMIT": "<RUBRIC_X402_DAILY_LIMIT>",
                "RUBRIC_API_KEY": "<your rubric_api_key>",
                "RUBRIC_MCP_MODULES": "<RUBRIC_MCP_MODULES>"
            }
        }
    }
}

Environment variables

  • 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).

Frequently asked questions

What is io.github.0xsims/rubric-mcp?

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

How do I install io.github.0xsims/rubric-mcp?

It runs on your machine. In Claude Code: claude mcp add rubric-mcp -e 'RUBRIC_WALLET_KEY=<your rubric_wallet_key>' -e 'RUBRIC_X402_DAILY_LIMIT=<RUBRIC_X402_DAILY_LIMIT>' -e 'RUBRIC_API_KEY=<your rubric_api_key>' -e 'RUBRIC_MCP_MODULES=<RUBRIC_MCP_MODULES>' -- npx -y @rubric-protocol/mcp-server@2.2.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.0xsims/rubric-mcp need an API key?

Yes. It expects RUBRIC_WALLET_KEY, RUBRIC_API_KEY, which you set in its configuration.

Is io.github.0xsims/rubric-mcp open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.0xsims/rubric-mcp?

It is published by 0xsims. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.