RemoteFree

Nexus MCP server

nexus-api-lab/nexus-mcp

Japanese LLM security — prompt injection detection (jpi-guard) + PII masking (PII Guard). Free.

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Install Nexus in Claude Code

Claude Code
claude mcp add --transport http nexus-api-lab-nexus https://mcp.nexus-api-lab.com/
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "nexus-api-lab-nexus": {
      "url": "https://mcp.nexus-api-lab.com/"
    }
  }
}

Frequently asked questions

What does the Nexus MCP server do?

Japanese LLM security — prompt injection detection (jpi-guard) + PII masking (PII Guard). Free.

Is the Nexus MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Nexus run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Nexus to Claude Code?

Run: claude mcp add --transport http nexus-api-lab-nexus https://mcp.nexus-api-lab.com/

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