Claude Plugin MCP Server (Official): Install & Setup

Install Claude Plugin in Claude Code

Remote URL

Claude Code

claude mcp add --transport http claude-plugin https://dnsdoctor.dev/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "claude-plugin": {
      "url": "https://dnsdoctor.dev/mcp"
    }
  }
}

npm

Claude Code

claude mcp add claude-plugin -- npx -y @dnsdoctor/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "claude-plugin": {
      "command": "npx",
      "args": [
        "-y",
        "@dnsdoctor/mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Claude Plugin MCP server do?

Scan and fix a domain's email authentication (SPF, DMARC, DKIM, MX), blacklist status and domain/SSL expiry, with deterministic, validated fix records.

Is the Claude Plugin MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Claude Plugin run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add Claude Plugin to Claude Code?

Run: claude mcp add --transport http claude-plugin https://dnsdoctor.dev/mcp

More security & identity MCP servers

View all

MINT Protocol

FoundryNet/mint-mcp

MINT Protocol work attestation for agents: cryptographically attest, verify, rate and discover agent work to build portable on-chain reputation.

RemoteAccount neededPython

ARGUS-3

alexar76/argus

Query ARGUS-3 and check its status; WARDEN vets third-party MCP servers with a scored firewall, tool-definition pinning and drift detection.

LocalAccount neededTypeScript

Agentdevx SDK

mirajmahmudul/agentdevx-sdk

Identity and credential gateway for agents: Ed25519 identity, encrypted credential vault, OPA policies with audit logging, per-agent memory and web scraping.

LocalAccount neededTypeScript

Skuuy

deaabie/skuuy-mcp

13 privacy-first network, auth & web tools for AI agents — no API key, 60 req/min free.

RemoteFree

AgentValet

AgentValet/AgentValet

Identity and credential broker for MCP servers: issues scoped, short-lived credentials per agent, with audit logging and human approval gates.

LocalAccount neededTypeScript

Hardcover OAuth

benjuntilla/hardcover-oauth-mcp

Read and update your Hardcover library, progress, lists, and goals. Sign in with Hardcover OAuth.

RemoteAccount needed