DemiSignal

MCP server · by demisignal

Other Tools Streamable HTTP v1.0.0

Check a domain's DMARC, SPF, DKIM, MX, BIMI and MTA-STS records. Generate SPF and DMARC records.

Website ↗ Generate config for multiple servers More servers

Install

Run one of the commands below, then pick your client in the next section.

Streamable HTTP
https://demisignal.com/mcp?utm_source=mcp-registry

Setup by client

Pick your client — the config below is generated for this server (hosted endpoint).

Remote (hosted) endpoint

https://demisignal.com/mcp?utm_source=mcp-registry

Claude Desktop: Settings → Connectors → Add custom connector, paste this URL.

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --transport http mcp-demisignal https://demisignal.com/mcp?utm_source=mcp-registry

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json (hosted endpoint)

{
  "mcpServers": {
    "mcp-demisignal": {
      "url": "https://demisignal.com/mcp?utm_source=mcp-registry"
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json (hosted endpoint)

{
  "servers": {
    "mcp-demisignal": {
      "type": "http",
      "url": "https://demisignal.com/mcp?utm_source=mcp-registry"
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json (hosted endpoint)

{
  "mcpServers": {
    "mcp-demisignal": {
      "serverUrl": "https://demisignal.com/mcp?utm_source=mcp-registry"
    }
  }
}

Format verified against the official Windsurf docs ↗.

About this server

Distributed as Streamable HTTP, listed under Other Tools. Review our MCP security guide before granting access to real data.

Frequently asked questions

How do I install DemiSignal?

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 DemiSignal free to use?

The MCP server itself is free to install. Any third-party service it calls may require its own API key and account.

Which clients support DemiSignal?

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

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