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DemiSignal

Official registry Other

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

Website

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).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http demisignal 'https://demisignal.com/mcp?utm_source=mcp-registry'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "demisignal": {
            "type": "http",
            "url": "https://demisignal.com/mcp?utm_source=mcp-registry"
        }
    }
}

Frequently asked questions

What is DemiSignal?

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

How do I install DemiSignal?

It runs as a remote server. In Claude Code: claude mcp add --transport http demisignal 'https://demisignal.com/mcp?utm_source=mcp-registry'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does DemiSignal need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains DemiSignal?

It is published by com.demisignal. 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.