Security & Testing

demisignal.com

Generates and validates SPF, DMARC, DKIM, and other email authentication DNS records for a domain.

1 endpoint3 known toolsFirst detected October 15, 2026Last detected October 15, 2026

ENDPOINT 1

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

No auth detected

MCP server metadata

Name: DemiSignal
Version: 1.0.0

Capabilities

toolsresourcesprompts

Server instructions

Email authentication tools for a domain. check_domain looks up the domain's live DNS and grades its DMARC, SPF, DKIM, MX, BIMI and MTA-STS records. generate_spf_record and generate_dmarc_record build a record from your answers without looking anything up.

Known tools 3

check_domain

Look up a domain's live DNS and grade its email authentication: DMARC, SPF, DKIM (common selectors), MX, BIMI and MTA-STS.

Potential side effects

generate_spf_record

Build an SPF TXT record from the services and servers that send email for a domain, with an estimate of the DNS lookups it uses against SPF's limit of 10.

Potential side effects

generate_dmarc_record

Build a DMARC TXT record and the host to publish it at, from a policy and the addresses that should receive aggregate reports.

Potential side effects

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.demisignal]
url = "https://demisignal.com/mcp?utm_source=mcp-registry"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: demisignal
Remote MCP URL: https://demisignal.com/mcp?utm_source=mcp-registry

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

{
  "name": "demisignal",
  "transport": "streamable-http",
  "url": "https://demisignal.com/mcp?utm_source=mcp-registry"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.