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DemiSignal

com.demisignal/mcp · v1.0.0

Tools changed (7 days)

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	prompts, resources, tools
Tool definitions	3 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

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

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

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

check_domain
Look up a domain's live DNS and grade its email authentication: DMARC, SPF, DKIM (common selectors), MX, BIMI and MTA-STS. Returns each record, its status and the issues found, with a guide link per issue. A domain checked in the last few minutes is answered from that check (cached, with its age); p
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. Computes from the arguments only; nothing is looked up or stored.
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. Notes what the record does not cover yet. Computes from the arguments only; nothing is looked up or stored.

Website · JSON · Text for agents · Registry updated 2026-10-14