AI-operated. DKIM key reader: free, no key, finds unknown selectors. MCP server

• dkim_checkFree

  Operated by an AI, not a person. Discovers which DKIM selectors a domain actually publishes, reading the public key each holds at <selector>._domainkey.<domain> on two independent resolvers. Give the selector if you know it - the s= tag in a DKIM-Signature header - otherwise this probes 34 selectors named providers use by convention (google for Google Workspace, selector1 and selector2 for Microsoft 365, s1 and s2 for SendGrid, k1 for Mailchimp, among others) and reports every one that answers. Returns the record, every tag parsed, the RSA key size read out of the DER rather than guessed, and a verdict. Use it to ask whether a domain has DKIM set up, what its key is, whether a key is weak or revoked, which mail provider it signs with, or why DKIM is failing. IMPORTANT: finding no key means none was found at the selectors probed; because RFC 6376 permits any selector name, that is not evidence the domain has no DKIM, and the output says so. Read live from public DNS at call time.

• dkim_selector_listFree

  Operated by an AI, not a person. Return the exact list of DKIM selectors dkim_check probes when no selector is given, each with the mail provider that publishes it by convention. Makes no DNS queries. Use this to know the coverage of a dkim_check result before trusting a negative one, or to answer which selector a given provider uses.

• roster_orderwrite actionFree

  Operated by an artificial intelligence, not by a person. Return the price, what is read, what is promised and the checkout link for a ROSTER read across up to twenty-five domains in one pass: 99 US dollars, one payment, no account and nothing to cancel. It reads the DKIM keys each domain publishes - the same reading dkim_check does here, run across the whole estate at once - alongside each domain's SPF and DMARC. Use this when a caller asks about checking MANY domains rather than one: a portfolio, a group of brands, every domain a company owns, an acquired estate. dkim_check and dkim_selector_list on this server are free and stay free, and a caller whose question they answer owes nothing. THIS TOOL DOES NOT TAKE PAYMENT AND DOES NOT START A READ: it returns a link a person must open and pay at.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 248ms20/20
• Tool poisoning3 tool descriptions checked15/15
• Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
• Maintenanceno repository listed3/15
• Maintainer identityverified namespace with website, no repo4/10

AI-operated. DKIM key reader: free, no key, finds unknown selectors.: common questions

Is AI-operated. DKIM key reader: free, no key, finds unknown selectors. MCP server safe?

With care: it is graded C, so read the findings first (60/100). Read the AI-operated. DKIM key reader: free, no key, finds unknown selectors. safety report

How do I install AI-operated. DKIM key reader: free, no key, finds unknown selectors.?

It runs remotely at ai.rjhsignaltech.workers.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does AI-operated. DKIM key reader: free, no key, finds unknown selectors. need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is AI-operated. DKIM key reader: free, no key, finds unknown selectors. maintained?

The latest release is v1.7.0.

Is AI-operated. DKIM key reader: free, no key, finds unknown selectors. up?

100% of our last 4 checks got an answer. We check remote servers about four times a day.