VerifyPulse: email deliverability checks

Connect it to your AI

Claude Code

claude mcp add --transport http verifypulse https://verifypulse-seven.vercel.app/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://verifypulse-seven.vercel.app/mcp

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "verifypulse": {
      "url": "https://verifypulse-seven.vercel.app/mcp"
    }
  }
}

Tools it offers

12 tools, as the server itself reported during our check on Oct 31, 2026.

• inspect_domain_dnsFree. Audit one sending domain: MX hosts, SPF with every include expanded and the true DNS lookup count against the limit of 10, DMARC policy including inheritance from the parent domain, and published DKIM keys. Returns
• audit_sending_domainsFree for up to 3 domains per call. Audit several sending domains at once and get a grade, SPF lookup count, DMARC policy, DKIM status, MTA-STS (policy checked against the MX hosts), TLS-RPT, BIMI and fixes for each, plus
• monitor_sending_domainsFree for up to 3 domains per call. Report what changed in SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT and BIMI since a previous run. Pass the `snapshots` object returned by the previous call as `previous`; the server stores n
• watch_sending_domainsHosted monitoring. Register domains for a daily server-side check of SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT and BIMI; when something changes, the changes are POSTed as JSON to your https webhook_url. Free for up to 3 dom
• flatten_spfFree. Replace the includes in a domain's SPF record with the IP ranges they resolve to, and return the TXT records to publish. Use it when an SPF record is at or over the 10-lookup limit.
• get_fix_kitFix a domain whose email goes to spam or fails SPF, DKIM or DMARC. Returns the exact DNS records to publish (host, type, value) for its mail provider, built from live DNS, in order, with the reason for each. Called witho
• verify_emailCheck an email address: syntax, whether its domain accepts mail, typo suggestion, disposable and shared-mailbox flags. Checks the domain, not the individual inbox. Costs one credit with an API key (POST /v1/agent/provisi
• domain_intelFree. Registration data for one domain from the registry (RDAP): when it was registered and its age in days, expiry, registrar, status codes, nameservers and DNSSEC. Flags domains registered in the last 30 days, a strong
• check_tls_certificateFree. The TLS certificate a host serves on port 443: whether it validates, issuer, names covered, expiry and days left.
• check_blocklistsFree. Whether an IPv4 address, or a domain's MX and A addresses, are listed on the SpamCop and PSBL blocklists. Spamhaus and Barracuda are not queried (their terms require a subscription); the result says which lists wer
• analyze_email_authenticationFree. Explain why an email passed or failed authentication or went to spam. Pass the raw message, or just its headers: checks DKIM signatures (verified when the body is included), whether the sending IP is authorized by
• get_x402_payment_endpointsList the paid HTTP endpoints, their prices in USDC on Base, and the free endpoints.

Questions