Domainee

Domainee is a custom domains API for SaaS with a native MCP server — 50 domains and 100 GB free.

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

  • Tools Ssl Check: Free public API. Check the TLS certificate of any public hostname. Returns issuer, subject, validity dates, days until expiry, full chain, cipher, protocol, and SAN list. No Bearer re
  • Tools Dns Record Lookup: Free public API. Look up DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA) for any domain.
  • Tools Whois Lookup: Free public API. WHOIS / RDAP lookup for a domain — registrar, status, created/updated/expires dates, nameservers.

What data it sees

Do you need an account

No: the server works without sign-in

Domainee is a custom domains API for SaaS with a native MCP server — 50 domains and 100 GB free.

The MCP server lets AI agents (Claude, Cursor, Windsurf, and any MCP-aware client) drive the Domainee API directly: onboard a customer's hostname and get back the CNAME target, force DNS + SSL probes, debug "my domain isn't working" tickets, and manage webhook endpoints — same Bearer key, rate limits, and workspace as the REST API. Hosted and stateless: nothing to deploy.

11 workspace tools (require a Bearer API key): list_domains, get_domain, create_domain, update_domain, delete_domain, check_domain, list_webhook_endpoints, create_webhook_endpoint, delete_webhook_endpoint, dns_check_records_exist, dns_check_records_match_exactly.

Plus 16 free diagnostic tools available with no key (an unauthenticated tools/list returns these): tools_ssl_check, tools_dns_record_lookup, tools_whois_lookup, tools_cname_lookup, tools_http_header_checker, tools_dns_propagation_checker, tools_redirect_checker, tools_spf_record_checker, tools_dkim_record_checker, tools_dmarc_record_checker, tools_txt_record_lookup, tools_domain_age_checker, tools_domain_availability_checker, tools_subdomain_finder, tools_reverse_ip_lookup, tools_website_status_checker. (27 total with a key.)

Endpoint: https://mcp.domainee.dev/mcp · Homepage: https://domainee.dev/mcp · Docs: https://domainee.dev/docs/mcp

How to connect

How to connect Domainee to Claude

The server address to paste into Claude settings:

https://domainee--admin-cl6n.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Domainee to ChatGPT

The server address to paste into ChatGPT settings:

https://domainee--admin-cl6n.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Domainee to Cursor

The server address to paste into Cursor settings:

https://domainee--admin-cl6n.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (16)

Raw names from tools/list. Only developers need these.

tools_ssl_checkFree public API. Check the TLS certificate of any public hostname. Returns issuer, subject, validity dates, days until expiry, full chain, cipher, protocol, and SAN list. No Bearer required.
tools_dns_record_lookupFree public API. Look up DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA) for any domain.
tools_whois_lookupFree public API. WHOIS / RDAP lookup for a domain — registrar, status, created/updated/expires dates, nameservers.
tools_cname_lookupFree public API. Resolve a hostname's CNAME chain. Useful for debugging custom-domain CNAME setups.
tools_http_header_checkerFree public API. Fetch a URL and return its response headers + security grade based on common security headers.
tools_dns_propagation_checkerFree public API. Query the same hostname across ~10 public DNS resolvers worldwide and report which ones return the same answer. Useful right after a DNS change.
tools_redirect_checkerFree public API. Follow a URL's redirect chain and return every hop with status code, response time, final destination.
tools_spf_record_checkerFree public API. Look up and validate the SPF record for a domain. Counts void/total DNS lookups, flags syntax issues, validates against RFC 7208's 10-lookup limit.
tools_domain_age_checkerFree public API. Returns a domain's registration date, age in days + years, last-updated date, and expiration.
tools_subdomain_finderFree public API. Enumerate subdomains for a target domain via Certificate Transparency logs + DNS resolution.
tools_reverse_ip_lookupFree public API. Reverse-DNS (PTR) lookup for an IP address. Returns one or more hostnames if configured.
tools_dmarc_record_checkerFree public API. Look up the DMARC record at _dmarc.<domain>, parse policy/alignment/reporting tags, flag missing or too-permissive settings.
tools_txt_record_lookupFree public API. Fetch all TXT records on a domain, classifying each as SPF, DKIM, DMARC, BIMI, verification token, or general.
tools_website_status_checkerFree public API. Check if a website is up or down. Returns HTTP status, response time, final URL after redirects, basic SSL info.
tools_dkim_record_checkerFree public API. Look up the DKIM record at <selector>._domainkey.<domain>, parse the public key, flag issues.
tools_domain_availability_checkerFree public API. Check availability of a name across one or more TLDs. Pass a `name` (no TLD) and an optional `tlds` array.