Domain intelligence tools for AI agents
A hosted MCP server that gives Claude, Cursor, VS Code and other MCP clients WHOIS, DNS, SSL, subdomain and email-security lookups. No key needed for the first 1,000 lookups a month.
https://oti-labs.com/mcp
Connect
Add the server to your client. No key is needed for the first 1,000 lookups a month.
claude mcp add --transport http domain-intelligence https://oti-labs.com/mcp
// ~/.cursor/mcp.json
{
"mcpServers": {
"domain-intelligence": {
"url": "https://oti-labs.com/mcp"
}
}
}
// .vscode/mcp.json
{
"servers": {
"domain-intelligence": {
"type": "http",
"url": "https://oti-labs.com/mcp"
}
}
}
// ~/.codeium/windsurf/mcp_config.json
{
"mcpServers": {
"domain-intelligence": {
"serverUrl": "https://oti-labs.com/mcp"
}
}
}
// claude_desktop_config.json (uses mcp-remote)
{
"mcpServers": {
"domain-intelligence": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://oti-labs.com/mcp"]
}
}
}
After 1,000 keyless lookups in a month, add a free RapidAPI key as an X-RapidAPI-Key header for 1,000 more (or Authorization: Bearer). Listed in the official MCP Registry as com.oti-labs/domain-intelligence.
Tools
All read-only. Results are JSON, with long lists trimmed so one big domain doesn't fill the model's context.
domain_lookup
Everything below in one call. Use it to triage a suspicious domain or profile a company.
whois_lookup
Registrar, created, updated and expiry dates, nameservers and status. RDAP first, port-43 WHOIS fallback.
dns_records
A, AAAA, MX, TXT, NS, CAA and SOA records.
ssl_certificate
Live TLS handshake: issuer, validity dates, days until expiry, SANs and signature algorithm.
subdomains
Live hosts with their IPs, every name found (live first) and collapsed infrastructure pools.
email_security
SPF and DMARC records, and DKIM keys found on about 29 common selectors.
Things to ask
Domain age
"How old is example.com and who is the registrar?"
Phishing triage
"Is this domain suspicious? Check its age, SSL issuer and SPF/DMARC."
Attack surface
"List the live subdomains of example.com with their IPs."
Certificate expiry
"When do the SSL certificates for these 10 domains expire?"
Need more than 1,000 a month?
A free RapidAPI key adds 1,000 lookups a month, no card. PRO is $9.99/mo for 50,000.