LookupLab MCP Server

by ppineapple Your server? Claim it

answering

LookupLab is answering right now. Last checked 12 min ago. It exposes 4 tools. Last commit 14 Oct 2026.

Phone carrier, email domain, IP network and DNS checks using your LookupLab account.

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

223 ms

Response time

average over 24h

Stars

last commit 14 Oct 2026

Nothing serious here today

Today is the operative word: we check LookupLab every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add lookuplab --transport http https://lookuplab.io/api/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "lookuplab": {
      "url": "https://lookuplab.io/api/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.lookuplab]
url = "https://lookuplab.io/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "lookuplab": {
      "url": "https://lookuplab.io/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "lookuplab": {
      "url": "https://lookuplab.io/api/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

dns

dns_check

Inspect a user-provided domain's MX, SPF, DMARC or DKIM record and report issues. Does not change DNS. DKIM requires a selector. Uses 1 existing account credit for a successful check.

email_verify

Check an email address supplied by the user for syntax, MX records, disposable-domain and role-address indicators. Does not prove mailbox ownership or guarantee delivery. Uses 1 existing account credit for a successful check; does not send email.

lookup

ip_lookup

Look up approximate IP location and network/provider indicators for an IP address supplied by the user. IP location is not a person's precise location or identity; privacy flags may be unavailable. Uses 1 existing account credit for a successful check.

phone

phone_lookup

Check a user-provided phone number for carrier and line type. Optional US/CA caller-name data is a carrier listing, not identity verification. Uses existing account credits: 1 for landline/VoIP/toll-free, 3 for mobile or unknown; caller name adds 2. Reserves up to 5 credits before execution. Does not place calls or send messages.

Endpoints

URL	Transport	State	Latency	Checked
https://lookuplab.io/api/mcp	streamable-http	answering	206 ms	12 min ago

Alternatives to LookupLab

same job, measured the same way

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1Lookup

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SureCheck MCP

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Local stdio phone metadata and email syntax/DNS checks. Not live carrier or mailbox verification.

local only

VoIP.ms

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Manage phone numbers, SMS/MMS, voicemail, faxing, and call routing for your VoIP.ms account.

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by wraps

Send email through your own Amazon SES account, and check domains, suppressions and sandbox status.

50 installs/wk local only

Securessmtp

by securessmtp

Send email, manage sending domains, and read delivery analytics from your SecureSMTP account.

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JustEmails

by justemails

Email hosting from your AI: read and send mail, add domains, check DNS and manage mailboxes.

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Loops

by loops-so

Manage Loops contacts, mailing lists, campaigns, and transactional email from your Loops account.

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LookupLab — questions

Answers built from our own checks of this server.

What can LookupLab do?

It exposes 4 tools, read directly from the server on our last check. Among them: dns_check, email_verify, ip_lookup, phone_lookup. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is LookupLab working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 223 ms. The bar chart above shows every period we have measured.

How do I connect LookupLab?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does LookupLab need an API key?

No. LookupLab completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is LookupLab?

It answers our handshake in 223 ms on average, which is faster than 57% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is LookupLab open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.