MCP.Market

LookupLab MCP server

online · 100% uptime
by PpiNeaPpLe·io.github.PpiNeaPpLe/lookuplab·v1.0.0
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Phone carrier, email domain, IP network and DNS checks using your LookupLab account.

A88/100grade A
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Safety scan
A88/100

full report

Adoption
Growing

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

LookupLab tools (4, 1 write)

write = sends, deletes, buys or posts
  • dns_checkFree

    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_verifywrite actionFree

    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.

  • ip_lookupFree

    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_lookupFree

    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.

Public scan report

scanner v0.1.10 · 2026-10-13 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 558ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 88/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How LookupLab compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
88/100
higher than 82% of 916 Email servers
Tools
4
the typical Email server has 7
Tools that change things
25%
typical: 25%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote Email server answers 100%
Response time
208 ms
faster than 64% of 609 Email servers

What its tools let an agent do: 3 read · 1 send or post

Install LookupLab in Claude Code, Cursor or VS Code

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

What the publisher says

From the LookupLab repository's README, as published. We do not edit it. Read it on GitHub

LookupLab integrations

Phone carrier, email-domain, IP-network and DNS checks through LookupLab.

Find LookupLab on Smithery and in the official MCP Registry.

Claude web and Desktop

  1. Open Customize > Connectors > Add custom connector. Name it LookupLab and use https://lookuplab.io/api/mcp.
  2. Choose Sign in now and Register automatically if Claude shows authentication options. Leave a custom client ID and secret blank.
  3. On LookupLab's consent page, enter your LookupLab key and approve. Enable the connector in your chat. Try: "Check the mail records for example.com."

Your key goes only to LookupLab; Claude receives a revocable OAuth connection. On Team and Enterprise plans, an owner first adds the connector, then each member connects their account. See Claude's connector setup.

Claude Code

Set LOOKUPLABAPIKEY privately in your environment, then merge claude-code.mcp.json into your project's .mcp.json. Start Claude Code in that project, approve LookupLab when prompted, and check /mcp. Keep the variable reference in the file; never replace it with a real key in a shared repository.

The config uses Claude Code's HTTP transport and environment expansion. Try: "Check the mail records for example.com."

Gemini CLI

Install with gemini extensions install https://github.com/PpiNeaPpLe/lookuplab-integrations. Supply your existing LookupLab API key in the extension's sensitive setting. Gemini stores this setting in its system keychain when available. Never put a key in a chat message.

Other MCP clients

Connect to https://lookuplab.io/api/mcp with Authorization: Bearer YOURAPIKEY or X-API-Key: YOURAPIKEY in the client's secure connection settings. The server uses Streamable HTTP with JSON responses and no SSE stream.

ChatGPT and Codex

The openai/ directory is the portable plugin package. OAuth needs an exact callback registered by LookupLab before the platform connection can run. This source package is not a claim of directory approval or publication.

Tools and costs

The account needs enough balance for the maximum charge before the lookup runs. Failed/invalid results are not charged. Tools debit credits, so they are marked as operations with side effects. Duplicate calls may charge again unless your client sends a stable Idempotency-Key header for retries.

Data is not proof of a person's identity, ownership, consent to contact, guaranteed email delivery or precise location. Privacy flags can be unavailable. Supply only data you are authorized to check.

Privacy · Terms · Support

Nothing above is checked by us. What we check is on the safety report.

LookupLab: common questions

Is LookupLab MCP server safe?
Yes, by our scan: it is graded A (88/100). Read the LookupLab safety report
How do I install LookupLab?
It runs remotely at lookuplab.io. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does LookupLab need an API key?
Yes. The registry entry asks for X-API-Key.
Is LookupLab maintained?
The last commit was 23 days ago (2026-10-12). The latest release is v1.0.0.
Is LookupLab up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of LookupLab?
Servers from other publishers that do the same job: Forward Email MCP server, Mailkite MCP server and IntoDNS.ai DNS & Email Security Scanner MCP server.
How does LookupLab compare with other Email MCP servers?
safety score 88/100 (higher than 82% of 916 Email servers); tools 4 (the typical Email server has 7); tools that change things 25% (typical: 25%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to LookupLab

Same job from other publishers: the closest match first, then the best rated.

  • Forward Email
    Privacy-focused email: domains, DNS verification, aliases, SMTP sending, mailboxes and calendars.
    A
  • Mailkite
    Send email, manage domains, DNS, webhooks, templates, and inbound routing on MailKite
    A
  • IntoDNS.ai DNS & Email Security Scanner
    DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.
    B
  • Palmyr
    Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.
    B
  • OpenOSINT
    AI-powered OSINT agent & MCP server. 21 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.
    C