1Lookup
Claude connectorCommunityCheck phone numbers, email addresses and IP addresses from Claude: real or fake, line type and carrier, deliverable or not, proxy or VPN, p…
1Lookup checks contact data so you can trust it before you call, email, or let someone sign up.
With this connector, Claude can:
- Validate a phone number: whether it is real and active, mobile or landline, the carrier, Do Not Call status, and a risk level.
- Verify an email address: whether it exists and can receive mail, and whether it is disposable, role-based, or risky.
- Look up an IP address: location, connection type, proxy, VPN, Tor and data-center flags, public blocklist hits, and a risk score.
- Check up to 50 phones, emails, or IPs in one go.
- Show your plan and remaining credits.
Lookups use the same credits as the 1Lookup API: one credit per check. Checking your plan and credits is free. Nothing in your 1Lookup account is changed or deleted.
Sign in with your 1Lookup account and press Approve. No API key to copy. Disconnect any time from Claude's connector settings.
Needs a paid 1Lookup plan. Every plan starts with a 7-day free trial.
1Lookup is #6,956 of 11,065 Claude connectors by popularity.
- Tools
- 6
exposed by this connector
Movement
From our daily snapshots over the last 30 days.
Rank by popularity
Rank by trending score
Popularity score
Trending score
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Data analytics2,740th of 3,994 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 2738 | 3,700 | — | 451places down | |
| 2739 | 3,700 | — | 451places down | |
| 2740 | 3,585 | — | — | |
| 2741 |  Ad Radar | 3,585 | — | 599places down |
| 2742 |  Adzviser CallRail | 3,585 | — | 719places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Hevy | 4,611,167 | 11,443 #301 | 2places down |
| 2 | 4,214,705 | 9,604 #577 | — | |
| 3 |  Adspirer Retail Media Ads | 684,184 | 10,578 #414 | 2places down |
| 4 | 632,495 | 9,778 #546 | 6places up | |
| 5 | 531,611 | 15,746 #38 | 66places up |
Tools
- bulk_verify
- confirm_connection
- get_account
- ip_lookup
- validate_phone
- verify_email
- Categories
- Made by
- 1Lookup Inc. · Website
- Sign-in
- Required
- Connector URL
- https://app.1lookup.io/api/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- November 11, 2026
- More info
- Sponsorship
- Promote this connector