Validate phone numbers and emails in Make with the verified 1Lookup app
1Lookup has a verified app on Make with 18 modules. Add a 1Lookup module to any scenario, create a connection with your API key, and it validates phone numbers and emails, runs HLR, MNP and line type lookups, checks spam and do-not-call status, and looks up IP addresses. Results map straight into the next module.
No HTTP module is needed because 1Lookup has its own Make app
Make reviewed the 1Lookup app and lists it as verified in its app directory. You pick a module from the 1Lookup app, connect once with your API key, and map fields like any other app.
Each module returns structured fields such as valid, line type, carrier, ported status, deliverability and risk. A router or filter after it sends good and bad records down different paths.
What you can do
Phone validation and carrier data
Validate a phone number, run an HLR lookup for live network status, an MNP lookup for ported numbers, or a line type lookup.
Spam and do-not-call checks
Check a phone number for spam and scrub it for do-not-call status before your scenario sends it to a dialer or SMS tool.
Email validation and enrichment
Validate an email address, find a work email from a name and company domain, or look up a contact from an email.
Any endpoint through one connection
The Make an API call module reaches any 1Lookup endpoint with the same connection, for anything the other modules do not cover.
The 1Lookup app gives Make 18 modules
Validate a phone number
Validates a phone number and returns carrier information.
Perform an HLR lookup
Runs a real-time HLR lookup for connectivity, roaming and carrier details.
Perform an MNP lookup
Checks number portability and returns the current or original carrier.
Look up a phone number type
Classifies a number as mobile, landline, VoIP or another type.
Check a phone number for spam
Checks whether a number is linked to spam or abuse signals.
Scrub a phone number
Validates, classifies and checks do-not-call status for a number.
Perform a reverse phone lookup
Looks up contact information from a phone number.
Find a mobile phone number
Finds a mobile number from a profile URL, work email or personal email.
Append a phone number
Finds a phone number from contact identity fields.
Validate an email address
Validates an email address and checks deliverability.
Find a work email address
Finds a work email from a person's name and company domain.
Append an email address
Finds an email address from contact identity fields.
Perform a reverse email lookup
Looks up contact information from an email address.
Look up an IP address
Returns IP intelligence and risk signals.
Perform a reverse IP lookup
Looks up contact or enrichment data linked to an IP address.
Analyze a domain's SEO
Returns domain authority, backlink and traffic signals.
Look up search intent
Returns web search results, related questions and related searches for a query.
Make an API call
Calls any 1Lookup API endpoint with your existing connection.
How to add 1Lookup to a Make scenario
Start your free 1Lookup trial and copy your API key
Sign up at app.1lookup.io and start the 7-day free trial. Then open API Keys in the dashboard and copy your key. You paste it once into the connection and every workflow reuses it.
Add a 1Lookup module
In your scenario, click the plus, search for 1Lookup and choose a module, for example Validate a phone number.
Create the connection with your API key
Click Add next to Connection, paste your 1Lookup API key and save. Make reuses the connection in every scenario.
Map the field, run once, then route on the result
Map the phone or email from the previous module, click Run once to see the output, then add a router or filter on fields such as valid or line type.
1Lookup also has its own apps on Zapier and n8n.
Each one is a native 1Lookup app: search for 1Lookup, paste your API key once, and add a lookup step to any workflow.
Use cases
Check every new lead from an ad form
Watch new leads, then Validate a phone number, then a router: valid mobiles go to your CRM, the rest to a review sheet.
Scrub numbers before an outbound campaign
Iterate over a list, then Scrub a phone number, then a filter that drops do-not-call and spam-flagged numbers before upload.
Find work emails for new accounts
New company in your CRM, then Find a work email address from the contact's name and domain, then Validate an email address.
Flag risky signups by IP
New signup webhook, then Look up an IP address, then alert a channel when the IP shows proxy, VPN or high risk.
Frequently asked questions
Is the 1Lookup app on Make verified?
Yes. Make reviewed the 1Lookup app and lists it as verified in its app directory, so you can add it from any scenario without installing anything.
How many modules does the 1Lookup Make app have?
Eighteen, covering phone validation, HLR, MNP and line type lookups, spam and do-not-call checks, email validation and enrichment, IP lookups, domain SEO data, search intent and a Make an API call module.
What does it cost to use 1Lookup in Make?
The app is free to add. Each module run uses 1Lookup credits from your plan, the same as an API call, and counts as usage on your Make plan.
Do I still need the HTTP module?
No. The 1Lookup modules handle authentication and return mapped fields. Use Make an API call only for an endpoint without its own module.