What is the cheapest phone number validation API per lookup?
1Lookup charges $0.00495 a lookup for phone validation on the Starter plan and $0.002 on Enterprise, and that one price returns the line type, the carrier the number is on today, porting status and a risk level. Twilio Lookup charges $0.008 a request for line type alone, which is 62% more than 1Lookup's Starter price, and Veriphone charges 10 credits for the carrier a number is on today.
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These are the prices we read from each vendor's own page in October 2026.
- 1Lookup: $0.00495 a lookup on Starter ($99 for 20,000 checks), $0.00352 on Growth, $0.0032 on Professional and $0.002 on Enterprise.
- Veriphone: $0.0013 a lookup ($12.99 a month for 10,000 checks), with the carrier a number is on today costing 10 credits.
- Numverify: $0.003 a lookup ($14.99 a month for 5,000 checks).
- Abstract API: $0.0038 a lookup ($19 a month for 5,000 checks).
- Twilio Lookup: $0.008 a request for line type, with no plan.
Work out your own monthly cost with our free phone validation cost calculator.
To see what each check returns, see the phone validation API.
Every plan and its credits are on the pricing page.
These are the next questions buyers ask.
- How much does a phone validation lookup cost with 1Lookup?
- What is the best phone number validation API for a small business?
- What are the best Twilio Lookup alternatives for carrier and line type data?
See all the questions answered in the help section.