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NumLookupAPI pricing and alternatives: cached phone validation API, POST /v1/validate

NumLookupAPI's sitellms.txt
67% complete: 6 of the 9 key fields we checkSee the 9 fields
$0.00per 1,000 phones
Plan: Free one of NumLookupAPI's 8 plans
Call: POST /v1/validate one of NumLookupAPI's 2 calls

About this item

  • Stored. NumLookupAPI may skip the carrier and answer from data it keeps. NumLookupAPI doesn't say how old the data is.
  • 6 of the 9 key fields we check. Number, Formats, Validity, Type, Carrier, Place.
  • Nothing to pay. You get 100 requests a month, enough for 100 results. Unused requests expire at the end of each month.
  • One call. You send numbers to POST /v1/validate. You can also send country_code. The call returns whether each number you send is valid.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

NumLookupAPI: cached phone validation API alternatives

We list other providers' plans closest to this plan in price per 1,000 phones. Each plan in the table gives stored data, not live data, like this plan.

This planNumLookupAPI, free, Free, POST /v1/validateNeutrino API, freeStrale, freeBotoi, freeTrestle, free
$ per 1,000$0.00$0.00$0.00$0.00$0.00
Completeness67%67%56%44%56%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough for100 results a monthnot publishednot published1,000 calls a day25 calls, once
Freshnessstoredstoredstoredstoredstored
Who can get itanyoneanyoneanyone who signs up, one trial credit per email addressanyone 18 or oldercompanies, with a business email address

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-18.

  1. api.numlookupapi.com/v1/agent/plans
  2. numlookupapi.com/
  3. numlookupapi.com/agents.md
  4. numlookupapi.com/docs/batch/
  5. numlookupapi.com/docs/openapi.yaml
  6. numlookupapi.com/docs/rate-limit/
  7. numlookupapi.com/docs/validate/
  8. numlookupapi.com/pricing/
  9. numlookupapi.com/products/hlr-lookup-api/
  10. numlookupapi.com/products/phone-validation-api/
  11. numlookupapi.com/terms-of-service/

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Number
  • Formats
  • Validity
  • Type
  • Carrier
  • Porting and roaming, not in the answer
  • Place
  • Risk, not in the answer
  • Owner, not in the answer
Price
$ per 1,000$0.00
Billingfree
Aggregators
Aggregatorsnone
Charges
Perresult
Also pays forfrom the same budget: Validate Phone Number
Not found
$ per 1,000$0.00
In their words
Their pitchSend a phone number in any format and get back whether it is valid, its E.164, national and international formats, its country, carrier and line type.
Data
Freshnessstored
Keep datano limit
Use dataThe Application and its services must be used lawfully and for their intended purposes [...] Users may not use content for purposes outside normal service usage. This includes prohibiting copying, sharing, editing, sublicensing, or selling content, unless explicitly allowed [...] Users may not reproduce or resell the service unless given prior written approval by the Owner.
Plan
Pay$0
You get100 requests a month
Enough for100 results a month
Expiresat the end of each month
Rate limit
Per second0.17
Batch100
The call
You sendnumbers. Optional: country_code
MethodPOST
Path/v1/validate
About the plan
PlanFree
Who can get itanyone
The 16 fields the plan's answer can hold

valid, phone number, local format, international format, country calling code, country code, country, location, carrier, line type, E.164 format, national format, RFC 3966 format, possible number, number type, time zone

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