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CallerAPI pricing and alternatives: cached phone validation API

CallerAPI's sitellms.txtBest phone validation API in 2026
78% complete: 7 of the 9 key fields we checkSee the 9 fields
$0.00per 1,000 phonesThe cheapest of the 99 plans we rank by price is seven.io, free, at $0.00 per 1,000 phones.
Plan: Free trial one of CallerAPI's 13 plans
Call: GET /api/lookup/{phone} CallerAPI's only call for this API
API: Cached phone validation API one of CallerAPI's 2 APIs

About this item

  • Stored. CallerAPI may skip the carrier and answer from data it keeps. CallerAPI doesn't say how old the data is.
  • 7 of the 9 key fields we check. Number, Formats, Validity, Type, Carrier, Porting and roaming, Place.
  • Nothing to pay. You get 100 credits, enough for 100 calls.
  • One call. You send phone to GET /api/lookup/{phone}. You can also send hlr. The call returns whether the number is valid.
  • Who can get it: with conditions. Keep data: no limit. Use data: with conditions.

CallerAPI: cached phone validation API alternatives

The table starts with CallerAPI's cheapest paid plan. Next come plans from other providers with the price per 1,000 phones closest to CallerAPI's. Each plan in the table gives stored data.

CallerAPI, contact us, Enterprise transparency $25,000NumLookupAPI, $449.99 yearly, medium, GET /v1/validate/{number}Veriphone, $390 yearly, Professional, GET /v3/verify, /v3/verifyBigDataCloud, $799 yearly, Silver, GET /data/phone-number-validate-by-ipAPIVerve, $299.99 monthly
$ per 1,000 phones$0.714$0.577$0.65$0.666$0.75
Completeness78%67%78%56%78%
Billingcontactyearlyyearlyyearlymonthly
Pay$25,000$449.99$390$799$299.99
Enough for35,000,000 calls a month65,000 calls a month50,000 calls a month100,000 calls a month400,000 calls a month
Freshnessstoredstoredstoredstoredstored
Who can get itanyone who agrees terms with CallerAPI sales ("Exact terms are set in your agreement")anyoneanyoneanyone with an account, giving true and complete information about themselves, their business and their contact detailsanyone 13 or over (under 18 only with the permission of a parent or legal guardian)

Cached phone validation API pricing: plans compared

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-27.

  1. callerapi.com
  2. callerapi.com/carrier-lookup-api
  3. callerapi.com/cnam-lookup-api
  4. callerapi.com/llms.txt
  5. callerapi.com/lrn-lookup-api
  6. callerapi.com/pricing
  7. callerapi.com/robocall-scoring-api
  8. callerapi.com/terms-of-service
  9. docs.callerapi.com/announce-a-call-43957286e0.md
  10. docs.callerapi.com/balance-and-email-20033243e0.md
  11. docs.callerapi.com/limits-and-thresholds-2432315m0.md
  12. docs.callerapi.com/score-a-transcript-or-a-recording-43843796e0.md
  13. docs.callerapi.com/spam-score-hlr-19887237e0.md

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
  • Place
  • Risk, not in the answer
  • Owner, not in the answer
Price
$ per 1,000 phones$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: Carrier lookup API · Score a transcript or a recording · Announce a call
Not found
$ per 1,000$0.00
In their words
Their pitch/api/lookup is a spam score and caller reputation lookup: a 0 to 100 score, the complaints behind it, and the business name with a verified flag. Carrier and HLR data only come back when you add hlr=true. We are different from the other providers because we don’t just provide HLR, but also spam number lookup and business name lookup, all in one endpoint, for the same price.
Data
Freshnessstored
CountriesWorldwide
What it checkscarrier
Keep datano limit
Use data"You may not: Use the Service for any illegal purpose, Attempt to reverse engineer the Service, Share your API key or access credentials with third parties, Use the Service in a manner that could damage, disable, or impair our servers or networks" (Terms of Service 3), "You must obtain and maintain all necessary consents from individuals whose data you access or collect through the Service" (4), "a limited, non-exclusive, non-transferable license to use the Service in accordance with these Terms" (5)
Plan
Pay$0
You get100 credits
Enough for100 calls
Rate limit
Batch1
Speed
Answerin the call
The call
You sendphone. Optional: hlr
MethodGET
Path/api/lookup/{phone}
About the plan
PlanFree trial
Who can get itanyone can apply: "our AI scores your profile and decides to give it to you or not. Or maybe you'll need to jump on a call with us to discuss it further"
The 38 fields the plan's answer can hold

phone number, status, entity type, reputation, spam flag, spam score, total complaints, complaint created date, complaint violation date, complaint consumer state, complaint subject, complaint robocall flag, complaint comment, business name, business category, business industry, business city, business state, business country, business verified, country calling code, country ISO code, country name, carrier, carrier type, OCN, SPID, original carrier, original SPID, landline, mobile, local format, LRN, MSISDN, ported, ported date, line type, valid

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