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ContactLint pricing and alternatives: phone validation API

ContactLint's sitellms.txtBest phone validation API in 2026

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56% complete: 5 of the 9 key fields we checkSee the 9 fields
$0.00per 1,000 phonesWe rank 614 plans by price. Botoi's $199 monthly plan is the cheapest paid plan per 1,000 phones: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 phones a day.Data247, Abstract API and Listar are the best phone validation API providers in our benchmark.
Plan: Free one of ContactLint's 4 plans
Call: POST /v1/phone/validate ContactLint's only call for this API
API: Phone validation API one of ContactLint's 2 APIs

About this item

  • Stored. ContactLint may skip the carrier and answer from stored data. ContactLint doesn't say how old the data is.
  • 5 of the 9 key fields we check. Number, Formats, Validity, Type, Place.
  • Nothing to pay. You get 100 credits a month, enough for 100 calls. Unused free checks do not roll over.
  • One call. You send phone to POST /v1/phone/validate. You can also send country. The call returns whether the number is valid.
  • Who can get it: anyone with a non-disposable email address. Keep data: no limit. Use data: with conditions.

ContactLint: phone validation API alternatives

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

ContactLint, $99 packBigDataCloud, $9.95 monthly, Bronze, GET /data/phone-number-validateNumLookupAPI, $49.99 monthly, Pro, POST /v1/validateAPIVerve, $99.99 monthlyCallerAPI, $12,000 monthly, Enterprise transparency $12,000, GET /api/lookup/{phone}
$ per 1,000 phones$0.99$0.995$0.9998$0.9999$1.00
Completeness56%56%67%78%78%
Billingpay firstmonthlymonthlymonthlymonthly
Pay$99$9.95$49.99$99.99$12,000
Enough for100,000 calls10,000 calls a month50,000 results a month100,000 calls a month12,000,000 calls a month
Freshnessstoredstoredstoredstoredstored
Who can get itanyone with a non-disposable email addressanyone with an account, giving true and complete information about themselves, their business and their contact detailsanyoneanyone 13 or over (under 18 only with the permission of a parent or legal guardian)anyone who agrees terms with CallerAPI sales ("Exact terms are set in your agreement")

Every phone validation API provider we score, ranked

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. contactlint.com
  2. contactlint.com/docs
  3. contactlint.com/email-validation-api-pricing
  4. contactlint.com/openapi.json
  5. contactlint.com/phone-number-validation-api
  6. contactlint.com/privacy
  7. contactlint.com/terms

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, not in the answer
  • Porting and roaming, not in the answer
  • 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: Validate one email · Validate up to 50 emails in one request
Not found
$ per 1,000$0.00
In their words
Their pitchContactLint checks phone numbers over a simple HTTP API. You send a number and a country. You get back whether the number is valid, whether it is possible, its line type and region where the metadata supports them, and the number in E.164, national, and international formats.
Data
Freshnessstored
What it checksnumbering plan
Keep datano limit
Use dataYou own the data you send us and the results we return to you. [...] You agree not to: Use the Service to build lists for spam, or to check addresses or numbers you have no lawful reason to process. Try to get around rate limits, free-tier limits or signup limits (for example by creating many keys). Probe, overload or attack the Service, or resell raw access to the API without our written OK. Send data you are not allowed to share, such as sensitive data unrelated to contact validation. You are responsible for complying with laws that apply to you, including anti-spam, telemarketing, and data protection laws, when you use the results.
Plan
Pay$0
You get100 credits a month
Enough for100 calls a month
Expiresunused free checks do not roll over
Rate limit
Per second1
Batch1
Speed
Answerin the call
The call
You sendphone. Optional: country
MethodPOST
Path/v1/phone/validate
About the plan
PlanFree
Who can get itanyone with a non-disposable email address
The 14 fields the plan's answer can hold

phone number, parsed, valid, possible, line type, region, country calling code, E.164 number, national format, international format, billed as, free checks used this month, free check limit, credits remaining

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