Abstract API pricing and alternatives: cached phone validation API

Abstract API's site llms.txt

89% complete: 8 of the 9 key fields we checkSee the 9 fields

$0.00per 1,000 phones

Plan: Free one of Abstract API's 15 plans

Call: GET /v1/ Abstract API's only call

GET /v1/Free$0.00 per 1,000

About this item

A copy at most 1 day old. Abstract API may skip the carrier and answer from data it keeps.
8 of the 9 key fields we check. Number, Formats, Validity, Type, Carrier, Place, Risk, Owner.
Nothing to pay. You get 100 requests a month.
One call. You send phone to GET /v1/. You can also send country. The call returns whether the number is valid.
Who can get it: anyone 18 or older. Keep data: with conditions. Use data: with conditions.

Abstract API: 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 live data or data at most a day old, like this plan.

	This planAbstract API, free	RealValidito, free
$ per 1,000	$0.00	$0.00
Completeness	89%	67%
Billing	free	free
Pay	$0	$0
Enough for	100 calls a month	1,000 results
Freshness	1 day	1 day
Who can get it	anyone 18 or older	anyone

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.

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
Owner

Price
$ per 1,000	$0.00
Billing	free

Aggregators
Aggregators	Orthogonal: paid $5.00

Charges
Repeat free	never
Per	call
Also pays for	nothing else

Not found
$ per 1,000	$0.00

In their words
Their pitch	Check any phone number in real time. The Phone Validation API tells you if a number is real, which carrier and line type it uses, and where it's registered.

Data
Freshness	1 day
Keep data	no limit, but no collection, database or directory compiled from it without Abstract's written permission
Use data	You may not access or use the Site for any purpose other than that for which we make the Site available. Without limiting the foregoing, you agree not to: [...] 3. Use the Site or the Content to advertise or offer to sell goods and services or to identify any household, street address, or individual. 4. License, sell, resell, lease, distribute, or otherwise commercially exploit as a standalone product, or make available to any third party, the Site, or any Content not owned by you (unless the Content is expressly licensed to you for such purpose). [...] 13. Use the Site or the Content to spam, phish, pharm, pretext, spider, crawl, or scrape. [...] 17. Use the Site or the Content for any illegal or unauthorized purpose. 18. Use the Site or the Content: for any form of debt collection, as the sole source of data for hard background check purposes, to determine eligibility for a government license or benefit, for any purpose prohibited by applicable data privacy and security laws, for the benefit of any one political candidate, political party, political campaign, or political advocacy group affiliated exclusively with or formed to benefit any one of the foregoing, [...] in connection with any purpose covered by the Fair Credit Reporting Act (15 U.S.C. Sec. 1681 et seq (“FCRA”)) [...], for the preparation of a Consumer Report or in such a manner that may cause such data to be characterized as a Consumer Report, in connection with establishing a consumer’s eligibility for credit or insurance to be used primarily for personal, family, or household purposes [...], for the purpose of evaluating a consumer for employment, promotion, reassignment, or retention as an employee, for any tenancy verification or in connection with any application to rent real property, [...] for any other purpose under the FCRA.

Plan
Pay	$0
You get	100 requests a month
Enough for	100 calls a month

Rate limit
Batch	1

Speed
Median	0.05 s

The call
You send	phone. Optional: country
Method	GET
Path	/v1/

About the plan
Plan	Free
Who can get it	anyone 18 or older

The 29 fields the plan's answer can hold

phone number, international format, local format, carrier, line type, mobile country code, mobile network code, country, country code, country calling code, region, city, time zone, valid, line status, VoIP, minimum number age, SMS domain, SMS email, caller name, caller type, risk level, disposable, abuse detected, breach count, first breach date, last breach date, breached domain, breach date