Datacircle

Facts402 pricing: phone validation API

Facts402's siteThis page as plain textPhone validation API: the best of 50+ providers comparedFacts402: phone validation API alternatives

Is Facts402 yours? Write to us about this page. We invite selected tool providers to our WhatsApp group.

67% complete: 6 of the 9 fields on our checklistSee the 9 fields
$10.00per 1,000 phonesWe haven't run Facts402 through our phone validation API benchmark yet.We rank 1,283 plans for phone validation APIs by price. Half the plans cost $3.60 or less per 1,000 phones. This plan costs less per 1,000 phones than 24% of the 1,283 plans.GuGuData's CNY 124 (about $19) monthly plan is the cheapest paid plan per 1,000 phones. GuGuData's CNY 124 (about $19) monthly plan charges nothing per call. You get as many phones as GuGuData's rate limit allows. Neutrino API's On-Demand plan costs the least for 10,000 phones a month: $0.80.Trestle, Data247 and Abstract API are the best phone validation API providers in the Datacircle benchmark.
Type a number to see the cheapest Facts402 plan for that many phones. The table below then sorts the other plans by what each costs.
Plan: x402 pay per call Facts402's only plan
Call: POST /phone Facts402's only call for this API
API: Phone validation API one of Facts402's 4 APIs

About this item

  • Stored. Facts402 may answer from Facts402's stored data instead of asking the carrier. Facts402 doesn't say how old the data is.
  • 6 of the 9 fields on our checklist. Number, Formats, Validity, Type, Carrier, Place.
  • Nothing to buy first. You pay per call.
  • One call. You send number to POST /phone. You can also send default_region. The call returns whether the number is valid.
  • Who can get it: anyone with a wallet paying USDC on Base (x402 v2), with no account or API key. Keep data: no API terms. Use data: no API terms.

Facts402: phone validation API alternatives

Facts402 alternatives: other phone validation API providers by price

We list other providers' plans closest to this plan in price per 1,000 phones. Each plan in the table gives stored data.

This planFacts402, pay as you goProWebLook, $4.99 packXverify, $5 packYepAPI, top-upRinger (Telique), top-up from $10, Paid, GET /v1/telique/lrn/{phone_number}
$ per 1,000 phones$10.00$9.98$10.00$10.00$10.00
Completeness67%67%44%44%33%
Billingpay as you gopay firstpay firstpay firstpay first
Payper call$4.99$5any amount$10
Enough foras many as you pay for500 calls500 callsas many as you pay foras many as you pay for
Freshnessstoredstoredstoredstoredstored
Who can get itanyone with a wallet paying USDC on Base (x402 v2), with no account or API keyanyoneanyoneanyoneanyone with an account who adds a payment method and funds

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.

  1. api.facts402.com/
  2. api.facts402.com/.well-known/x402
  3. api.facts402.com/llms.txt
  4. api.facts402.com/openapi.json

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 phones$10.00
Percall
Billingpay as you go
Aggregators
Aggregatorsnone
Charges
Also pays fornothing else
Not found
$ per 1,000$0.00
In their words
Their pitchUse when an agent needs phone number validation for CRM, KYC or calling: valid/possible, E.164 and national formats, country, type (mobile, fixed line, toll-free, VoIP...), original carrier, location and time zones, for any number worldwide. Offline, instant.
Data
Freshnessstored
CountriesWorldwide
What it checksnumbering plan
Keep datano API terms
Use datano API terms
Plan
Payper call
Rate limit
Batch1
Speed
Answerin the call
The call
You sendnumber. Optional: default_region
MethodPOST
Path/phone
About the plan
Planx402 pay per call
Who can get itanyone with a wallet paying USDC on Base (x402 v2), with no account or API key
The 13 fields the plan's answer can hold

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

Best GTM APIs