SerwerSMS pricing: phone validation API, POST /
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44% complete: 4 of the 9 key fields we checkSee the 9 fields
$0.00per 1,000 phonesWe haven't run SerwerSMS through our phone validation API benchmark yet.This plan is free. We rank 888 plans for phone validation APIs by price. Half the plans cost $3.376 per 1,000 phones or less.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, Foxentry and HLR Lookups are the best phone validation API providers in the Datacircle benchmark.
Plan: Free trial one of SerwerSMS's 7 plans
- Free trialFree trial$0.00 per 1,000
- Top-up from PLN 50, PrepaidPrepaid$12.876 per 1,000
- PLN 49 monthly, LiteLite$12.876 per 1,000
- PLN 99 monthly, StandardStandard$12.876 per 1,000
- PLN 199 monthly, GrowthGrowth$12.876 per 1,000
- PLN 299 monthly, ProPro$12.876 per 1,000
- Contact us, Individual packageIndividual package
Call:
POST / one of SerwerSMS's 3 callsPOST /Free trial$0.00 per 1,000phones/ check POST /Free trial$0.00 per 1,000phones/ lookup POST /Free trial$0.00 per 1,000phones/ nat
API: Phone validation API SerwerSMS's only API
About this item
- Live. SerwerSMS checks the phone number you send when you call the API.
- 4 of the 9 key fields we check. Number, Validity, Carrier, Porting and roaming.
- Nothing to pay.
- One call. You send
phonetoPOST /. You can also sendphones/ check idandurl. The call returns the answer when the provider is quick. When the provider is slow, the call returns a job. You fetch the answer once the job is done. - Who can get it: entrepreneurs: its terms define a Subscriber as an entrepreneur. Keep data: no limit. Use data: with conditions.
SerwerSMS: phone validation API alternatives
SerwerSMS alternatives: every phone validation API provider ranked
The table starts with SerwerSMS's cheapest paid plan. Next come plans from other providers with the price per 1,000 phones closest to SerwerSMS's. Each plan in the table gives live data.
| SerwerSMS, top-up from PLN 50, Prepaid, POST /phones/check | ProWebLook, $76.70 yearly, WhatsApp Annual 500, GET /wavalidation | Veriphone, $12.99 monthly, Starter, GET /v3/verify, /v3/verify, full | SignalWire, top-up from $5, Prepaid balance, GET /api/relay/rest/lookup/phone_number/{e164_number}, Look up phone number, full | Verify550, $650 pack, 500,000 Credits, POST /api/bulkPhoneList | |
|---|---|---|---|---|---|
| $ per 1,000 phones | $12.876 | $12.783 | $12.99 | $13.00 | $13.00 |
| Completeness | 44% | 67% | 78% | 67% | 56% |
| Billing | pay first | yearly | monthly | pay first | pay first |
| Pay | PLN 50 | $76.70 | $12.99 | $5 | $650 |
| Enough for | as many as you pay for | 500 calls a month | 1,000 calls a month | about 384 calls | 50,000 results |
| Freshness | live | live | live | live | live |
| Who can get it | entrepreneurs: its terms define a Subscriber as an entrepreneur | anyone | anyone | anyone with a SignalWire space and a payment method, new accounts stay in Trial mode until at least $5 of credit is added | 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 2026-11-04.
- dev.serwersms.pl/en/https-api-v2/hlr-checking-the-availability-of-the-number
- dev.serwersms.pl/https-api-v2
- dev.serwersms.pl/https-api-v2/autoryzacja
- dev.serwersms.pl/https-api-v2/hlr-zaawansowany-sprawdzanie-dostepnosci-numeru
- docs.serwersms.pl/SerwerSMS_term_of_use.pdf
- en.serwersms.pl/pricing
- en.serwersms.pl/services/checking-numbers
- serwersms.pl/cennik/cennik-pre-paid
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Number
- Formats, not in the answer
- Validity
- Type, not in the answer
- Carrier
- Porting and roaming
- Place, not in the answer
- Risk, not in the answer
- Owner, not in the answer
| $ per 1,000 phones | $0.00 |
|---|---|
| Billing | free |
| Aggregators | none |
|---|
| Also pays for | Sending SMS messages with the same content: 100 free messages |
|---|
| $ per 1,000 | $0.00 |
|---|
| Their pitch | Enhanced access to the registry through which you can verify current membership and availability of number in network. |
|---|
| Freshness | live |
|---|---|
| Countries | Worldwide |
| What it checks | numbering plan, carrier, line in service |
| Keep data | no limit |
| Use data | Subscriber shall not be entitled irrespective of the technical means used to enable third parties to use Serwer SMS or to use Serwer SMS for third parties needs in any other way than described in the paragraph 2. [...] It is forbidden to share account to third parties, unless the Account is used by an authorized employee or associate of the Subscriber. |
| Pay | $0 |
|---|---|
| Expires | 14 days |
| Batch | 50,000 |
|---|
| Answer | in the call or by polling |
|---|
| You send | phone. Optional: id, url |
|---|---|
| Method | POST |
| Path | /phones/check |
| Plan | Free trial |
|---|---|
| Who can get it | entrepreneurs: its terms define a Subscriber as an entrepreneur |
The 7 fields the plan's answer can hold
phone number, status, IMSI, original network, ported, current network, status description