Kaidn Phone validation API pricing
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67% complete: 6 of the 9 fields on our checklistSee the 9 fields
$0.00per 1,000 phonesWe ran Kaidn in our phone validation API benchmark. We didn't score any Kaidn plan.This plan is free. We rank 1,494 plans for phone validation APIs by price. Half the plans cost $3.20 or less per 1,000 phones. 326 phone validation API plans on our price sheet are free. Trestle has a free plan with 25 calls in total. Trestle is the best phone validation API in our benchmark.Linq's $260 monthly plan is the cheapest paid plan per 1,000 phones. Linq's phone validation API costs nothing beyond the plan price. Keyronne's pay-as-you-go plan costs the least for 10,000 phones a month: $0.20.Trestle, Signal House and Data247 are the best phone validation API providers in the Datacircle benchmark.
Plan: Free one of Kaidn's 5 plans
- FreeFree$0.00 per 1,000
- $39 monthlyBasic$0.78 per 1,000
- $99 monthlyStarter$0.396 per 1,000
- $299 monthlyGrowth$0.299 per 1,000
- Contact usEnterprise
Call:
POST / Kaidn's only call for this APIAPI: Phone validation API one of Kaidn's 2 APIs
About this item
- Freshness. We don't know how fresh this plan's data is.
- 6 of the 9 fields on our checklist. Formats, Validity, Type, Carrier, Place, Risk.
- Nothing to pay. You get 10,000 requests a month.
- One call. You send
phonetoPOST /. You can also sendv1/ check/ phone country. The call returns whether the number is valid. - Anyone can get it. Keep data: no limit. Use data: with conditions.
Kaidn: phone validation API alternatives
Kaidn alternatives: other phone validation API providers by price
The table starts with Kaidn's cheapest paid plan. Next come plans from other providers with the price per 1,000 phones closest to Kaidn's.
| Kaidn, $299 monthly | Ihuyi, CNY 10,000 pack | TCPA Litigator List, $2,999 monthly, API Titan, POST /scrub/phones/ | Dev.me, $300 monthly | NumDetect, $19.90 pack, Basic, POST /api/v1/bulk-jobs, Bulk check, Telegram | |
|---|---|---|---|---|---|
| $ per 1,000 phones | $0.299 | $0.299 | $0.30 | $0.30 | $0.30 |
| Completeness | 67% | 22% | 33% | 67% | 11% |
| Billing | monthly | pay first | monthly | monthly | pay first |
| Pay | $299 | CNY 10,000 | $2,999 | $300 | $19.90 |
| Enough for | 1,000,000 calls a month | 5,000,000 results | 10,000,000 results a month | 1,000,000 calls a month | about 66,333 results |
| Freshness | unknown | unknown | stored | unknown | live |
| Who can get it | anyone | anyone who registers an account, passes its enterprise real-name verification (企业实名认证) and signs a cooperation agreement (签订合作协议) to buy a pack | anyone, the terms ask a client to hold access to the DNC Registry for each area code before scrubbing numbers in it, on a 12-month agreement (contact us) | anyone | anyone who signs up, no approval step |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-11.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Number, not in the answer
- Formats
- Validity
- Type
- Carrier
- Porting and roaming, not in the answer
- Place
- Risk
- Owner, not in the answer
| $ per 1,000 phones | $0.00 |
|---|---|
| Per | call |
| Billing | free |
| Aggregators | none |
|---|
| Also pays for | from the same budget: Check an email address · Check an IP address · Score an event · Score many events at once |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | Paste a number in international format to see its line type, carrier and country, and whether it is VOIP or a known disposable service. |
|---|
| What it checks | numbering plan |
|---|---|
| Keep data | no limit |
| Use data | You agree not to, and not to permit any third party to: use the Service unlawfully, or in violation of any applicable law, regulation, sanctions regime or third-party right, submit data you do not have a lawful basis and the necessary rights, consents or notices to submit and have processed (see section 7), use the Service as the sole or automated basis for a decision that produces legal or similarly significant effects on an individual, or to unlawfully discriminate against any person or group, including on the basis of a protected characteristic, use the Service for credit scoring, employment, insurance, housing, or any use regulated as a consumer report or background-screening service, unless you have separately arranged this with us in writing, attempt to reverse engineer, resell, sublicense, or build a competing risk-scoring product from the Service or its outputs, probe, scan, overload, circumvent rate limits, or interfere with the integrity or performance of the Service, upload malware, or use the Service to harass, defame, or harm others. |
| Pay | $0 |
|---|---|
| You get | 10,000 requests a month |
| Enough for | 10,000 calls a month |
| Per second | 4 |
|---|---|
| Batch | 1 |
| Answer | in the call |
|---|
| You send | phone. Optional: country |
|---|---|
| Method | POST |
| Path | /v1/check/phone |
| Plan | Free |
|---|---|
| Who can get it | anyone |
The 13 fields the plan's answer can hold
fraud score, valid, VoIP, disposable, line type, country, carrier, formatted number, recent abuse, network risk, network operators, honeypot hits, summary