NumDetect Phone validation API pricing: POST /
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22% complete: 2 of the 9 fields on our checklistSee the 9 fields
$1.00per 1,000 phonesWe haven't run NumDetect through our phone validation API benchmark yet.We rank 1,494 plans for phone validation APIs by price. Half the plans cost $3.20 or less per 1,000 phones. This plan costs less per 1,000 phones than 66% of the 1,494 plans.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: Basic one of NumDetect's 4 plans
- $19.90 pack, BasicBasic$1.00 per 1,000
- $69.90 pack, PlusPlus$0.946 per 1,000
- $199.90 pack, ProfessionalProfessional$0.909 per 1,000
- $499.90 pack, ScaleScale$0.833 per 1,000
Call:
POST /, Single check, Zalo one of NumDetect's 10 callsPOST /, Bulk check, Telegram$19.90 pack, Basic$0.30 per 1,000api/ v1/ bulk-jobs POST /, Bulk check, Viber$19.90 pack, Basic$0.15 per 1,000api/ v1/ bulk-jobs POST /, Bulk check, WhatsApp$19.90 pack, Basic$0.25 per 1,000api/ v1/ bulk-jobs POST /, Bulk check, WhatsApp Business$19.90 pack, Basic$0.30 per 1,000api/ v1/ bulk-jobs POST /, Bulk check, Zalo$19.90 pack, Basic$0.50 per 1,000api/ v1/ bulk-jobs POST /, Single check, Telegram$19.90 pack, Basic$1.00 per 1,000api/ v1/ checks POST /, Single check, Viber$19.90 pack, Basic$0.50 per 1,000api/ v1/ checks POST /, Single check, WhatsApp$19.90 pack, Basic$4.00 per 1,000api/ v1/ checks POST /, Single check, WhatsApp Business$19.90 pack, Basic$4.00 per 1,000api/ v1/ checks POST /, Single check, Zalo$19.90 pack, Basic$1.00 per 1,000api/ v1/ checks
API: Phone validation API NumDetect's only API
About this item
- Live. NumDetect checks the phone number you send when you call the API.
- 2 of the 9 fields on our checklist. Validity, Place.
- A single purchase. You pay $19.90 for $19.90 of credit, enough for 19,900 calls. Calls stop once your credit runs out.
- One call. You send
phoneand theIdempotency-Keyheader toPOST /. You setapi/ v1/ checks productsto "zalo" and theContent-Typeheader to "application/json". You can also sendcountry. The call returns whether the number is valid. - Who can get it: anyone who signs up, no approval step. Keep data: no limit. Use data: with conditions.
NumDetect: phone validation API alternatives
NumDetect 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 live data.
| This planNumDetect, $19.90 pack, Basic, POST /api/v1/checks, Single check, Zalo | WA Validator, $29.99 pack, Basic, POST /api/v1/validate/ | CallerAPI, $12,000 monthly, Enterprise transparency $12,000, GET /api/network-lookup/{phone} | apipick, $5 pack, 5,000 credits, POST /api/check-phone-telegram | CheckThatPhone, $100 monthly | |
|---|---|---|---|---|---|
| $ per 1,000 phones | $1.00 | $0.9997 | $1.00 | $1.00 | $1.00 |
| Completeness | 22% | 11% | 44% | 0% | 78% |
| Billing | pay first | pay first | monthly | pay first | monthly |
| Pay | $19.90 | $29.99 | $12,000 | $5 | $100 |
| Enough for | 19,900 calls | 30,000 calls | 12,000,000 calls a month | 5,000 calls | 100,000 calls a month |
| Freshness | live | live | live | live | live (deactivation date, state DNC: 7 days) |
| Who can get it | anyone who signs up, no approval step | anyone | anyone who agrees terms with CallerAPI sales ("Exact terms are set in your agreement") | anyone | 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 2026-11-12.
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, not in the answer
- Validity
- Type, not in the answer
- Carrier, not in the answer
- Porting and roaming, not in the answer
- Place
- Risk, not in the answer
- Owner, not in the answer
| $ per 1,000 phones | $1.00 |
|---|---|
| Per | call |
| Billing | pay first |
| Aggregators | none |
|---|
| Also pays for | from the same budget: Bulk check |
|---|
| Units cap | hard |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | See which apps a phone number uses before you reach out. |
|---|
| Freshness | live |
|---|---|
| What it checks | messaging apps |
| Keep data | no limit |
| Use data | Do not share access in a way that bypasses service limits. [...] Use only data you are entitled to process. Do not use the service for spam, harassment, unlawful surveillance, unauthorized access or attempts to bypass safeguards. Registration and Business signals do not prove identity, ownership, consent, recent activity or guaranteed message delivery. Do not treat unknown as a negative answer or use a signal as the sole basis for a decision with significant effects on a person. |
| Pay | $19.90 |
|---|---|
| You get | $19.90 |
| Enough for | 19,900 calls |
| Batch | 1 |
|---|
| Answer | in the call |
|---|
| You send | phone, products "zalo", Content-Type header "application/json", Idempotency-Key header. Optional: country |
|---|---|
| Method | POST |
| Path | /api/v1/checks |
| Plan | Basic |
|---|---|
| Who can get it | anyone who signs up, no approval step |
The 11 fields the plan's answer can hold
check ID, input type, input, country, amount charged, product ID, status, registered, product price, product amount charged, extra info