numverify
Phone verification software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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$9.99 per month
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Free version
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What is numverify
numverify is an API-based phone number validation and lookup service used to check whether a phone number is valid and to retrieve basic metadata such as country, carrier, and line type. It is typically used by developers and data/CRM teams to validate user-entered phone numbers, reduce failed SMS/voice delivery attempts, and improve contact data quality. The product is delivered as a REST API with JSON responses and is commonly integrated into web forms, onboarding flows, and data enrichment pipelines.
Simple REST API integration
numverify provides a straightforward HTTP API that returns validation and lookup results in a structured JSON format. This makes it easy to embed into sign-up forms, lead capture, and ETL workflows without specialized telecom infrastructure. The service model fits teams that want a lightweight validation step rather than a full communications platform.
Carrier and line-type metadata
The API returns carrier information and line-type indicators (for example, mobile vs. landline) that can support routing decisions and segmentation. This is useful for reducing messaging spend by avoiding numbers that cannot receive SMS. It also supports basic geo context via country-related fields for downstream analytics and compliance workflows.
Useful for data hygiene workflows
numverify can be used as a pre-validation step to reduce obvious formatting and numbering errors before storing records. It supports common use cases like deduplication support, contact record normalization, and reducing manual review of invalid numbers. This aligns well with teams focused on contact data quality rather than outbound messaging execution.
Not an end-to-end verification flow
numverify focuses on number validation/lookup and does not function as a full phone verification workflow by itself. If a business needs OTP delivery, programmable messaging, or voice call verification, it typically requires additional services. This can increase integration complexity compared with platforms that combine lookup and verification delivery.
Limited identity and fraud signals
The service primarily returns phone metadata and does not provide deeper risk scoring, device intelligence, or behavioral fraud detection features that some verification stacks include. For high-risk onboarding or account takeover prevention, teams may need supplementary fraud and reputation data sources. As a result, it may be better suited to basic validation than advanced trust-and-safety programs.
Coverage and accuracy vary by region
Phone number intelligence quality can vary by country, carrier, and numbering plan changes, and results may not be uniformly reliable across all geographies. Organizations operating globally often need to test coverage and error rates in their target markets before standardizing on a provider. Some use cases may require fallback providers or periodic revalidation to maintain data quality.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Free | $0.00 per month (or $0.00 per year) | 100 API requests/month; No support; Number validation, real-time carrier & line-type detection, country & location detection, 256-bit HTTPS encryption; Overage per call listed as 0.0000000000. |
| Starter | $9.99 per month ($107.99 billed annually) | 2,000 API requests/month; Overage: $0.0099900000 per call; Standard support; Number validation, carrier & line-type detection, country & location detection, 256-bit HTTPS. |
| Basic | $14.99 per month ($161.99 billed annually) | 5,000 API requests/month; Overage: $0.0059960000 per call; Standard support; Platinum Support optional ($479.88 billed annually); Number validation, carrier & line-type detection, country & location detection, 256-bit HTTPS. |
| Professional | $59.99 per month ($629.99 billed annually) | 50,000 API requests/month; Overage: $0.0023996000 per call; Standard support; Platinum Support optional ($599.88 billed annually); Number validation, carrier & line-type detection, country & location detection, 256-bit HTTPS. |
| Enterprise | $129.99 per month ($1,325.99 billed annually) | 250,000 API requests/month; Overage: $0.0010399200 per call; Standard support; Platinum Support optional ($719.88 billed annually shown on plan); "Contact us" for custom volume requests and enterprise terms. |
Seller details
apilayer GmbH
Vienna, Austria
Private
https://mailboxlayer.com/
https://x.com/apilayer
https://www.linkedin.com/company/apilayer/
