Numverify
Data Validation
Numverify is a REST JSON API for international phone number validation and lookup covering 232 countries and territories including Nigeria. Operated by APILayer (apilayer.com), the API provides phone number validity checking, carrier identification, line type classification, and geographic location data in a single lightweight call. With a free tier of 100 monthly requests and paid plans from $9.99/month, Numverify suits developers at all scales needing affordable phone validation without a full communications platform.
Nigerian developers and businesses needing basic phone number validation, carrier lookup, and line type detection for 232 countries at an affordable starting price with a free tier.
Numverify is operated by APILayer (apilayer.com). Covers 232 countries including Nigeria (+234). Returns carrier name, location, line type, and validity in a single JSON response. HTTPS requires paid plan — free tier is HTTP only.
Features Included
Not Supported
Technical Specs
- Pricing:Free: 100 requests/month. Paid plans from $9.99/month. Annual billing saves up to 15%. All plans include 256-bit HTTPS encryption.
- Authentication:API Access Key (query parameter: ?access_key=YOUR_KEY)
- Rate Limit:Free: 100 requests/month. Paid plans scale by tier.
- Sandbox Mode:✗ Not available
Key Highlights
- Free 100 requests/month to start
- 232 countries including Nigeria
- Carrier + location + line type in one call
- $9.99/month entry-level paid plan
- 15% savings on annual billing
- JSON API with simple access_key authentication
- Part of APILayer ecosystem
Required Access Documents
- Email RegistrationRequiredSign up at numverify.com with an email to receive your free API access key. No credit card needed for the free tier.
Use Cases
- Nigerian Phone Number Validation at Signup:Validate Nigerian user phone numbers during app registration using Numverify to confirm the number is real and formatted correctly before sending an OTP or storing in your database.
- Carrier Detection for SMS Routing:Use Numverify to identify the carrier of a Nigerian user's number and route SMS through the optimal gateway or sender ID for that carrier (MTN, Airtel, Glo, or 9mobile) to improve delivery rates.
- Fraud Signal via Line Type:Check whether a Nigerian registrant's phone is mobile, landline, or VoIP using Numverify — flag VoIP numbers as potential fraud indicators during onboarding.
- CRM Data Enrichment:Enrich a Nigerian customer contact database by running phone numbers through Numverify to add carrier, location, and line type metadata for better SMS campaign targeting.
- E-commerce Order Validation:Validate Nigerian customer phone numbers at checkout using Numverify to reduce failed SMS delivery notifications from incorrectly entered numbers.