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numlookupapi.com

numlookupapi.com

From $9.99/mo WebAPI
Visit numlookupapi.com
Spec score 7.4 #16 of 25 in Phone Number Validation Software

What it is

numlookupapi.com provides a JSON REST API for phone-number validation and lookup across 230+ countries. A lookup can return country, location, carrier, line type, and time zones, though location and carrier may be empty. The API does not identify the person behind a number or return their name or address. It can validate up to 100 numbers in one request and returns E.164 and national formats plus a tel: link for click-to-call. Supported line types include mobile, landline, toll-free, premium-rate, satellite, VoIP, shared-cost, personal, and UAN. Developers can use official JavaScript, Ruby, PHP, and Python SDKs, HTTP API access, or a hosted MCP server for AI agents; documentation also links to a Postman collection. The Free plan lists 100 requests and a limit of 10 requests per minute. Basic costs $9.99 a month and lists 5,000 requests, batch validation, one API key, and no rate limit. Pro costs $49.99 a month, and Scale costs $109.99 a month. The maker describes uses including inbound call and lead screening, contact-center routing, and fraud signals.

Spec sheet

Support
The maker says technical support questions receive an actionable reply within 24 hours and directs users to its support team.Read 8 Oct 2026 · numlookupapi.com
API interface
The documentation describes HTTP API access, API-key authentication through HTTP headers or GET parameters, and a hosted MCP server for AI agents.Read 8 Oct 2026 · numlookupapi.com
Batch validation
The API supports up to 100 phone numbers in one request.Read 8 Oct 2026 · numlookupapi.com
Core product
Numlookupapi is a JSON REST API for validating phone numbers and looking up carrier, line type, and location in 230+ countries.Read 8 Oct 2026 · numlookupapi.com
Data sources
The pricing FAQ says lookup data comes from several phone data providers and international carriers.Read 8 Oct 2026 · numlookupapi.com
Developer integrations
Official SDKs are available for JavaScript, Ruby, PHP, and Python, and the documentation links to a Postman collection.Read 8 Oct 2026 · numlookupapi.com
Intended use
The maker describes inbound call and lead screening, contact-center routing, and fraud signals as use cases.Read 8 Oct 2026 · numlookupapi.com
Lookup fields
A lookup can return country, location, carrier, line type, and time zones; location and carrier may be empty.Read 8 Oct 2026 · numlookupapi.com
No people identity
The API does not return the name or address of the person behind a phone number.Read 8 Oct 2026 · numlookupapi.com
Number formatting
The homepage says results include E.164 and national formats plus a tel: link for click-to-call.Read 8 Oct 2026 · numlookupapi.com
Privacy details
The policy says the site may collect names and email addresses and may use cookies, and describes GDPR rights including access, correction, deletion, and portability.Read 8 Oct 2026 · numlookupapi.com
Rate limits
The pricing page lists 10 requests per minute on Free and says paid plans have no rate limit.Read 8 Oct 2026 · numlookupapi.com
Reliability
The pricing FAQ reports 99.99% API uptime over the preceding 12 months and links users to a status page for current status.Read 8 Oct 2026 · numlookupapi.com
Security and privacy
The privacy policy says technical and organizational measures are used to prevent unauthorized access, alteration, disclosure, or destruction of personal data.Read 8 Oct 2026 · numlookupapi.com
VoIP and line types
The service identifies mobile, landline, toll-free, premium-rate, satellite, VoIP, shared-cost, personal, and UAN number types.Read 8 Oct 2026 · numlookupapi.com

Plans and prices

Basic $9.99 a month $9.99 /mo 5,000 Requests · Batch Validation · 1 API Key · No Rate Limit · E-Mail Support Read 8 Oct 2026 · numlookupapi.com
Pro $49.99 a month $49.99 /mo 50,000 Requests · Batch Validation · 2 API Keys · Sandbox API Keys · No Rate Limit · E-Mail Support · Team Management Read 8 Oct 2026 · numlookupapi.com
Scale $109.99 a month $109.99 /mo 250,000 Requests · Batch Validation · 5 API Keys · Sandbox API Keys · No Rate Limit · Tailored Support · Team Management · IP White- & Blacklisting · URL Whitelisting · SLA · Overages Read 8 Oct 2026 · numlookupapi.com
Custom Priced on request Custom Custom Requests · Batch Validation · Custom API Keys · Sandbox API Keys · No Rate Limit · Tailored Support · Team Management · IP White- & Blacklisting · URL Whitelisting · Custom SLA · Overages Read 8 Oct 2026 · numlookupapi.com
Free Price not published $0.00 /mo 100 Requests · Batch Validation · 1 API Key · 10 Requests / Min. Read 8 Oct 2026 · numlookupapi.com

Every numlookupapi.com plan and price →

Strong points and limits

Strong points

  • Lookups cover 230+ countries.
  • Batch requests support up to 100 numbers.
  • Returns line type, carrier, and time-zone fields.
  • SDKs are available for four languages.
  • Paid plans list no rate limit.

Limits

  • Free plan allows 100 requests.
  • Free plan is limited to 10 requests per minute.
  • Location and carrier fields may be empty.
  • The API does not identify a number's owner.

Who it suits

This API may suit developers building phone-number validation, line-type or carrier lookups, and inbound screening workflows. Its batch support and SDKs may help teams integrating lookups into applications or services.

Verdict

numlookupapi.com focuses on phone-number data and offers HTTP access, SDKs, and batch validation. The free plan has a 100-request allowance and 10-requests-per-minute limit; Basic costs $9.99 a month.

Where Specifiction places it

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