numverify.com valid

Numverify

Numverify is a real-time phone number validation and lookup REST API covering 232 countries, used to validate numbers at the point of entry, keep user databases clean, qualify leads, cut undelivered SMS, and fight fraudulent sign-ups. A single HTTP GET checks a number against regularly updated international numbering plans and returns lightweight JSON containing whether the number is valid, its local and international formats, the country code, name and dial prefix, the geographic location it is

For agents: REST API for real-time phone number validation and lookup across 232 countries; returns JSON validity, formats and carrier/location data. Free tier.

phone number validationphone lookup apirest apisms fraud preventionnumber verification

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T09:03:51.070Z. Cached copy · Source on numverify.com

# Numverify

> Numverify is a real-time phone number validation and lookup REST API covering 232 countries, used to validate numbers at the point of entry, keep user databases clean, qualify leads, cut undelivered SMS, and fight fraudulent sign-ups. A single HTTP GET checks a number against regularly updated international numbering plans and returns lightweight JSON containing whether the number is valid, its local and international formats, the country code, name and dial prefix, the geographic location it is registered to, the carrier operating it, and the line type (mobile, landline, or other). Both international numbers, passed with their dial code, and national numbers, passed with an extra two-letter country code, are supported. Responses support prettyprinted JSON, JSONP callbacks, and Access-Control (CORS) headers, and are secured over 256-bit HTTPS. Numverify is part of the APILayer suite (one account, one API key, one dashboard across the APILayer product family).
A free API key is available at https://numverify.com/signup/free/monthly — the Free Plan is a no-time-limit trial with 100 monthly API requests and the full feature set, including real-time validation, carrier and line type detection, country and location detection, and HTTPS, restricted to non-commercial use and without support; paid plans add commercial-use rights, standard support, and higher request volumes rather than extra features. Paid tiers are Basic ($14.99/month, 5,000 requests), Professional ($59.99/month, 50,000 requests), and Enterprise ($129.99/month, 250,000 requests), with a custom plan for higher volumes and up to 15% off on annual billing. To call the API, append your access_key as a query parameter. The base URL is apilayer.net/api. A single validation is one HTTP GET request: apilayer.net/api/validate?access_key=YOUR_KEY&number=14158586273. The main endpoint is Validate (GET /validate), which takes the number parameter in either international format (with the country dial code, e.g. +14158586273) or national format, in which case the two-letter country_code parameter must also be supplied; an optional format parameter set to 1 returns prettified JSON for debugging. The response object contains valid, number, local_format, intl_format, country_code, country_name, country_prefix, location, carrier, and line_type. Usage notifications are sent at 75%, 90%, and 100% of the monthly allowance, after which overage fees apply. Code examples and integration guides are provided for multiple languages.
## Getting Started
- [Numverify Homepage](https://numverify.com/): Global phone number validation and lookup API for 232 countries
- [API Documentation](https://docs.apilayer.com/numverify/docs/api-documentation): Full reference — the validate endpoint, parameters, response objects, errors, and code examples
- [Free API Key Signup](https://numverify.com/signup/free/monthly): Create a free account with 100 monthly requests
- [Login](https://numverify.com/login):
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Machine-readable: GET /v1/resolve?q=numverify.com · GET /v1/domain/numverify.com · this page as Accept: application/json or text/markdown · MCP lookup_domain

Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.

Claim my listing on Agent Web Map for numverify.com:
1. POST https://agentwebmap.com/v1/sites/numverify.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://numverify.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/numverify.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/numverify.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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