# APITier, free: Phone validation API

> Validate national and international phone numbers in a single API call. Detect carrier, line type, and geocode location. Returns E.164 format, country details, and timezone in structured JSON.

APITier's Free plan for the phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields. APITier's docs list 6: Number, Formats, Validity, Type, Carrier, Place.
We haven't run APITier through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 1,266 plans for phone validation APIs by price. Half the plans cost $3.55 or less per 1,000 phones. [See the best free phone validation API plan.](https://datacircle.dev/best-phone-validation-api.txt)
[GuGuData's CNY 124 (about $19) monthly plan](https://datacircle.dev/validate-phone-apis/gugudata/cny-124-monthly/llms.txt) is the cheapest paid plan per 1,000 phones. GuGuData's CNY 124 (about $19) monthly plan charges nothing per call. You get as many phones as GuGuData's rate limit allows. [Neutrino API's On-Demand plan](https://datacircle.dev/validate-phone-apis/neutrino-api/pay-as-you-go-on-demand/llms.txt) costs the least for 10,000 phones a month: $0.80.
[Trestle](https://datacircle.dev/validate-phone-apis/trestle/top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api/llms.txt), [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt) and [Abstract API](https://datacircle.dev/validate-phone-apis/abstract-api/19-monthly-starter-5000-requests-month/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/apitier/free
- [Phone validation API: the best of 50+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.apitier.com/pricing-plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `GET https://phone.apitier.com/v1/validate`
- API key: with the plan, on https://www.apitier.com/pricing-plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://docs.apitier.com/docs/validate-phone-api/single-number-requests?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: APITier (https://www.apitier.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 67%
- Number: ✓
- Formats: ✓
- Validity: ✓
- Type: ✓
- Carrier: ✓
- Place: ✓

## Price

- $ per 1,000 phones: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Email Validation · VAT Number Validation · India Pincode Lookup · QR Code Generation · Barcode Generation · Data Format Conversion · Web Screenshot (Conversion) · Checkout Signals · Address Agent — Validate · Address Agent — Enrich · Business Verify Agent · Lead Agent — Validate · Director Search Agent · KYC Agent — Onboard · Company Lookup · PSC Lookup · Web Scrape · Web to Text

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Validate national and international phone numbers in a single API call. Detect carrier, line type, and geocode location. Returns E.164 format, country details, and timezone in structured JSON.

## Data

- Countries: Worldwide
- What it checks: numbering plan, carrier
- Keep data: no limit
- Use data: You may use the services only in accordance with the documentation, applicable rate limits, plan restrictions, and technical requirements published by APITier. You must not misuse the services, attempt to bypass quotas or authentication controls, probe or scan for vulnerabilities, interfere with service availability, resell the services except as expressly permitted, or use the services in a manner that violates law, infringes rights, or exposes APITier or its suppliers to regulatory or security risk. [...] You must not use service outputs to create, compile, or maintain a separate address, postcode, or geographic database, product, or service that is sold, licensed, distributed, or otherwise made available to any third party.

## Plan

- Pay: $0
- You get: 1,000 credits a month
- Enough for: 1,000 calls a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: number
- Method: GET
- Path: /validate

## About the plan

- Plan: Free
- Who can get it: anyone

## The 14 fields the plan's answer can hold

status, number, valid, message, E.164 format, international format, national format, country code, country name, country prefix, line type, carrier, location, timezone

## APITier's plans (5)

- [APITier, free](https://datacircle.dev/validate-phone-apis/apitier/free/llms.txt): $0.00 per 1,000, 67% complete
- [APITier, $9 monthly](https://datacircle.dev/validate-phone-apis/apitier/9-monthly/llms.txt): $0.60 per 1,000, 67% complete
- [APITier, $29 monthly](https://datacircle.dev/validate-phone-apis/apitier/29-monthly/llms.txt): $0.58 per 1,000, 67% complete
- [APITier, $79 monthly](https://datacircle.dev/validate-phone-apis/apitier/79-monthly/llms.txt): $0.527 per 1,000, 67% complete
- [APITier, $199 monthly](https://datacircle.dev/validate-phone-apis/apitier/199-monthly/llms.txt): $0.442 per 1,000, 67% complete

## APITier's calls for this API (1)

- `GET /validate`: [APITier, free](https://datacircle.dev/validate-phone-apis/apitier/free/llms.txt)

## APITier's APIs (4)

- [APITier: business verification API pricing, 5 plans](https://datacircle.dev/business-verification-apis/apitier/free/llms.txt)
- [APITier: email verification API pricing, 5 plans](https://datacircle.dev/validate-email-apis/apitier/free/llms.txt)
- [APITier: phone validation API pricing, 5 plans](https://datacircle.dev/validate-phone-apis/apitier/free/llms.txt)
- [APITier: web scraping API pricing, 5 plans, Web Scrape](https://datacircle.dev/web-scraping-apis/apitier/free-web-scrape/llms.txt)
- [APITier: web scraping API pricing, 5 plans, Web to Text](https://datacircle.dev/web-scraping-apis/apitier/free-web-to-text/llms.txt)

## APITier: phone validation API alternatives

- [ZelNum, $500 pack, Pay as you go, $500 top-up, POST /detect/file, Signal Number Checker (file upload)](https://datacircle.dev/validate-phone-apis/zelnum/500-pack-pay-as-you-go-500-top-up-post-detect-file-signal-number-checker-file-upload/llms.txt): $0.435 per 1,000, 11% complete
- [NumLookupAPI, $109.99 monthly, Scale, GET /v1/validate/{number}, Validate Phone Number](https://datacircle.dev/validate-phone-apis/numlookupapi/109-99-monthly-scale-get-v1-validate-number/llms.txt): $0.44 per 1,000, 67% complete, stored
- [TPSCheck, £1,980 yearly, Business, POST /check](https://datacircle.dev/validate-phone-apis/tpscheck/1980-yearly-business-post-check/llms.txt): $0.44 per 1,000, 67% complete, 1 day
- [Numverify by APILayer, $1,325.99 yearly](https://datacircle.dev/validate-phone-apis/numverify-by-apilayer/1325-99-yearly/llms.txt): $0.442 per 1,000, 67% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://docs.apitier.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://terms.apitier.com/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.apitier.com/api-catalogue?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.apitier.com/api-catalogue/validate-phone-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.apitier.com/pricing-plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing