# TianAPI, free: Phone validation API

> 支持移动、联通、电信三网号码检测，精准识别空号、停机、无效号码。

TianAPI's phone validation API on its 申请即送20次 plan. It costs $0.00 per 1,000 phones. It returns 3 of the 9 key fields we check: Validity, Carrier, Place.
We haven't run TianAPI through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 888 plans for phone validation APIs by price. Half the plans cost $3.376 per 1,000 phones or less.
[Botoi's $199 monthly plan](https://datacircle.dev/validate-phone-apis/botoi/199-monthly/llms.txt) is the cheapest paid plan per 1,000 phones: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 phones a day.
[Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt), [Foxentry](https://datacircle.dev/validate-phone-apis/foxentry/top-up-pay-as-you-go-post-phone-validate-validate-phone-number-extended/llms.txt) and [HLR Lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-1-1m-post-hlr-lookup/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/tianapi/free
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.tianapi.com/vip.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `GET https://apis.tianapi.com/emptymobile/index`
- API key: with the plan, on https://www.tianapi.com/vip.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://www.tianapi.com/apiview/270?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: TianAPI, formerly 天行数据 (https://www.tianapi.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 33%
- Validity: ✓
- Carrier: ✓
- Place: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: 支持移动、联通、电信三网号码检测，精准识别空号、停机、无效号码。

## Data

- Countries: China
- What it checks: line in service
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: CNY 0
- You get: 20 requests
- Enough for: 20 calls

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: mobile
- Method: GET
- Path: /emptymobile/index

## About the plan

- Plan: 申请即送20次
- Who can get it: anyone who registers

## The 5 fields the plan's answer can hold

response code, message, carrier, location, status

## TianAPI's plans (7)

- [TianAPI, free](https://datacircle.dev/validate-phone-apis/tianapi/free/llms.txt): $0.00 per 1,000, 33% complete
- [TianAPI, CNY 10 pack](https://datacircle.dev/validate-phone-apis/tianapi/cny-10-pack/llms.txt): $0.897 per 1,000, 33% complete
- [TianAPI, CNY 100 pack](https://datacircle.dev/validate-phone-apis/tianapi/cny-100-pack/llms.txt): $0.816 per 1,000, 33% complete
- [TianAPI, CNY 500 pack](https://datacircle.dev/validate-phone-apis/tianapi/cny-500-pack/llms.txt): $0.748 per 1,000, 33% complete
- [TianAPI, CNY 2,000 pack](https://datacircle.dev/validate-phone-apis/tianapi/cny-2000-pack/llms.txt): $0.69 per 1,000, 33% complete
- [TianAPI, CNY 5,000 pack](https://datacircle.dev/validate-phone-apis/tianapi/cny-5000-pack/llms.txt): $0.66 per 1,000, 33% complete
- [TianAPI, contact us](https://datacircle.dev/validate-phone-apis/tianapi/contact-us/llms.txt): 33% complete

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

- `GET /emptymobile/index`: [TianAPI, free](https://datacircle.dev/validate-phone-apis/tianapi/free/llms.txt)

## TianAPI's APIs (2)

- [TianAPI (formerly 天行数据): phone validation API pricing, 7 plans](https://datacircle.dev/validate-phone-apis/tianapi/free/llms.txt)
- [TianAPI (formerly 天行数据): news API pricing, 6 plans, GET /allnews/index](https://datacircle.dev/news-apis/tianapi/free-get-allnews-index/llms.txt)
- [TianAPI (formerly 天行数据): news API pricing, 6 plans, GET /generalnews/index](https://datacircle.dev/news-apis/tianapi/free-get-generalnews-index/llms.txt)

## TianAPI: phone validation API alternatives

- [VerifNow, $99 monthly](https://datacircle.dev/validate-phone-apis/verifnow/99-monthly/llms.txt): $0.66 per 1,000, 44% complete
- [BigDataCloud, $799 yearly, Silver, GET /data/phone-number-validate](https://datacircle.dev/validate-phone-apis/bigdatacloud/799-yearly-silver-get-data-phone-number-validate/llms.txt): $0.666 per 1,000, 56% complete, stored
- [ReefAPI, $200 monthly, Enterprise monthly, POST /phone-validate/v1/validate](https://datacircle.dev/validate-phone-apis/reefapi/200-monthly-enterprise-monthly-post-phone-validate-v1-validate/llms.txt): $0.667 per 1,000, 67% complete, stored
- [ZelNum, $100 pack, Pay as you go, $100 top-up, POST /detect, LINE Number Checker](https://datacircle.dev/validate-phone-apis/zelnum/100-pack-pay-as-you-go-100-top-up-post-detect-line-number-checker/llms.txt): $0.667 per 1,000, 11% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

- https://www.tianapi.com/about.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.tianapi.com/apiview/270?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.tianapi.com/apiview/51?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.tianapi.com/apiview/87?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.tianapi.com/openapi/emptymobile.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.tianapi.com/vip.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing