# APIHZ, free: Keyword research API

> 百度指数，查询指定关键词百度搜索次数，一般用于网站SEO关键词建设等场景。

APIHZ's Registered user plan for the keyword research API costs $0.00 per 1,000 keywords. We check each provider's docs for 6 fields: Search volume, Monthly trend, Cost per click, Competition and 2 more. APIHZ's docs list none of the 6.
You get up to 432,000 calls a month.
We haven't run APIHZ through [our keyword research API benchmark](https://datacircle.dev/best-keyword-research-api.txt) yet.
This plan is free. We rank 312 plans for keyword research APIs by price. Half the plans cost $1.947 or less per 1,000 keywords. [See the best free keyword research API plan.](https://datacircle.dev/best-keyword-research-api.txt)
[AppDrift's $14.99 monthly plan](https://datacircle.dev/keyword-research-apis/appdrift/14-99-monthly/llms.txt) costs the least per 1,000 keywords. AppDrift's keyword research API costs nothing beyond the plan price. [Pixel Tools's ₽99 pack](https://datacircle.dev/keyword-research-apis/pixel-tools/99-pack-guru-for-99-rubles-post-api-wordstatapi-wordstatapi/llms.txt) costs the least for 10,000 keywords a month: about $1.18.
[seodata.dev's $4.99 monthly plan](https://datacircle.dev/keyword-research-apis/seodata-dev/4-99-monthly/llms.txt) covers any number of keywords. seodata.dev's $4.99 monthly plan costs less up front than AppDrift's $14.99 monthly plan.
[DataForSEO](https://datacircle.dev/keyword-research-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-dataforseo-labs-google-keyword-overview-live/llms.txt), [AppDrift](https://datacircle.dev/keyword-research-apis/appdrift/14-99-monthly/llms.txt) and [Bing Webmaster Tools](https://datacircle.dev/keyword-research-apis/bing-webmaster-tools/free-get-webmaster-api-svc-json-getkeywordstats/llms.txt) are the best keyword research API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/keyword-research-apis/apihz/free
- [Keyword research API: the best SEO keyword data providers](https://datacircle.dev/best-keyword-research-api.txt)
- Get it: https://www.apihz.cn/template/miuu/faqadmin.php?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Request: `GET https://cn.apihz.cn/api/wangzhan/bdzs.php`
- API key: with the plan, on https://www.apihz.cn/template/miuu/faqadmin.php?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Its API docs: https://www.apihz.cn/api/wangzhanbdzs.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Sold by: APIHZ (https://www.apihz.cn?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 0%

## Price

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

## Charges

- Also pays for: 438 other calls

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: 百度指数，查询指定关键词百度搜索次数，一般用于网站SEO关键词建设等场景。

## Data

- Keep data: no limit
- Use data: 接口盒子提供的所有服务不得用于任何违法行为。接口盒子提供的信息，使用者应当自行判断准确性，适用性。使用者所造成的一切后果责任，损失等，由使用者自行承担。使用者产品所需资质应由使用者自身办理，接口盒子仅提供接口技术，不对使用者产品所需资质负责。从使用接口盒子的服务起默认遵守此协议。

## Plan

- Pay: CNY 0
- Enough for: 432,000 calls a month

## Rate limit

- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: words
- Method: GET
- Path: /api/wangzhan/bdzs.php

## About the plan

- Plan: Registered user
- Who can get it: anyone with a registered account

## The 10 fields the plan's answer can hold

keyword, keyword index, PC keyword index, mobile keyword index, keyword index year-over-year growth, keyword index sequential growth, PC keyword index year-over-year growth, PC keyword index sequential growth, mobile keyword index year-over-year growth, mobile keyword index sequential growth

## APIHZ's plans (2)

- [APIHZ, free](https://datacircle.dev/keyword-research-apis/apihz/free/llms.txt): $0.00 per 1,000, 0% complete
- [APIHZ, contact us](https://datacircle.dev/keyword-research-apis/apihz/contact-us/llms.txt): 0% complete

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

- `GET /api/wangzhan/bdzs.php`: [APIHZ, free](https://datacircle.dev/keyword-research-apis/apihz/free/llms.txt)

## APIHZ's APIs (11)

- [APIHZ: domain authority API pricing, 2 plans, GET /api/wangzhan/aizhanqz.php](https://datacircle.dev/domain-authority-apis/apihz/free-registered-user-get-api-wangzhan-aizhanqz-php/llms.txt)
- [APIHZ: domain authority API pricing, 2 plans, GET /api/wangzhan/seo1.php](https://datacircle.dev/domain-authority-apis/apihz/free-registered-user-get-api-wangzhan-seo1-php/llms.txt)
- [APIHZ: web scraping API pricing, 1 plan](https://datacircle.dev/web-scraping-apis/apihz/free/llms.txt)
- [APIHZ: web search API pricing, 2 plans](https://datacircle.dev/web-search-apis/apihz/free/llms.txt)
- [APIHZ: image search API pricing, 2 plans, GET /api/img/apihzimgbaidu.php](https://datacircle.dev/image-search-apis/apihz/free-registered-user-get-api-img-apihzimgbaidu-php/llms.txt)
- [APIHZ: image search API pricing, 2 plans, GET /api/img/apihzimgsougou.php](https://datacircle.dev/image-search-apis/apihz/free-registered-user-get-api-img-apihzimgsougou-php/llms.txt)
- [APIHZ: keyword research API pricing, 2 plans](https://datacircle.dev/keyword-research-apis/apihz/free/llms.txt)
- [APIHZ: related keywords API pricing, 2 plans](https://datacircle.dev/related-keywords-apis/apihz/free/llms.txt)
- [APIHZ: search autocomplete API pricing, 2 plans](https://datacircle.dev/search-autocomplete-apis/apihz/free/llms.txt)
- [APIHZ: SERP API pricing, 2 plans](https://datacircle.dev/serp-apis/apihz/free/llms.txt)
- [APIHZ: domain WHOIS API pricing, 1 plan, GET /api/wangzhan/whois.php](https://datacircle.dev/domain-whois-apis/apihz/free-registered-user-get-api-wangzhan-whois-php/llms.txt)
- [APIHZ: domain WHOIS API pricing, 1 plan, GET /api/wangzhan/whoisall.php](https://datacircle.dev/domain-whois-apis/apihz/free-registered-user-get-api-wangzhan-whoisall-php/llms.txt)
- [APIHZ: domain WHOIS API pricing, 1 plan, GET /api/wangzhan/whoisrdap.php](https://datacircle.dev/domain-whois-apis/apihz/free-registered-user-get-api-wangzhan-whoisrdap-php/llms.txt)
- [APIHZ: phone validation API pricing, 1 plan, GET /api/other/phonezt.php](https://datacircle.dev/validate-phone-apis/apihz/top-up-mengdian-credit-top-up-get-api-other-phonezt-php/llms.txt)
- [APIHZ: phone validation API pricing, 1 plan, GET /api/other/phonezts.php](https://datacircle.dev/validate-phone-apis/apihz/top-up-mengdian-credit-top-up-get-api-other-phonezts-php/llms.txt)
- [APIHZ: phone validation API pricing, 1 plan, GET /api/other/phoneztss.php](https://datacircle.dev/validate-phone-apis/apihz/top-up-mengdian-credit-top-up-get-api-other-phoneztss-php/llms.txt)
- [APIHZ: business verification API pricing, 1 plan, GET /api/shiming/qiye.php](https://datacircle.dev/business-verification-apis/apihz/top-up-mengdian-credit-top-up-get-api-shiming-qiye-php/llms.txt)
- [APIHZ: business verification API pricing, 1 plan, GET /api/shiming/qyinfo.php](https://datacircle.dev/business-verification-apis/apihz/top-up-mengdian-credit-top-up-get-api-shiming-qyinfo-php/llms.txt)

## APIHZ: keyword research API alternatives

- [DataForSEO, free, $1 trial credit, POST /v3/dataforseo_labs/google/keyword_overview/live](https://datacircle.dev/keyword-research-apis/dataforseo/free-1-trial-credit-post-v3-dataforseo-labs-google-keyword-overview-live/llms.txt): $0.00 per 1,000, 100% complete, 1 month
- [Bing Webmaster Tools, free, GET /webmaster/api.svc/json/GetKeywordStats](https://datacircle.dev/keyword-research-apis/bing-webmaster-tools/free-get-webmaster-api-svc-json-getkeywordstats/llms.txt): $0.00 per 1,000, 33% complete
- [Alura, free, GET /research/keywords/{id}](https://datacircle.dev/keyword-research-apis/alura/free-get-research-keywords-id/llms.txt): $0.00 per 1,000, 33% complete, stored
- [seodata.dev, free, Anonymous](https://datacircle.dev/keyword-research-apis/seodata-dev/free-anonymous/llms.txt): $0.00 per 1,000, 50% complete, stored
- [VebAPI, free](https://datacircle.dev/keyword-research-apis/vebapi/free/llms.txt): $0.00 per 1,000, 50% 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 2026-11-08.

- https://www.apihz.cn?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://www.apihz.cn/api/wangzhanbdzs.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://www.apihz.cn/api/wangzhansoubaidu.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://www.apihz.cn/template/miuu/faqadmin.php?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing