Free / Open-sourceWeb data API that turns any site into clean, AI-ready content
Free / Open-sourceWeb data API that turns any site into clean, AI-ready content
SERP API (Bright Data) records 802,752 monthly visits with -5.9% month-over-month growth and Paid, Contact for Pricing pricing. WriterZen records 11,160 monthly visits with -39% growth and Paid pricing.

All-in-one SEO content workflow from keyword research to published article
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | brightdata.com | writerzen.net |
| Pricing Model | Paid, Contact for Pricing | Paid |
| Monthly Visits | 802.75K (802,752) | 11.16K (11,160) |
| MoM Traffic Delta | -50.4K (-5.9%) | -7.14K (-39%) |
| Primary Market & Share | 🇺🇸 United States (29.5%) | 🇻🇳 Vietnam (66.6%) |
| Direct Visits / mo | 383.71K | 4.57K |
| User Rating | 4.6 | 4.3 |
| Supported Platforms | Website | Website |

Real-time search engine scraping API with structured JSON, HTML, or Markdown output
Pull on-demand search results from Google, Bing, DuckDuckGo, and Yandex, with support for many localized domains and languages.
Receive responses as structured JSON, raw HTML, or Markdown, so pipelines can consume results without custom parsing when you want the fast path.
Proxy rotation, CAPTCHA solving, and unblocking are handled by the API, so you do not have to build or maintain that infrastructure.
Target results from a specific country or language at no extra cost, useful for local SEO and international market research.

All-in-one SEO content workflow from keyword research to published article
Enter one seed keyword and get hundreds of clustered topic ideas with keyword insights, giving you months of scheduled content from a single search.
Work against Google's search database to evaluate low-competition keywords, forecast revenue potential, and apply the Keyword Golden Ratio filter to spot easy wins.
Import, analyze and cluster keywords into structured content plans without spreadsheets, then assign and track the resulting articles.
Build outlines from the top 20 SERP results, Reddit threads and Google Suggest, then draft in an editor with a GPT-4o mini assistant and a built-in plagiarism checker.
Free / Open-sourceWeb data API that turns any site into clean, AI-ready content
Free / Open-sourceWeb data API that turns any site into clean, AI-ready content

One API key for agent-grade web search, fetch, browsing and automation

Web search API and crawler built for AI agents
Free / Open-source150+ free online SEO tools and AI writing assistants in one place
Free / Open-source150+ free online SEO tools and AI writing assistants in one place
SpecialistAI visibility platform to get your brand cited in AI search
SpecialistAI visibility platform to get your brand cited in AI search

SpecialistProxies and web data APIs for scraping and AI pipelines
SpecialistProxies and web data APIs for scraping and AI pipelines

Free / Open-sourceThe AI SEO agent that researches, writes, publishes, and builds links for you
Free / Open-sourceThe AI SEO agent that researches, writes, publishes, and builds links for you

Free / Open-sourceAI SEO agents that rank on Google and get cited by AI chatbots
Free / Open-sourceAI SEO agents that rank on Google and get cited by AI chatbots

SpecialistAI agents that write, optimize and publish SEO content for you
SpecialistAI agents that write, optimize and publish SEO content for you

Free / Open-sourceSEO and content marketing platform with AI writing built in
Free / Open-sourceSEO and content marketing platform with AI writing built in
Free / Open-sourceTurn any website into structured JSON with a prompt instead of selectors
Free / Open-sourceTurn any website into structured JSON with a prompt instead of selectors

Web scraping API with built-in proxies, browsers, and anti-bot handling
Web scraping API with built-in proxies, browsers, and anti-bot handling