Mangools - SEO Tools Suite

Keyword Research API by Mangools

Get keyword ideas, search volume, keyword difficulty, CPC, PPC, SERP data, and competitor keyword insights through the Mangools API.

Build SEO dashboards, automate keyword research, enrich content workflows, or plug KWFinder data into your own internal tools — without scraping, manual exports, or messy spreadsheets.

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Trusted by SEO pros, agencies, marketers, and business owners who use Mangools to find easy-to-rank keywords, analyze SERPs, and grow organic traffic with ease.

Keyword Research API

Bring KWFinder data into your own workflow

Mangools API gives you access to the same practical SEO data behind KWFinder and other tools in our SEO suite.

Use it to discover keyword opportunities, evaluate ranking difficulty, analyze competitors, and make keyword research part of your own product or reporting workflow.

With the Keyword Research API, you can access:

  • Related keyword suggestions
  • Average monthly search volume
  • Historical search volume trends
  • Keyword difficulty (cached)
  • CPC and PPC competition
  • Organic SERP results
  • CTR data for organic positions
  • Competitor ranking keywords
  • Keyword gap analysis
  • Localized keyword data by country, region, state, or city
  • CSV keyword exports
  • Keyword lists and lookup history
Check out KWFinder API documentation

Everything you need for keyword research at scale

Keyword suggestions

Start with a seed keyword and get up to 700 related keyword ideas, sorted by relevance. Each keyword can include essential metrics such as search volume, CPC, PPC, keyword difficulty (cached), and search volume history.

Bulk keyword analysis

Import your own keyword set and get keyword metrics in bulk. Analyze hundreds of keywords in one request and return keyword difficulty, CPC, PPC, search volume history, average search volume, organic SERP results, and CTR data.

Competitor keyword research

Enter a domain, subdomain, or URL and discover the keywords it ranks for. Results are sorted by estimated organic visits impact, so you can quickly find the terms that matter most. Use it to uncover competitor strengths, find missing content opportunities, and prioritize keywords that already drive traffic in your niche.

Keyword gap analysis

Compare your domain against up to 5 competitors and find keywords they rank for but you do not. Turn competitor research into a clear SEO roadmap: missing topics, high-value keywords, and content opportunities that are already working for others.

SERP and keyword difficulty data

Go beyond basic keyword metrics. Get SERP results for a keyword, including ranking URLs, SERP features, CTR data, number of results, and essential SEO metrics for ranking pages. Keyword difficulty returned with keyword suggestions and bulk lookups is a cached value — to re-evaluate it in real time, trigger a SERP lookup, which fetches the live SERP and the authority metrics of every ranking page and recomputes KD from them. Use this data to understand not only keyword demand, but also how hard it may be to rank.

Local keyword data for real markets

Keyword research is not one-size-fits-all. KWFinder API supports localized keyword and SERP data, including city-level targeting. Use location and language parameters to analyze search demand and SERP competition in the markets that matter to your business or clients.

Built for SEO tools, dashboards, reports, and internal workflows

Build SEO dashboards

Pull keyword metrics directly into your product, BI dashboard, or internal reporting tool.

Automate client reports

Replace manual keyword exports with automated reports that include search volume, difficulty, CPC, rankings, and competitor insights.

Power content workflows

Score keyword ideas automatically and send the best opportunities into your content planning and editorial workflow.

Find competitor opportunities

Analyze what competitors rank for, compare keyword gaps, and prioritize terms with the highest SEO potential.

Enrich your own keyword database

Add Mangools keyword metrics to your existing keyword lists, CRM, CMS, or custom SEO platform.

Why use Mangools Keyword Research API?

Practical keyword data, not data overload

Mangools is built around useful SEO workflows. You get the metrics that help you make decisions: keyword difficulty, search volume, CPC, PPC, trends, SERP results, and competitor data.

Keyword research + SERP analysis in one API

A keyword is only useful when you understand the SERP behind it. Mangools connects keyword metrics with ranking pages, SERP features, CTR data, and SEO metrics, so you can evaluate real ranking opportunities.

Local SEO-ready

Get keyword and SERP data for specific markets, including city-level locations. Ideal for agencies, SaaS platforms, local businesses, and international SEO teams.

Friendly for teams and developers

Simple authentication, REST endpoints, JSON responses, clear limits, and support from people who understand SEO.

More than keyword data

Mangools API can also provide access to SERPChecker, SERPWatcher, LinkMiner, SiteProfiler, and AI Search Watcher data, so your integration can grow beyond keyword research.

Frequently asked questions

Answers to common questions about the Mangools Keyword Research API.

  • What is the Mangools Keyword Research API?

    Mangools Keyword Research API lets you access keyword data from KWFinder and related Mangools tools through a REST API. You can get keyword ideas, search volumes, CPC, PPC, keyword difficulty, SERP results, competitor keywords, and keyword gap data.

  • What keyword metrics are available?

    The API can return average search volume, historical search volume, CPC, PPC competition, keyword difficulty, organic SERP results, CTR data, and other keyword-related metrics depending on the endpoint.

  • Is the keyword difficulty cached or real-time?

    Keyword difficulty from the keyword research endpoints is a cached score. Because KD is derived from the authority profile of the pages currently ranking for a keyword, getting a freshly re-evaluated KD requires a SERP lookup (the SERPChecker API), which fetches the live SERP and recomputes difficulty. That SERP fetch counts as one lookup against your quota; recently-cached SERPs don’t count.

  • Can I get keyword suggestions via API?

    Yes. Use the related keywords endpoint to get keyword ideas based on a seed keyword. Results are sorted by relevance and can include key SEO metrics.

  • Can I analyze keywords in bulk?

    Yes. You can import hundreds of keywords in a single request and receive all SEO metrics you need.

  • Do repeated requests count against my limits?

    For several KWFinder endpoints, identical requests made within 24 hours are not counted again toward your keyword lookup limit.

  • How do I authenticate API requests?

    To authenticate, first register for a Mangools account and retrieve your unique key from the API token page. Once you have your key, simply include it in the X-Access-Token request header for all your API calls.

  • What happens if I hit the rate limit?

    If too many requests are sent too quickly, the API may return a 429 Too Many Requests response. Use retry logic and exponential backoff for stable integrations.

Get your FREE API access today

Stop waiting for manual approvals. Grab your API key and start building immediately with a free Mangools account (no credit card required). Use our keyword research API to:

  • Automate internal SEO workflows
  • Create client dashboards
  • Enrich keyword databases
  • Analyze competitor keyword opportunities
  • Power content and AI SEO agent workflows
Register & use API for FREE