What is Keyword Tool.io?
Keyword Tool.io is a keyword research tool that generates long-tail keyword ideas from the autocomplete suggestions of search engines and marketplaces. You type a seed term, pick a platform, country and language, and it returns hundreds of related phrases people actually type. The free version works without an account, which makes it a quick way to brainstorm topics and product terms.
Its main strength is breadth. Keyword Tool covers 17 sources, including Google, YouTube, Bing, Amazon, eBay, Etsy, the App Store, Google Play, Instagram, TikTok, Pinterest, Reddit and AI tools such as Perplexity and Microsoft Copilot. The paid Pro plans add search volume, cost-per-click, competition and trend data, bulk lookups, exports, API access and an MCP server for AI assistants.
Keyword Tool.io at a glance
How does Keyword Tool.io work?
- Pick a platform
Choose where your audience searches, such as Google, YouTube, Amazon or TikTok, then set the country and language.
- Enter a seed keyword
Keyword Tool expands the term through autocomplete and returns long-tail suggestions and questions.
- Review metrics
On Pro plans, check search volume, CPC, competition and historical trends to prioritize the best ideas.
- Export or automate
Download results as CSV or Excel, or pull data through the API or MCP server into your own workflows.
Keyword Tool.io key features
Autocomplete keyword ideas
Returns up to 750 or more suggestions per search, drawn from what users type into each platform.
17 search sources
Covers web search, video, marketplaces, app stores, social networks and AI search tools in one interface.
Localized results
Supports more than 190 Google domains and over 120 languages for country-specific research.
Search volume and CPC
Pro plans show volume, cost-per-click, competition and up to 48 months of history depending on tier.
Bulk search volume
Check up to 1,000 keywords in one request on paid plans.
API and MCP server
Pro subscribers can access data by API and connect AI assistants such as Claude and ChatGPT.
Why use Keyword Tool.io?
- It surfaces real phrases from many platforms, which is useful beyond Google-only research.
- The free version needs no sign-up, so you can brainstorm ideas in seconds.
- Ecommerce sellers can research Amazon, eBay and Etsy terms in the same place as web keywords.
- Video and social creators get keyword ideas for YouTube, TikTok, Instagram and Pinterest.
- Developers and agencies can automate research through the API and MCP server.
Who is Keyword Tool.io best for?
A good fit for
- Content creators planning YouTube and TikTok topics
- Marketplace sellers on Amazon, eBay or Etsy
- SEO and PPC specialists who need long-tail ideas in many languages
- Agencies that want keyword data through an API
Less suited to
- Users who need backlink data, site audits or rank tracking
- Freelancers on a small budget who need search volume, since Pro plans start at a higher price than many keyword tools
Keyword Tool.io pricing
| Pricing model | Freemium |
|---|---|
| Free plan | Yes |
| Free trial | Not confirmed |
| Starting price | $68/month billed annually ($88 month to month) |
Plans scale by daily request limits, keyword volume checks and history depth, from Starter to Growth, Scale and Agency at $788/month. A 30-day money-back guarantee replaces a free trial.
Prices checked October 2026. Vendors change plans often, so confirm on the official Keyword Tool.io pricing page before you buy.
Keyword Tool.io pros and cons
Pros
- Covers far more platforms than most keyword tools
- Free version works without an account
- API and MCP access for automation
- Strong language and country coverage
Cons
- Search volume and CPC are locked behind fairly expensive Pro plans
- Focused on keyword ideas only, with no SEO audit or tracking tools
- No free trial of Pro, only a money-back guarantee
Keyword Tool.io integrations and platforms
Works with
Available on
Keyword Tool.io alternatives
See the full shortlist in Best Keyword Research Tools.
Keyword Tool.io FAQ
Is Keyword Tool.io free?
Keyword Tool.io has a free version that needs no account and generates hundreds of keyword suggestions per search. The free version mostly hides search volume and other metrics. To see volume, CPC, competition and trends, you need a Pro plan, which starts at $68 per month billed annually or $88 month to month.
What is Keyword Tool.io used for?
Keyword Tool.io is used to find long-tail keyword ideas based on autocomplete suggestions. Marketers use it for SEO, PPC, YouTube, Amazon and social media research. It helps uncover the specific phrases people search for, which can guide blog topics, video titles, product listings and ad keywords.
Does Keyword Tool.io work for YouTube and Amazon?
Yes. Keyword Tool.io supports 17 sources, including YouTube, Amazon, eBay, Etsy, TikTok, Instagram, Pinterest and the app stores. You select the platform before searching, and the tool returns suggestions based on that platform's autocomplete, so the ideas reflect how people search there rather than on Google.
Keyword Tool.io vs Google Keyword Planner: what's the difference?
Google Keyword Planner is free but built for advertisers, and it groups and rounds data around Google Ads. Keyword Tool.io focuses on long-tail ideas from autocomplete and covers many platforms beyond Google. Planner is fine for ad budgeting, while Keyword Tool is more useful for content and marketplace keyword discovery.
Does Keyword Tool.io have an API?
Yes. API access is included with Keyword Tool.io Pro plans and shares the same daily request limit as the web app. The service also offers an MCP server so AI assistants like Claude and ChatGPT can pull keyword data directly, plus a free guest MCP option with limited access.
Sources
This overview is based on Keyword Tool.io's official website and documentation, checked October 2026.