Keyword Tool: Free SEO Ideas

Free keyword research

Keyword Tool brings free keyword research into your AI with no sign-up, API key, or credit card. Turn a seed into up to 1,000 Google and Bing autocomplete ideas—including suggestions, questions, prepositions, and related keywords—then view available search volume, competition, and trend data for top results.

What you can ask

Find long-tail keyword ideas for vegan protein powder on Google in the United States.
Example path

MCP connector

Server URL: https://mcp.keywordtool.io/guest
Login: None
Protocol: MCP 2025-11-25
Instructions: KeywordTool.io MCP server. Provides keyword research data from Google and Bing, powered by Google Ads and Bing Ads APIs: keyword suggestions, monthly search volume, CPC, and competition metrics for Google and Bing, plus competitor keyword analysis for Google domains. Google coverage: 190+ countries, 120+ languages for suggestions; 50+ languages for search volume. Bing coverage: 95 countries, 140 languages for suggestions; 6 countries, 3 languages for search volume (keyword_planner), 34 countries for search volume (historical_data). Metric field semantics: cpc is average cost-per-click (returned for Bing only); top_of_page_bid_low and top_of_page_bid_high are Google Ads top-of-page bid estimates in the request currency (returned for Google only) and are a different metric from CPC - the pair represents one bid range, low to high. Batch capacity: the search-volume tool accepts up to 1000 keywords per call for Google and up to 1000 for Bing.

Tools

Reads data2

Skills

None in the store listings or on the server

MCP connector

Server URL

https://mcp.keywordtool.io/guest

None

Protocol

MCP 2025-11-25

Instructions

KeywordTool.io MCP server. Provides keyword research data from Google and Bing, powered by Google Ads and Bing Ads APIs: keyword suggestions, monthly search volume, CPC, and competition metrics for Google and Bing, plus competitor keyword analysis for Google domains. Google coverage: 190+ countries, 120+ languages for suggestions; 50+ languages for search volume. Bing coverage: 95 countries, 140 languages for suggestions; 6 countries, 3 languages for search volume (keyword_planner), 34 countries for search volume (historical_data). Metric field semantics: cpc is average cost-per-click (returned for Bing only); top_of_page_bid_low and top_of_page_bid_high are Google Ads top-of-page bid estimates in the request currency (returned for Google only) and are a different metric from CPC - the pair represents one bid range, low to high. Batch capacity: the search-volume tool accepts up to 1000 keywords per call for Google and up to 1000 for Bing.