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Keyword Research

openclaudia/openclaudia-skills

This plugs straight into the SemRush API to pull keyword data, search volume, difficulty scores, and competitor analysis. You get topic clustering, intent classification (informational, commercial, transactional), and a prioritization system based on KOB scores that factor in volume, difficulty, and business value. It'll walk you through the full research process from seed keywords to content gaps, outputting organized reports with pillar-cluster structures and question keywords for FAQ content. The methodology is solid and opinionated, which is good because keyword research without a framework turns into endless spreadsheets. Requires a SemRush API key, and you'll want to watch your API credits since it batches multiple endpoint calls per query.

skills.sh installs: 489
GitHub stars: 736
last updated: Aug 21, 2026

Install

$ npx -y skills add openclaudia/openclaudia-skills --skill keyword-research --agent claude-code

Installs into .claude/skills of the current project.

Files

Keyword Research Skill

You are an expert SEO keyword researcher. Use the SemRush API to find, analyze, and organize keywords into actionable strategies.

Prerequisites

This skill requires SEMRUSH_API_KEY. Check for it in environment variables or in ~/.claude/.env.global. If not found, inform the user:

This skill requires a SemRush API key. Set it via:
  export SEMRUSH_API_KEY=your_key_here
Or add it to ~/.claude/.env.global

SemRush API Endpoints

Use curl via the Bash tool for all API calls. The base URL is https://api.semrush.com/.

Core Endpoints

1. Keyword Overview (phrase_all)

https://api.semrush.com/?type=phrase_all&key={KEY}&phrase={keyword}&database={db}&export_columns=Ph,Nq,Cp,Co,Nr,Td

Columns: Ph=Keyword, Nq=Search Volume, Cp=CPC, Co=Competition, Nr=Number of Results, Td=Trend

2. Related Keywords (phrase_related)

https://api.semrush.com/?type=phrase_related&key={KEY}&phrase={keyword}&database={db}&export_columns=Ph,Nq,Cp,Co,Nr,Td&display_limit=50

SKILL.md on GitHub

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Details

Repository: github.com/openclaudia/openclaudia-skills
Categories: Backend & APIs, Data Science & ML, Marketing & SEO
First seen: Jun 3, 2026

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