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How to Install OPC Skills in Claude Code (2-Minute Tutorial)

Tutorial 📅 January 28, 2026 ✍️ OPC Team ⏱️ 5 min

How to Install OPC Skills in Claude Code (2-Minute Tutorial)

By OPC Team | January 28, 2026 | 5 min read

TL;DR — Install 9 AI automation skills in Claude Code using /plugin marketplace add ReScienceLab/opc-skills. Get reddit research (no API key), domain hunting, SEO optimization, logo creation, and more. Takes 2 minutes. Saves $127/month vs paid tools. Reduces manual tasks by 85%. Complete guide with troubleshooting, skill overviews, and real user success stories below.

Why Install OPC Skills?

If you're a solopreneur running a one-person company, you know the pain: 10-15 hours per week wasted on manual research, domain hunting, logo creation, and repetitive tasks.

OPC Skills changes this:

Prerequisites

Before we begin, make sure you have:

That's it! No configuration, no dependencies, no complex setup.

Installation Steps

Step 1: Open Claude Code Command Palette

Launch Claude Code and press / to open the command palette. This is where you'll run all plugin commands.

Step 2: Add OPC Skills Marketplace

Type and run this command:

/plugin marketplace add ReScienceLab/opc-skills

What happens: Claude Code fetches the OPC Skills marketplace catalog containing all 9 skills from GitHub. This takes about 5-10 seconds.

✅ Success message: "Marketplace 'opc-skills' added successfully"

Step 3: Browse Available Skills

See what's available:

/plugin marketplace list opc-skills

You'll see all 9 skills with brief descriptions. Each skill is independently installable—no need to install everything.

Step 4: Install Skills You Need

Install individual skills:

# No API key required - perfect for beginners
/plugin install reddit@opc-skills

# Domain research - also no API key
/plugin install domain-hunter@opc-skills

# SEO optimization
/plugin install seo-geo@opc-skills

Or install multiple at once:

/plugin install reddit@opc-skills twitter@opc-skills seo-geo@opc-skills

Step 5: Verify Installation

Check your installed plugins:

/plugin list

You should see your installed OPC Skills listed with version numbers.

Success! 🎉 You now have AI-powered automation skills ready to use.

The 9 Skills Overview

1. 🔍 requesthunt - Product Validation

What it does: Scrapes Reddit, X, and GitHub to find user feature requests, complaints, and pain points for product validation.

Example use case: "Find complaints about calendar apps on Reddit from the last month"

Time saved: Research that takes 3-4 hours manually → 5 minutes automated

Real impact: A developer used requesthunt to validate their SaaS idea. Found 237 relevant user complaints in under 10 minutes, identifying clear market gaps.

Requirements: Requires API key (Get free trial)

2. 🌐 domain-hunter - Domain Research

What it does: Finds available domains, compares registrar prices across 10+ TLDs, discovers active promo codes automatically.

Example use case: "Find available .io domains for my AI SaaS startup and compare prices"

Time saved: 2+ hours of manual comparison → instant results

Cost saved: Average $15-30 per domain by finding the best registrar and promo codes

Real case study: How Domain Hunter Saved $50 - GoDaddy wanted $47.95/year, paid $14.98 instead.

Requirements: No API key needed

3. 🔴 reddit - Reddit Research

What it does: Search and retrieve content from Reddit via the public JSON API. Get posts, comments, subreddit info, and user profiles.

Example use case: "Get top posts from r/startups this week about bootstrapping"

Time saved: Manual Reddit scrolling (1-2 hours) → instant structured data

Use cases:

Requirements: No API key (uses Reddit's free public API)

4. 🐦 twitter - Twitter/X Research

What it does: Search and retrieve content from Twitter/X. Get user info, tweets, replies, followers, trending topics, and community discussions.

Example use case: "Find viral tweets about AI coding tools from this week"

Time saved: Manual Twitter search and analysis (2-3 hours) → 5 minutes

Use cases:

Requirements: twitterapi.io API key (Free tier available)

5. 🎨 logo-creator - AI Logo Generation

What it does: Creates logos using AI image generation (Gemini), removes backgrounds, crops to aspect ratio, exports as SVG.

Example use case: "Create a minimal, modern logo for a tech startup called 'DataFlow'"

Time saved: Hiring designer ($200-500) or DIY (3-5 hours) → 5 minutes

Output formats: PNG, SVG, transparent background

Dependencies: Requires nanobanana skill

Requirements: Gemini API key (Free tier: 1,500 requests/day)

6. 🖼️ banner-creator - Social Media Banners

What it does: Creates banners for GitHub, Twitter, LinkedIn, YouTube with AI generation and precise cropping.

Example use case: "Create a GitHub banner (1280x640) for my open source project"

Formats supported:

Time saved: Canva subscription ($12.99/mo) or designer ($50-100) → free

Dependencies: Requires nanobanana skill

Requirements: Gemini API key

7. 🤖 nanobanana - Gemini Image Generation

What it does: Text-to-image generation, image editing, batch generation, and 2K/4K output using Google Gemini 3 Pro Image.

Example use case: "Generate 20 product mockup variations for my landing page"

Features:

Requirements: Gemini API key (Free tier available)

8. 🚀 producthunt - Product Hunt Research

What it does: Search and retrieve content from Product Hunt. Get posts, topics, trending products, user profiles, and collections.

Example use case: "Find top AI tools launched on Product Hunt this month"

Use cases:

Requirements: Product Hunt API token (Free for personal use)

9. 📈 seo-geo - SEO & GEO Optimization

What it does: Optimizes your website for both traditional search engines (Google, Bing) and AI search engines (ChatGPT, Perplexity, Gemini, Claude).

Example use case: "Audit my website for AI search visibility and suggest improvements"

Features:

Impact: +40% AI visibility (based on Princeton GEO research)

Use cases:

Requirements: Optional DataForSEO API key for advanced features (basic features work without)

Dependencies: Requires twitter and reddit skills for research features

Troubleshooting Common Issues

❌ Error: "Marketplace not found"

Cause: Repository name typo or network connectivity issue

Fix:

# Ensure exact spelling (case-sensitive)
/plugin marketplace add ReScienceLab/opc-skills

# Check your internet connection
# Verify GitHub is accessible: https://github.com

❌ Error: "Plugin installation failed"

Cause: Network timeout, GitHub rate limit, or temporary API issue

Fix:

  1. Wait 1 minute and retry
  2. Check internet connection stability
  3. Verify GitHub status: https://www.githubstatus.com
  4. Try installing one skill at a time instead of multiple

❌ Skills not appearing in command palette

Cause: Plugin installed but not activated

Fix:

# Enable the plugin
/plugin enable reddit@opc-skills

# List all plugins to verify status
/plugin list

# Check for "enabled" status

❌ "Missing API key" errors when using a skill

Cause: Skill requires authentication but API key not configured

Fix: Each skill's documentation has setup instructions:

# Example: For Gemini-based skills (logo-creator, banner-creator, nanobanana)
export GEMINI_API_KEY="your_key_here"

# For Twitter skill
export TWITTERAPI_API_KEY="your_key_here"

# For RequestHunt skill
export REQUESTHUNT_API_KEY="your_key_here"

Tip: Add these to your ~/.bashrc or ~/.zshrc to persist across sessions.

❌ Permission denied or file access errors

Cause: Claude Code doesn't have permissions to write to plugin directory

Fix:

# Check permissions
ls -la ~/.claude/plugins

# Fix permissions if needed
chmod -R 755 ~/.claude/plugins

🆘 Still Having Issues?

What's Next?

🎯 Try Your First Skill

Start with something simple:

# Example: Reddit research (no API key needed)
"Search r/programming for posts about AI coding tools from this week"

# Example: Domain hunting (no API key needed)
"Find available .io domains similar to 'codecraft' and compare prices"

📚 Read Skill Documentation

Each skill has detailed docs with examples:

🚀 Install Skill Suites

Install multiple related skills for specific workflows:

Market Research Suite:

/plugin install reddit@opc-skills
/plugin install twitter@opc-skills
/plugin install requesthunt@opc-skills
/plugin install producthunt@opc-skills

Design Suite:

/plugin install logo-creator@opc-skills
/plugin install banner-creator@opc-skills
/plugin install nanobanana@opc-skills

SEO & Content Suite:

/plugin install seo-geo@opc-skills
/plugin install reddit@opc-skills
/plugin install twitter@opc-skills

Cost Comparison: OPC Skills vs Alternatives

Task Manual Time Paid Tools OPC Skills
Reddit research 2 hours $29/mo (Brand24) Free
Twitter monitoring 2 hours $99/mo (Hootsuite) $0.15/1k requests
Domain hunting 1 hour $15/domain (lost savings) Free
Logo creation $200-500 (designer) $20/logo (Fiverr) $0 (Gemini free tier)
Banner creation $50-100 (designer) $12.99/mo (Canva Pro) $0 (Gemini free tier)
SEO audit 3 hours $99/mo (Ahrefs) Free
Product Hunt research 1 hour Manual only Free
AI image generation $20/mo (Midjourney) $30/mo (DALL-E) $0 (Gemini free tier)
Total monthly 10-15 hours $127-$300/mo $0-15/mo

ROI: Installing OPC Skills saves 10+ hours per week and $127-300 per month compared to paid tools.

Real User Success Stories

"Domain Hunter saved me $33 on a single .io domain by comparing 8 registrars and finding an active promo code. I used to spend 30 minutes doing this manually. Now it's instant."

— Case study: How Domain Hunter Saved $50

"I used requesthunt to validate my calendar app idea. Found 237 relevant user complaints about existing tools in under 10 minutes. Before OPC Skills, this research would have taken me 3-4 hours of manual Reddit scrolling."

— Featured in: What is OPC?

"Logo-creator generated 20 logo variations in 5 minutes. I picked one, removed the background, and exported as SVG. Saved me $200+ vs hiring a designer on Fiverr."

— Solopreneur, Tech Startup

Frequently Asked Questions

Q: Do I need Claude Code Pro to use OPC Skills?

A: No, OPC Skills work with the free version of Claude Code. All 9 skills are compatible with both free and Pro versions.

Q: Can I use OPC Skills with other AI tools besides Claude Code?

A: Yes! Use the universal installation method:

npx skills add ReScienceLab/opc-skills

This works with Cursor, Windsurf, Droid, OpenCode, and 12+ other AI coding tools. See the full compatibility list.

Q: Are OPC Skills completely free?

A: Yes, all 9 skills are open source (MIT license) and free to use. Some skills integrate with third-party APIs that may require paid keys:

Q: How do I update OPC Skills to the latest version?

A: Run this command in Claude Code:

/plugin marketplace update opc-skills

This refreshes the marketplace catalog and updates all installed skills to the latest versions. Updates are non-breaking and preserve your configurations.

Q: What if I get errors about missing API keys?

A: Only some skills require API keys. Start with skills that don't:

Each skill's SKILL.md has detailed setup instructions for API keys.

Q: How much can I actually save using OPC Skills?

A: Based on our research:

Real example: Domain Hunter saved $33 on a single .io domain purchase.

Q: Can I contribute new skills to OPC Skills?

A: Absolutely! OPC Skills is open source. Here's how:

  1. Fork the GitHub repository
  2. Create your skill following the SKILL.md template
  3. Add scripts in the scripts/ directory
  4. Submit a pull request

See the Contributing Guide for details.

Q: Which skill should I install first as a beginner?

A: Start with reddit skill:

Try: "Search r/startups for posts about AI tools from this week"

Q: Do skills work offline?

A: Most skills require internet (they call external APIs). However:

Q: Are my API keys safe when using OPC Skills?

A: Yes. API keys are stored locally in your environment variables. They're never sent to OPC servers (we don't have any). Skills make direct API calls to service providers (Reddit, Twitter, Gemini, etc.).

Q: How often are skills updated?

A: OPC Skills follows semantic versioning:

Check CHANGELOG.md for version history.

Summary

What you accomplished:

✅ Installed OPC Skills marketplace in Claude Code ✅ Learned about all 9 automation skills ✅ Know how to troubleshoot common issues ✅ Understand which skills need API keys ✅ Ready to automate solopreneur tasks

Time to complete: ~2 minutes Skills available: 9 Cost: $0 (open source) Time saved: 85% reduction on research tasks Money saved: $127/month average

Recommended Next Steps

  1. Try your first skill: Start with reddit or domain-hunter (no API key needed)
  2. Read skill docs: Visit opc.dev/skills for detailed guides
  3. Join the community: GitHub Discussions
  4. Learn advanced patterns: Read Ralph Autonomous Agent Loop
  5. Share your success: Tweet @ReScienceLab with #OPCSkills

Need help? Email yilin.jing@rescience.com or open an issue.

Happy automating! 🚀