Top 8 Extensions Apps, Compared (Oct 2026)
Independent extensions app ranking from live install data — quick answer, comparisons and FAQ.
This guide covers 8 extensions tools you can run yourself. No seat fees. No lock-in. Pick an app, we size the server for you.
8 Extensions apps at a glance
Ranked by real installs on PickYour.App · updated Oct 2026.
| # | App | Category | Installs | From |
|---|---|---|---|---|
| 1 | O OpenClaw Skills 5,400+ curated skills for OpenClaw agents | Extensions | 84 000 | €0.018/hr |
| 2 | C Context7 Up-to-date library docs for coding agents | Extensions | 52 000 | €0.023/hr |
| 3 | G GBrain Agent brain for OpenClaw & Hermes | Extensions | 42 000 | €0.023/hr |
| 4 | P Playwright MCP Browser automation tools for AI agents | Extensions | 36 000 | €0.023/hr |
| 5 | G GitHub MCP Server Give your agents secure GitHub access | Extensions | 24 000 | €0.018/hr |
| 6 | S Supabase MCP Connect agents to Supabase projects | Extensions | 12 000 | €0.018/hr |
| 7 | S Stripe Agent Toolkit Payments & billing tools for agents | Extensions | 980 | €0.018/hr |
| 8 | C Cloudflare MCP MCP gateway for Cloudflare services | Extensions | 860 | €0.018/hr |
Best Extensions apps, reviewed
OpenClaw Skills
OpenClaw Skills covers the essentials without demanding a manual. Plan for 1 vCPU and 1 GB of RAM. Most people start here.
- Does: the core extensions job.
- Runs on: 1 vCPU · 1 GB RAM · 15 GB — about €0.018/hr on Pay as you go.
Context7
The core loop is what Context7 does best. Spec: 1 vCPU, 2 GB RAM, 25 GB disk. Some teams prefer this one.
- Does: the core extensions job.
- Runs on: 1 vCPU · 2 GB RAM · 25 GB — about €0.023/hr on Pay as you go.
GBrain
Teams pick GBrain when they need the basics done well. Plan for 1 vCPU and 2 GB of RAM. Climbing steadily.
- Does: the core extensions job.
- Runs on: 1 vCPU · 2 GB RAM · 25 GB — about €0.023/hr on Pay as you go.
Playwright MCP
Built around its core job, Playwright MCP stays out of your way. Plan for 1 vCPU and 2 GB of RAM. Climbing steadily.
- Does: the core extensions job.
- Runs on: 1 vCPU · 2 GB RAM · 25 GB — about €0.023/hr on Pay as you go.
How we ranked these apps
Stars are cheap. Installs are not — someone picked a spec, paid for hours and got it running.
What it costs to run
The software is free. You only pay for the server. Peak spec in this list: 1 vCPU / 2 GB, near €0.023/hour. Pausing stops the meter. Small apps run for cents a day.
Which Extensions app should you pick?
- You want the safe bet? OpenClaw Skills — the most installed pick here.
- You prefer the lighter option? Context7 — a close second, some teams like it more.
- Tight budget? OpenClaw Skills runs on 1 vCPU / 1 GB — the cheapest server here.
- Not sure yet? Install the leader, try it for an hour, pause the server. You pay cents.
Free software, not free servers
Open-source means no licence fee. The server is the only bill.
Check the app page for RAM and disk needs before you start.
Verdict
OpenClaw Skills is the one to start with, with Context7 as the alternative. The server is ready in about a minute.
Frequently asked questions
What is the best extensions app?
OpenClaw Skills leads this category on PickYour.App. The core loop is what OpenClaw Skills does best. It runs comfortably on 1 vCPU / 1 GB here.
Can I use these tools for free?
Yes. Every app here is open-source. You only pay for the server — from €0.018 per hour, and pausing stops the meter.
How much does a extensions server cost?
About €0.023/hour for the biggest spec in this list. Smaller apps run on less.
Which one is easiest to start?
OpenClaw Skills — it needs the smallest server (1 vCPU / 1 GB). The install wizard sets it up in one click.
Ready to self-host?
Pick an app, we handle the server, domain and HTTPS.
Generated 2026-10-22 from live catalog data · all guides