What Is ClawHub? OpenClaw's Extension Marketplace

Introduction

OpenClaw's base installation is deliberately lean. The core package gives you the gateway, the agent runtime, the memory system, and a handful of essential built-in Skills. Everything beyond that lives in an ecosystem of community-built extensions discoverable through ClawHub — the central marketplace for OpenClaw Skills.

Think of ClawHub as the App Store for your AI agent. It's where developers publish their Skills and where users discover, evaluate, and install new capabilities. The breadth of what's available — integrations with thousands of services, automation patterns for hundreds of use cases, productivity tools for dozens of professional workflows — is what makes OpenClaw genuinely powerful out of the box for most real-world needs.

What Is ClawHub?

ClawHub is a web-based marketplace and command-line registry for OpenClaw Skills. It serves two functions simultaneously: a discovery interface for users browsing for Skills to install, and a distribution mechanism for developers publishing Skills they've built.

Each listing on ClawHub includes the Skill name and description, the publisher's identity and verification status, install count and community ratings, the source code (all Skills on ClawHub are open source), compatibility notes, configuration requirements, and changelog history. This information is designed to help users make informed installation decisions.

ClawHub was developed alongside OpenClaw as a community platform and is maintained by the OpenClaw Foundation. It began as a loose collection of community-shared GitHub repositories and evolved into a structured marketplace as the project's adoption accelerated. The vetting and moderation processes are still maturing — a fact that has led to significant security incidents (covered below).

Popular Skills on ClawHub

The most-installed Skills on ClawHub reveal a lot about what the community uses OpenClaw for most. The top categories by install count:

Productivity & Communication (Top Category): Gmail and Google Calendar integrations top the list. The ability to have OpenClaw read emails, draft responses, check calendars, and send meeting invites autonomously is one of the most commonly cited reasons for adopting the platform. Notion, Linear, and Todoist Skills round out the productivity category.

Browser Automation: A Playwright-based browser control Skill sits in the top five. This gives the agent eyes and hands on the web — able to navigate to any URL, extract information, fill forms, click buttons, and take screenshots. It's the foundation for an enormous number of community automation projects.

Development Tools: GitHub Skills for managing issues, reviewing PRs, and triggering deployments are widely used among developer-heavy adopters. The Kubernetes monitoring Skill and the Docker management Skill have become standards in the "self-healing server" use case.

Financial Data: Skills connecting to Alpaca (stock trading), Binance and Coinbase (crypto), and Yahoo Finance (market data) enable the financial monitoring use cases that many community members highlight. These range from simple price alerts to complex technical analysis pipelines.

Smart Home: Home Assistant integration is one of the most popular Skills in the consumer segment. It connects OpenClaw to the entire Home Assistant ecosystem — giving the agent natural language control over smart lights, thermostats, locks, sensors, and every other connected device in the home.

How to Install from ClawHub

ClawHub installation integrates with OpenClaw's CLI. The process is designed to be simple:

# Search for Skills by keyword
openclaw skill search calendar

# View details about a specific Skill before installing
openclaw skill info calendar-google

# Install a Skill
openclaw skill install calendar-google

# Check what Skills you have installed
openclaw skill list

# Update all installed Skills
openclaw skill update --all

After installation, most Skills require configuration. The openclaw skill info command displays required configuration parameters. You'll typically add these to a skills section of your config.yaml:

skills:
  calendar-google:
    credentials_file: "./credentials/google.json"
    default_calendar: "primary"

Some Skills handle their authentication flow interactively on first run — they'll guide you through OAuth consent screens or API key entry. Read each Skill's documentation carefully before first use, particularly for Skills that involve financial accounts, email, or system access.

Security Concerns & Vetting

The ClawHub security situation is the single most important thing to understand about using the marketplace. In early 2026, security researchers conducted a systematic analysis of ClawHub's catalog and found that approximately 12% of published Skills contained malicious code. The types of attack ranged from passive data collection to active credential theft.

Several patterns characterized the malicious Skills found:

• Legitimate-sounding names and descriptions: A "Telegram Enhanced Notifications" Skill that also exfiltrated the host machine's ~/.ssh directory to a remote server. A "Calendar Sync Pro" Skill with a hidden keylogger.
• Crypto drainers in financial Skills: Several cryptocurrency-adjacent Skills modified outgoing transaction data to replace wallet addresses with the attacker's address.
• Backdoor remote access: Some Skills established persistent connections to remote servers, giving attackers ongoing access to the host machine through the OpenClaw process's permissions.

The OpenClaw Foundation responded by implementing an enhanced review process for new submissions and retroactively auditing existing listings. Malicious Skills were removed. A verified publisher badge was introduced for developers who have completed identity verification. But the review process remains partly manual and cannot guarantee that all listings are safe.

Your protection framework: always read a Skill's source code before installing it. Skills are short — rarely more than a few hundred lines. Look for any code that accesses files outside the OpenClaw directory, makes outbound network calls to domains not related to the Skill's stated function, or reads environment variables containing sensitive credentials. If you can't read JavaScript, consider using only Skills from the Foundation's own official collection or from verified publishers with strong community reputations.

Contributing Your Own Skills

The Skills ecosystem grows through community contributions. If you've built a Skill that solves a problem others likely share, publishing it on ClawHub benefits the entire community and establishes your reputation as an OpenClaw developer.

To publish a Skill:

1. Build and test your Skill locally following the Skills development documentation
2. Create a GitHub repository with the required manifest file (skill.json), source code, documentation, and license
3. Submit the repository URL to ClawHub through the developer portal
4. The Foundation's review process (currently takes 1–5 days) checks the code for obvious security issues
5. Once approved, the Skill appears in ClawHub's catalog

Good Skills that fill genuine gaps in the ecosystem attract significant install counts quickly. The community actively discusses and shares useful Skills across the Discord and community forums, giving quality contributions organic distribution.

The Future of ClawHub

The OpenClaw Foundation's 2026 roadmap includes significant improvements to ClawHub, driven by the security incidents of early 2026 and the growing enterprise interest in the platform:

Automated security scanning: Integration with static analysis tools to flag common malicious code patterns before manual review. This won't catch everything, but it will significantly reduce the incidence of low-sophistication attacks.

Enhanced publisher verification: Stricter identity verification for publishers and cryptographic signing of Skill packages, allowing users to verify that an installed Skill's code hasn't been tampered with.

Foundation-curated collections: Officially endorsed Skill packs for specific use cases (the "Enterprise Security Bundle," the "Developer Productivity Pack"), with each Skill having undergone full source code review by Foundation staff.

Enterprise Skill registry: A private, self-hosted version of ClawHub for organizations that want to distribute internally developed Skills to their employees without exposing them to the public registry.

Wrapping Up

ClawHub is the ecosystem layer that transforms OpenClaw from a framework into a platform. The breadth and quality of community Skills available today means most users can find integrations for their specific needs without writing a single line of code. But this power comes with responsibility. The Skills you install are executable code with privileged access to your machine. Treat every installation as a security decision, read source code before installing, and stay with verified publishers when handling sensitive workflows.