Quick Summary

• Claude Cowork released January 30, 2026, with a plugins marketplace launching February 24
• The marketplace includes 12 new MCP connectors for Google, DocuSign, Apollo, Clay, and more
• Install plugins in seconds via the Customize menu or CLI
• Build custom plugins using markdown files and Anthropic templates
• Enterprise teams get private marketplaces with admin controls

What Are Claude Cowork Plugins?

We tested the new Claude Cowork plugins and found them to be incredibly flexible bundles of functionality. A plugin packages together skills, connectors (MCP integrations), slash commands, and even sub-agents into a single installable unit.

Think of plugins as toolkits. When you install one, you're not just adding a single feature—you're bringing in an entire ecosystem designed to work together. For example, a sales plugin might include connectors to Apollo and Outreach, commands to search contacts, and AI agents specialized in pipeline analysis.

The key insight: plugins standardize how teams distribute AI capabilities. Instead of sharing individual connectors or having everyone configure tools separately, you publish a plugin once and teams install it everywhere.

Inside the Marketplace

The Claude Cowork marketplace launched February 24, 2026, and provides a central hub for discovering and installing plugins. We found the interface clean and discoverable—categories, ratings, and install counts make it easy to find what you need.

What impressed us most: you can browse without installing. Preview what a plugin includes, read how other users are leveraging it, and review permissions before committing. This transparency builds trust, especially for teams handling sensitive workflows.

The marketplace also surfaces trending plugins and personalized recommendations based on your team's usage patterns. If your colleagues are installing sales plugins, the marketplace suggests related productivity integrations.

How to Install Plugins

We tested the installation flow and can confirm it's streamlined. There are two main paths: the GUI and the CLI. Both get the job done in under 30 seconds.

GUI Installation

Click Customize in your Claude Cowork sidebar, then Browse plugins. Search by name or category, read the description and reviews, and click Install. Permissions are requested immediately, and once you approve, the plugin is live.

CLI Installation

If you prefer the terminal, run claude plugin marketplace add <plugin-id>. The CLI method is perfect for automation scripts or installing across multiple machines.

12 New MCP Connectors in the Marketplace

The marketplace debut brings 12 new Model Context Protocol connectors that previously weren't available. We tested several of them and were impressed by the depth of integration.

Communication & Collaboration

Google Calendar, Drive, and Gmail connectors let you read/write calendar events, browse files, and search email directly from Claude. Perfect for scheduling assistants or document research workflows.

Sales & Outreach

Apollo (prospect data), Clay (enrichment), and Outreach (engagement) connectors unify your go-to-market stack. We tested a workflow that pulled Apollo prospects, enriched with Clay, and logged activity to Outreach—all in one Claude session.

Document & E-Signature

DocuSign and LegalZoom bring document automation and legal workflows into Claude. We found this especially useful for contract review and template generation.

Intelligence & Analytics

Similarweb (web traffic), MSCI (ESG data), and FactSet (financial intelligence) connectors unlock market research at scale. We tested competitor analysis workflows—Claude pulled traffic data and financial metrics in minutes instead of hours.

Content & Publishing

WordPress and Harvey (AI lawyer platform) connectors add publishing and legal expertise. We used WordPress to publish analysis directly from Claude—no manual copy-paste required.

Building Your Own Plugins

We tested the plugin creation process and were surprised by how straightforward it is. You don't need to be a developer—plugins are markdown files that Claude's runtime interprets.

Two Paths to Create

Built-in Plugin Creator: Use the web interface in Claude Cowork. Click Customize > Create Plugin, and you get a markdown editor with instant live preview. This is best for simple plugins with 1–3 features.

Templates Approach: Anthropic provides templates on GitHub for common plugin types. Download a template, customize it in your editor, and submit to the marketplace or deploy privately. This route scales to complex plugins with multiple connectors and sub-agents.

Plugin Structure

Every plugin is a markdown file containing metadata (name, version, permissions) and declarations of skills, connectors, commands, and sub-agents. Claude parses this file and wires everything up automatically.

---
name: Sales Accelerator
version: 1.0.0
connectors:
  - apollo
  - clay
  - outreach
commands:
  - /prospect-profile
  - /pipeline-review
agents:
  - sales-analyst
---

Distribution Options

You can publish to the public marketplace or keep plugins private. Enterprise teams can use private GitHub repos as plugin sources—Anthropic's admin system pulls updates automatically.

Enterprise & Admin Controls

We reviewed the enterprise marketplace features and found them comprehensive. Administrators can set up private plugin marketplaces, control visibility, and manage team access with granular precision.

Admin Dashboard

Access the Customize menu to manage plugins organization-wide. You can restrict visibility to specific departments, auto-install plugins for teams, and define per-user provisioning rules.

Private Marketplaces

Create internal marketplaces where only vetted, company-built plugins appear. This prevents accidental installation of incompatible or risky plugins while enabling innovation internally.

Cross-App Orchestration

Plugins can orchestrate across Excel and PowerPoint. We tested a workflow where Claude read from Excel, ran analysis, and created a PowerPoint presentation—all triggered by a single plugin command.

Key Takeaways

• Plugins are standardized packages that bundle skills, connectors, commands, and agents—making complex workflows shareable and repeatable.
• The marketplace launched February 24 with 12 new MCP connectors spanning sales, communications, legal, and intelligence platforms.
• Installation takes under 30 seconds via the GUI or CLI, with one-time authentication for connectors.
• Build your own plugins using markdown files and Anthropic templates, then publish to public or private marketplaces.
• Enterprise admins control plugin visibility, auto-install for teams, and use private repos as plugin sources.
• Plugins orchestrate across Claude, Excel, and PowerPoint, enabling sophisticated multi-app workflows.

Frequently Asked Questions

Ready to Explore Plugins?

Head to Claude Cowork, click Customize, and browse the marketplace. Start with a connector that solves a real problem for you—then build or customize a plugin to fit your exact workflow.

The plugin ecosystem is still young, but it's already transforming how teams distribute and consume AI capabilities.