Justin McKelvey

Justin McKelvey

Fractional CTO · 15 years, 50+ products shipped

• AI for Business • 6 min read •

Claude Plugins for Business (2026): What They Are and Where They Run

Claude plugins: the short answer

A Claude plugin is one install that bundles skills, connectors and sub-agents, so Claude shows up already set up for a job, like sales, finance or legal work. As of September 2026, plugins are on every paid Claude plan (Pro, Max, Team, Enterprise) at no extra charge. They run in Claude chat, Cowork and Claude Code. Two things just changed: Salesforce in Claude launched in beta on September 15, and a developer portal for submitting plugins to Claude's directory opened on September 25.

Everything below is from Anthropic's help center, release notes, launch posts and pricing page, read on September 27, 2026.

What a Claude plugin actually is

Three building blocks, one package:

  • Skills: the instructions for how to do a specific job your way. The written checklist you'd give a new hire.
  • Connectors: the pipes into your tools. Google Drive, Gmail, Slack, DocuSign, Salesforce, and many more.
  • Sub-agents: helpers Claude can hand parts of a bigger task to.

Before plugins, you wired each of those up by hand. A plugin ships them together, so Anthropic's help center puts it as "a ready-to-go setup from your first conversation instead of configuring each piece yourself." In Claude Code, a plugin can also carry commands, hooks, agents and language servers, which matters to developers and not much to anyone else.

If you've read my posts on Claude connectors or how to use Claude Skills, a plugin is those two things with a bow on them.

Where Claude plugins run

Surface What works there
Claude chat (web, and the Chat tab in Claude Desktop) Skills, commands, bundled connectors. Hooks, sub-agents and local MCP servers show grayed out.
Claude Cowork Everything, including hooks, sub-agents and local MCP servers. You can also ask Claude to customize an installed plugin here.
Claude Code (terminal) The full plugin, running on your computer. Plugins sync from your Claude account when you sign in (version 2.1.273 or later). They don't sync if you sign in with an API key or run Claude Code on Amazon Bedrock.

Plugins you add are saved to your account, not your laptop, so they follow you across all three. One detail for IT: in Cowork, connectors reach your services through Anthropic's cloud, not your local network. A custom connector has to point at a server that's reachable from the public internet. More on Cowork itself in Claude Cowork.

What Claude plugins cost

Nothing on top of the plan. Anthropic's help center says "Plugins are available to all paid plans (Pro, Max, Team, Enterprise)," and the pricing page has no plugin line item. The ladder, as of September 27, 2026:

  • Free: $0. Can connect apps and tools, but plugins aren't included.
  • Pro: $20 a month, or $17 a month billed annually.
  • Max: from $100 a month.
  • Team: standard seats $20 a seat billed annually, $25 monthly.
  • Enterprise: $20 a seat plus usage at API rates.

Two costs that aren't zero. First, what a plugin does draws from the same usage pool as everything else you do in Claude, so a plugin that runs long tasks spends your limits faster. Second, a partner plugin can need the partner's product. Salesforce in Claude assumes you run Salesforce. Anthropic publishes no price for the plugins themselves, no fee for the developer portal and no revenue share for developers. The plan-by-plan breakdown is on Claude AI pricing.

How to install one

  1. In Claude, open Customize in the left sidebar. (In Cowork, open the Cowork tab first.)
  2. Go to the Plugins tab, then Discover.
  3. Pick a plugin and click Add.
  4. Type "/" or click "+" in a conversation to see the skills it brought with it.

Where they come from: Anthropic adds a Knowledge Work marketplace by default, and you can add its Financial Services, Legal and Life Sciences marketplaces, or any GitHub repo (public GitLab and Bitbucket repos work too). The help center says the library covers sales, finance, legal, marketing, HR, engineering, design, operations and data analysis. There's also a plugin called Plugin Create that walks you through building your own.

The Salesforce plugin (beta since September 15)

This is the first big partner plugin, and it shows where this is heading. Salesforce in Claude brings a seller's accounts, opportunities and pipeline into Claude with 37 pre-built sales skills, plus Salesforce and Slack connectors. What it does, per Anthropic's launch post:

  • A morning brief: today's meetings, deals closing soon, at-risk opportunities, unread threads. On Fridays it wraps the week and drafts an update for the seller's manager.
  • Call prep from Salesforce, Slack and email, including stakeholders who aren't in the CRM yet.
  • Deal review against the team's sales method, with a draft business case and close plan.
  • After each call, a follow-up email, a Slack summary and draft CRM updates.
  • An interactive pipeline dashboard you can share with leadership.

The guardrails are the part I'd show a sales manager. Claude reads only what the seller's Salesforce permissions allow, and by default it asks the seller to approve each change before writing it. Anthropic says 7,000 Salesforce sellers use it. Availability is narrower than the plugin list suggests: beta on all paid Claude plans, but only for organizations Salesforce approves through its beta sign-up, with an admin requesting access through AgentExchange.

The Plugin Developer Portal (September 25)

If you or a vendor you work with builds tools, this is the new front door. Per Anthropic's announcement:

  • Open to developers on paid Claude plans.
  • Two ways in: point it at a single remote MCP server, or submit a GitHub repo containing a plugin bundle.
  • Every submission is validated and safety-scanned automatically. You see review status and recommended changes, and you choose when to publish once approved.
  • Live plugins get analytics: installs by product surface and version, listing views, and the searches that led people to the listing.

Anthropic also says one discovery experience for plugins will roll out across Claude and Claude Code over the coming weeks, and existing skills, connectors and plugins in the directory don't need changes. For an owner, the practical meaning is simple: the software you already pay for is going to show up in Claude as a plugin, and it's worth asking your vendors when.

Team and Enterprise: sharing and control

  • Sharing: once an owner turns it on, members can share a plugin they built with specific colleagues (Team and Enterprise) or with groups (Enterprise only). Recipients can use it but not edit it. Plugins added from a marketplace can't be shared.
  • Publish to org: a member can submit a plugin to the organization's library, offered as available to install, installed by default, or required. Owners can require review first.
  • Security scanning: Enterprise plans can turn on skill and plugin scanning (beta since August 6, 2026), which blocks plugins with malicious content and flags risky ones.

A caution Anthropic prints itself: a plugin's local MCP server runs on your computer "with the same permissions as any other program you run." Install from sources you trust, and on Team, decide who's allowed to publish before someone publishes.

What an owner can do with plugins this week

  1. Install one Anthropic-built plugin for the job that eats your week. Sales, finance or operations. Run it on real work for five days before adding a second.
  2. If you run Salesforce, get on the beta. Your admin requests access through AgentExchange. Start with the morning brief; it runs on a schedule and shows you quickly whether the rest is worth rolling out.
  3. Turn the process you keep re-explaining into your own plugin. Plugin Create walks you through it. On Team, publish it to the org so everyone runs the same version.
  4. Ask your software vendors about their Claude plugin. The portal opened September 25, and the directory is where their plugin will show up.

My take: plugins matter less for what's in the directory today and more for what they fix, which is the setup. Most teams I work with don't fail at Claude because the model is weak. They fail because nobody wired the tools, wrote the skills or decided who can publish what. That wiring is the Claude for Small Business install I do, from $4,500 in about two weeks: connectors, a skill pack and training, set up once for the whole team.

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Frequently Asked Questions

What are Claude plugins?
A Claude plugin is a package that bundles skills, connectors and sub-agents so Claude is set up for a role or workflow from the first conversation, instead of you configuring each piece. Anthropic calls plugins the main way third-party developers extend Claude. A plugin can be as small as a single remote MCP connector or a full bundle of connectors and skills; in Claude Code, a bundle can also carry commands, hooks, agents and language servers.
Are Claude plugins free?
There's no separate charge. As of September 2026, Anthropic's help center says plugins are available on all paid plans: Pro ($20 a month, $17 billed annually), Max (from $100), Team and Enterprise. They aren't on the Free plan, though Free can connect apps and tools. Anthropic publishes no price for plugins themselves; what you use through them draws from your plan's normal usage limits. A partner plugin can still require the partner's own product, like a Salesforce org for Salesforce in Claude.
Where do Claude plugins run?
In chat on the web, the Chat tab in Claude Desktop, and Claude Cowork. Plugins are saved to your account, so they also sync to Claude Code in the terminal when you sign in with the same account (version 2.1.273 or later). Skills and commands work in all of those places. Hooks, sub-agents and local MCP servers run only in Cowork and Claude Code, so they show grayed out in chat.
What is the Salesforce plugin for Claude?
Salesforce in Claude, launched in beta on September 15, 2026, is a plugin built with Salesforce that brings a seller's accounts, opportunities and pipeline into Claude with 37 pre-built sales skills: a morning brief, call prep, deal review and close plans, post-meeting CRM updates, and pipeline dashboards. It reads only what the seller's Salesforce permissions allow and, by default, asks for approval before writing any change. It's in beta on all paid Claude plans for organizations Salesforce approves through its beta sign-up; an admin requests access through AgentExchange and connects Salesforce once for the organization.
What is the Claude plugin developer portal?
Launched September 25, 2026, it's where developers on paid Claude plans submit plugins to the Claude directory. You either point it at a remote MCP server or submit a GitHub repo with a plugin bundle. Each submission is validated and safety-scanned automatically, you can track review status and feedback, you choose when to publish once approved, and live plugins get analytics on installs by product surface and version, listing views, and the searches that led to them. Anthropic's announcement names no submission fee.
Are Claude plugins safe to install?
Treat them like any software. Anthropic's help center warns that a plugin's local MCP server runs on your computer with the same permissions as any other program, and says to install only from sources you trust. Enterprise plans can turn on skill and plugin security scanning (in beta since August 6, 2026), which blocks plugins with malicious content and flags risky ones, and admins can restrict which plugins members can install.

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Justin McKelvey, Fractional CTO and AI consultant in Austin, TX

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Justin McKelvey

Fractional CTO & AI consultant in Austin, TX. 15 years building software, 50+ products shipped, $53M+ in client revenue generated. I help $1M–$50M founders ship production software and automate operations with AI — without hiring a full-time executive team.

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