Locus product guide · Updated November 10, 2026

Best Claude Code plugins in 2026, by install count

The most-installed Claude Code plugins on Anthropic's marketplace on November 10, 2026 were frontend-design (about 1.13 million installs), superpowers (1.01 million), code-review (439,000), context7 (418,000), code-simplifier (347,000), playwright (320,000) and github (319,000). Install one with /plugin install name@claude-plugins-official. Check its context cost in the plugin details first, since every plugin adds tokens to each turn.

Which Claude Code plugins are most popular?

Install counts below come from claude.com/marketplace/plugins on November 10, 2026. Descriptions come from Anthropic's official marketplace file. All of these install from claude-plugins-official.

Which Claude Code plugins are most popular?
Plugin	Job	What it adds	Installs
frontend-design	Front-end UI	Guidance for distinctive, production-grade interfaces	1,134,112
superpowers	Working method	Brainstorming, subagent-driven development, systematic debugging and red/green TDD	1,009,371
code-review	Pull request review	Several review agents with confidence scores to filter false positives	438,525
context7	Library docs	Hosted Context7 MCP server for version-specific docs	417,801
code-simplifier	Cleanup	An agent that simplifies recently changed code	346,763
playwright	Browser testing	Microsoft's Playwright MCP server	319,887
github	Repos and pull requests	GitHub's official MCP server	319,381
claude-md-management	Project memory	Audits CLAUDE.md and captures session learnings	287,247
feature-dev	Feature work	Agents for codebase exploration, architecture design and quality review	256,017
security-guidance	Security	Warnings on edits, a diff review when Claude stops and a commit reviewer	241,800
typescript-lsp	Code intelligence	TypeScript and JavaScript language server	212,522
ralph-loop	Long tasks	Repeats one task, with its previous work in view, until done	196,527
commit-commands	Git	Commands to commit, push and open a pull request	171,244
chrome-devtools-mcp	Browser debugging	Live Chrome control, network and console checks, performance traces	102,569
serena	Code navigation	Semantic code analysis through language servers	89,147

What is a Claude Code plugin?

A plugin bundles skills, agents, hooks, commands, and MCP and LSP servers into one install. A plain MCP server only adds tools. A plugin can also add the instructions that tell Claude when to use them.

Claude Code adds Anthropic's official marketplace, claude-plugins-official, the first time you start an interactive session. Its marketplace file listed 317 plugins on November 10, 2026. The claude.com plugin directory showed 530. Anthropic also runs a community marketplace, claude-community, and does not review third-party marketplaces.

How do you install a Claude Code plugin?

Run /plugin install with the plugin and marketplace names, for example /plugin install commit-commands@claude-plugins-official. In a session this opens the plugin details instead of installing at once. The pane shows what it will install and, for official plugins, a context cost: tokens added to every turn and tokens added when its skills or agents load.

Then pick a scope. User scope turns it on in every project. Project scope writes it to .claude/settings.json for everyone in the repo. Local scope turns it on for you in this repo only. For plugins outside the official marketplace, run /plugin marketplace add owner/repo first.

From a shell or setup script: claude plugin install name@marketplace.
Plugins you have not used lately show under Not used recently in the Installed tab, so you can remove them.
Official marketplace plugins update on their own. Community and third-party marketplaces do not, unless you turn it on.

Which plugins bring outside data into Claude Code?

The official marketplace has plugins from data vendors too. Most connect to an account, plan or API key at that vendor. Hunter, for example, asks for your Hunter API key, and Apollo spends your Apollo credits. Install counts are from claude.com on November 10, 2026.

Which plugins bring outside data into Claude Code?
Plugin	Data	Installs
firecrawl	Scraping, crawling and web search	39,279
exa	Web search, research and content extraction	5,255
Bright Data	Web scraping, Google search and structured extraction	3,155
zoominfo	Company and contact search, lookalikes	2,363
apollo	Prospecting, enrichment and sequences	1,462
hunter	Email finding and verification	758
tavily	Search, extract, crawl and research	403
lusha	B2B contacts and phone numbers	275

What does the Locus plugin add to Claude Code?

The Locus plugin installs the hosted Locus Pro MCP server and three skills: locus, locus-setup and locus-workflows. Claude can then find, price and call paid APIs from one prepaid credit balance, with no account or key at each vendor. Install it with /plugin marketplace add locus-technologies/locus-pro-plugin, then /plugin install locus@locus, and sign in through /mcp.

Search, describe and balance checks are free. 1,000 credits equal $1. The table shows live catalog prices. Prices checked November 10, 2026.

If you use one vendor every day, its own plugin on a plan can cost less. The Locus plugin fits agents that touch several vendors or use them now and then.

What does the Locus plugin add to Claude Code?
Job	Locus endpoint	Credits per call	Cost per call
Web search	firecrawl/search	1.7 fixed	$0.0017
Scrape a page	firecrawl/scrape	1 to 38.6, usually 1	Usually $0.001
Find people at a company	apollo/people-search	2 fixed	$0.002
Find a work email	hunter/email-finder	1 to 10.1	Up to $0.0101
Stock quote	alphavantage/global-quote	5.1 fixed	$0.0051

How do you choose Claude Code plugins?

Install few, check the cost, and remove what you stop using. A plugin can run hooks and MCP servers on your machine, so read the details pane before you install.

Check context cost. A plugin that adds many tokens every turn needs to earn them.
Avoid overlap. superpowers, feature-dev and Matt Pocock skills all shape how Claude plans and builds. Pick one method.
Prefer the official marketplace. Anthropic does not review third-party marketplaces.
Use project scope for plugins the whole team should share, and user scope for personal ones.
Add a language server plugin, such as typescript-lsp or pyright-lsp, for the languages you write.

Frequently asked questions

What is the difference between a Claude Code plugin and an MCP server?

An MCP server gives Claude tools. A plugin is a package that can hold MCP servers plus skills, agents, hooks and commands. Many plugins, such as context7 and github, are mostly a wrapped MCP server.

Are Claude Code plugins safe to install?

Treat them like any code you run. A plugin can start hooks and MCP servers on your machine. Read the details pane before installing, and prefer the official marketplace, since Anthropic does not review third-party marketplaces.

Do Claude Code plugins update automatically?

Plugins from claude-plugins-official and other official marketplaces update by default. Community, third-party and local marketplaces do not, unless you turn auto-update on for them.

How do I share a plugin with my team?

Install it at project scope. That writes the plugin to the repo settings file you commit. Each teammate still runs the install once per clone to download it.

Implementation references

Use these first-party references for current request contracts and account requirements. Tool availability, prices, and negotiated terms can change.

Sources

Third-party details were checked on November 10, 2026. Vendors change pricing and features often, so confirm on their site before you decide.