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PopNx MCPMCP servers for people who use AI · explained in plain words

PlugMCP directory

by plugmcp-aiversion 0.1.4i★ –iComputer or cloud
Registry nameai.plugmcp/directory

Install

Overview

Description from the maker (original English)

Search MCP servers and agent skills, compare them, and get install configs for your client.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Computer or cloud
  • Transport: stdio, Streamable HTTP
  • Category: Search & AI memory
  • You need to fill in: PLUGMCP_API_KEY, Authorization

Install

Pick the AI app you use, then copy the settings.

Before you install

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • Runs in the cloudNothing to install; it connects over the internet
  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "directory": {
      "command": "npx",
      "args": [
        "-y",
        "plugmcp-mcp"
      ],
      "env": {
        "PLUGMCP_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http directory https://plugmcp.ai/mcp-server --header 'Authorization: your-value'

Or run it on your computer

claude mcp add directory --env PLUGMCP_API_KEY=your-value -- npx -y plugmcp-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "directory": {
      "url": "https://plugmcp.ai/mcp-server",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "directory": {
      "command": "npx",
      "args": [
        "-y",
        "plugmcp-mcp"
      ],
      "env": {
        "PLUGMCP_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "directory": {
      "type": "http",
      "url": "https://plugmcp.ai/mcp-server",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "directory": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "plugmcp-mcp"
      ],
      "env": {
        "PLUGMCP_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • PLUGMCP_API_KEY secret env
    Optional pb_live_ key from https://plugmcp.ai/app. Without it: 50 calls a day per IP.
  • Authorization secret HTTP header
    Optional. Bearer pb_live_ key from https://plugmcp.ai/app.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • search_servers

    Find MCP servers by product name, publisher, or topic. Ranked by relevance (exact name, then publisher, then tags and description); the product's own server comes first when there is one (jira finds Atlassian's), duplicates merged. Returns compact cards with trust signals; call g

  • get_server

    Details for one server by slug: description, tools, auth, transport, health, packages, and links. include_readme adds the README (trimmed).

  • get_install

    The exact config or command to install one server in one client: Cursor, Claude Code, Claude Desktop, VS Code, Windsurf, ChatGPT, Codex, Gemini CLI, Grok Build, Grok Bot, or plain JSON. For Grok Bot the value is the message to send in its chat. Includes the config file path and a

  • list_categories

    Directory categories with listing counts. Use a slug as the category filter in search_servers.

  • whats_new

    Servers added to the directory recently, best first, plus health changes. Defaults to the last 7 days.

  • compare_servers

    Compare two to five servers side by side by slug: trust signals, auth, hosting, transport, tools count, license.

  • recommend_servers

    Describe what the user wants to do in plain words. Returns the best three servers, each with why it fits, auth, remote or local, health, and the install snippet for the client.

  • search_skills

    Find agent skills (SKILL.md packs for Claude Code, Cursor, Codex, Grok Build and Grok Bot) by name, publisher or topic. Call get_skill for the install command.

  • get_skill

    One skill by slug: what it does, where the SKILL.md lives, and the install command for Cursor, Claude Code, Codex and Grok Build, plus the chat message that installs it in Grok Bot. include_body adds the SKILL.md text (trimmed).

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain plugmcp.ai (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 215 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 9 tool descriptions and found no hidden instructions to the AI

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7229 servers in this category
  • Published to the registry more recently than 98% of the other 7229 servers in this category
  • Basic checks equal to or better than 100% of the other 7229 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is PlugMCP directory safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: PLUGMCP_API_KEY, Authorization

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.4) reached the registry yesterday.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated 3 days ago
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 44 days ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

plugmcp-mcp

One MCP server that finds the rest. Your agent searches 70,000+ MCP servers and agent skills, compares them, and gets the exact install config for your client.

Ask your agent

Once it is connected, ask in plain words:

  • "Find an MCP server that lets Cursor query my Postgres database, and install it."
  • "Compare the GitHub and GitLab MCP servers."
  • "What MCP servers came out this week?"
  • "Give me the Claude Code command for the Linear MCP server."
  • "Find an agent skill for editing PDFs and give me the message to install it in Grok Bot."

Install

The fastest path needs no install at all. The directory is a remote MCP server at:

https://plugmcp.ai/mcp-server

Use this package when your client only runs local (stdio) servers, or when you want the server in a lockfile.

Claude Code
claude mcp add --transport http plugmcp https://plugmcp.ai/mcp-server

or local:

claude mcp add plugmcp -- npx -y plugmcp-mcp

Cursor, Windsurf, Claude Desktop, and any mcpServers JSON
{

"mcpServers": { "plugmcp": { "command": "npx", "args": ["-y", "plugmcp-mcp"] } } }

VS Code (.vscode/mcp.json)
{

"servers": { "plugmcp": { "type": "http", "url": "https://plugmcp.ai/mcp-server" } } }

Codex CLI
codex mcp add plugmcp --url https://plugmcp.ai/mcp-server
Grok Bot

Grok Bot has no config file. Send this in a Grok Bot chat and confirm the card:

Add a custom MCP server called plugmcp at https://plugmcp.ai/mcp-server

Every Bot on your account gets it; attach it to a task with @. Then ask for any server or skill with grok-bot as the client, and the reply is the message that adds that one too.

Grok Build and grok.com
  • Grok Build: grok mcp add --transport http plugmcp https://plugmcp.ai/mcp-server
  • grok.com: open Connectors, choose New Connector, then Custom, and paste https://plugmcp.ai/mcp-server.
ChatGPT

Settings, then Connectors, then Add. Name plugmcp, URL https://plugmcp.ai/mcp-server.

API key (optional)

Every tier is paced, so one busy agent cannot use the whole day at once:

Per minutePer hourPer day
No key (per IP)51020
Free account key1560400
Paid plan key300no cap20,000

When a limit is hit, the tool result says which one and when it resets. Calls without a key may also wait while the directory is busy; key holders keep working. Create a pb_live_ key at plugmcp.ai/app and pass it as PLUGMCP_API_KEY:

{

"mcpServers": { "plugmcp": { "command": "npx", "args": ["-y", "plugmcp-mcp"], "env": { "PLUGMCP_API_KEY": "pb_live_..." } } } }

For the remote URL, send it as Authorization: Bearer pb_live_.... Details are in auth.md.

Tools

Every tool is read-only.

ToolWhat it does
search_serversKeyword search with filters for remote, official, and client
recommend_serversRanked picks for a task described in plain words
get_serverOne server: tools, auth, packages, health, and optionally the README
get_installThe exact config for Cursor, Claude Code, Claude Desktop, VS Code, Windsurf, ChatGPT, Codex, Gemini CLI, Grok Build, Grok Bot, or plain JSON
compare_serversSide by side for two to five servers
whats_newServers added recently
list_categoriesCategories with counts
search_skillsSearch agent skills (SKILL.md)
get_skillOne skill with install commands for Cursor, Claude Code, Codex, and Grok Build, plus the Grok Bot message

How it works

plugmcp-mcp is a small stdio server built on the official MCP TypeScript SDK. It forwards tools/list and tools/call to https://plugmcp.ai/mcp-server over Streamable HTTP. The upstream connection opens on the first call and reconnects after a network error. Nothing is stored locally.

VariableDefaultPurpose
PLUGMCP_API_KEYnoneOptional pb_live_ key
PLUGMCP_URLhttps://plugmcp.ai/mcp-serverDirectory endpoint

Develop

npm ci

npm test # build, then unit tests against an in-memory upstream npm run smoke # run the built server over stdio against plugmcp.ai

Release

Push a v* tag that matches package.json. The publish workflow runs the tests, publishes to npm (NPM_TOKEN secret), then publishes server.json to the MCP Registry as ai.plugmcp/directory, signed with the plugmcp.ai domain key (MCP_REGISTRY_PRIVATE_KEY secret).

Related

License

MIT

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