Extend

Name: Extend
Author: extend-hq

by extend-hqversion 1.0.0i★ 2iRuns in the cloud

Registry nameai.extend/extend

How to install

What it does

Turn documents into structured data: parse, extract, classify, split, and fill PDF forms.

Connects Runs in the cloud
Account or key Sign in to the service when you connect (OAuth)
Category Docs, sheets & office work

Install

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

Passed 4/4 checks · What you ask goes through the maker’s server (mcp.extend.ai) · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

Open Claude’s Connectors page
CustomizeConnectors
Done
Click “Add” → “Custom” → “Web” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameExtend
Remote MCP server URL · Addresshttps://mcp.extend.ai/mcp
Click Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add
Done
Turn it on in a chat
+ConnectorsExtend
Done
Try it
Use Extend and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Extend or shows a Extend tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT, depending on your plan

Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only

Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Done
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameExtend
Connection · Addresshttps://mcp.extend.ai/mcp
Done
Pick Extend in a chat
Start a new chat and pick Extend from your plugins before typing
Done
Try it
Use Extend and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using Extend or shows a Extend tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --transport http --scope user extend https://mcp.extend.ai/mcp

Done

Type /mcp in Claude Code
You should see Extend listed as connected
Done
Try it
Use Extend and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Extend or shows a Extend tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Extend and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Extend or shows a Extend tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Extend and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Extend or shows a Extend tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://mcp.extend.ai/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use Extend💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user extend https://mcp.extend.ai/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "extend": {
      "url": "https://mcp.extend.ai/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "extend": {
      "type": "http",
      "url": "https://mcp.extend.ai/mcp"
    }
  }
}

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

At a glance

GitHub stars i: 2
Downloads per weeki: Not on npm/PyPI
Verified domain: ✓ extend.ai
Licence i: MIT
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 1.0.0
Categoryi: Docs, sheets & office work
Published to registryi: Sep 3, 2026
Code last changedi: Nov 5, 2026
Maker: extend-hq
Repo: extend-hq/extend-agent-plugin
Website: docs.extend.ai
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

Claude ChatGPT Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

All apps, with pros and cons →

What it can do

The server asks you to sign in before it lists its tools.

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 14, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain extend.ai (the registry checks domain ownership)
✓ Pass
Still maintained
Code last changed 9 days ago
– Not applicable
Has a licence
Not applicable: a cloud server run by the owner of extend.ai; you don't run code from the repo
✓ Pass
Endpoint responds
Responded in 198 ms (HTTP 401)
✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Docs, sheets & office worki

More stars than 86% of the other 3911 servers in this category
Published to the registry more recently than 28% of the other 3911 servers in this category
Basic checks equal to or better than 100% of the other 3911 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 Extend safe?

It passed 4 of 4 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed 9 days ago, and the latest version (1.0.0) reached the registry 2 months ago.

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 on the web (full MCP on Business and above; Pro read-only).

What can I use instead?

In the same category: Puter MCP, XcodeBuildMCP, XcodeBuildMCP

Others in the same category

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

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

Puter MCP

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by HeyPuterWidely used★ 44.2KUpdated 5 months ago

Runs in the cloud✓ service owner · puter.com

How to connect

XcodeBuildMCP

XcodeBuildMCP provides tools for Xcode project management, simulator management, and app utilities.

by getsentryWidely used↓ 130.5K/wk shared package★ 6.6KUpdated 4 months ago

Runs on your computer✓ service owner · xcodebuildmcp.com

Install

XcodeBuildMCP

XcodeBuildMCP provides tools for Xcode project management, simulator management, and app utilities.

by cameroncookeWidely used↓ 130.5K/wk shared package★ 6.6KUpdated 14 months ago

Runs on your computer

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.

Extend Agent Plugin

Document processing for agents, packaged as a plugin. Extend turns unstructured documents (PDFs, images, Office files, spreadsheets) into structured data: parsing, field extraction, classification, splitting, PDF form filling, and multi-step document workflows.

This plugin bundles:

The hosted Extend MCP server (https://mcp.extend.ai/mcp): 80+ tools covering extraction, parsing, classification, splitting, PDF editing, workflows, files, webhooks, and evaluations. Sign-in is OAuth: your client opens a browser window where you choose the workspace and environment the connection may use. The server teaches its own cross-tool usage patterns through MCP server instructions and per-response guidance, so no companion skill is needed for it.
`extend-api` skill: a compact brief for agents writing integration code against the Extend API and SDKs: endpoints, schema rules, sync-vs-async patterns, webhooks, and error handling.
`extend-cli` skill: how to drive the extend CLI for shell, script, and CI work against local files.

The skills also install standalone, without the plugin:

npx skills add extend-hq/extend-agent-plugin

Install

Cursor: install "Extend" from the Cursor Marketplace, or load this repository from ~/.cursor/plugins/local/ for development.
Claude Code: claude plugin install extend once listed in the plugin directory, or add this repository as a plugin marketplace.
Any MCP client: you don't need the plugin to use Extend; connect directly to https://mcp.extend.ai/mcp (Streamable HTTP + OAuth). See the connection guide for per-client instructions.

Repository layout

Several manifest formats coexist so one repository serves every ecosystem:

Path	Purpose
`plugin.json`, `mcp.json`	Agent Plugins standard (any conformant client)
`.cursor-plugin/plugin.json`	Cursor plugin manifest (marketplace metadata and logo; shares `mcp.json`)
`.claude-plugin/plugin.json`, `.mcp.json`	Claude plugin manifest
`gemini-extension.json`	Gemini CLI extension manifest
`server.json`	Official MCP Registry entry (`ai.extend/extend`)
`skills/`	Agent Skills shared by every format
`assets/`	Logo referenced by the manifests

Privacy and terms

The MCP server calls the Extend API on your behalf under the workspace and environment you approve at sign-in. See Extend's privacy policy, terms, and security overview. Support: support@extend.ai.

License

MIT; see LICENSE. The license covers this plugin packaging; the Extend platform and hosted MCP server are Extend's commercial services.

Extend

What it does

Install

Open Claude’s Connectors page

Click “Add” → “Custom” → “Web” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick Extend in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Docs, sheets & office worki

Common questions

Others in the same category

Puter MCP

XcodeBuildMCP

XcodeBuildMCP

README from the maker

Extend Agent Plugin

Install

Repository layout

Privacy and terms

License