The Best ChatGPT Plugins for Small Businesses

Before you go hunting for the best ChatGPT plugins for small businesses, you need to know one thing: the plugins people wrote about in 2023 no longer exist. OpenAI stopped new plugin conversations on March 19, 2024 and shut the system down completely on April 9, 2024, according to a detailed account of the shutdown and what followed.

The word came back. The system didn’t. What you can install today falls into three layers, and knowing which layer you’re in saves a lot of wasted clicking.

That history matters because a lot of “best plugins” lists still recommend things that were switched off two years ago. This post covers what’s actually installable now, what each piece does for a small business, and which ones are worth your time if you’re running a shop with orders going out the door.

The Bottom Line

• The original plugins are gone. Today there are connectors (read your data), apps (take actions), and custom connectors via MCP (connect anything else).
• OpenAI retired the App Directory on July 9, 2026 and replaced it with a Plugin Directory covering skills, apps and app templates, so the terminology has come full circle.
• Start with three: a file connector (Google Drive or Microsoft 365), an email connector (Gmail or Outlook), and Zapier for everything without an official integration.
• Connectors read your real business content. A connector pointed at your price list is worth more than ten clever prompts.
• Skip anything that duplicates a tool you already open daily, and skip the novelty directory entries entirely.

What replaced ChatGPT plugins

The chain went like this. GPTs and the GPT Store arrived between November 2023 and January 2024 and took over the “extend ChatGPT” job. In 2025 OpenAI adopted the Model Context Protocol and introduced connectors for work data plus apps built on an Apps SDK. Then on July 9, 2026 the App Directory was retired and renamed the Plugin Directory, which now organizes skills, apps and app templates.

So the three layers, in plain terms:

• Connectors give ChatGPT read access to content you already have. Gmail, Google Drive, Microsoft 365, and business tools like HubSpot, Salesforce, Asana and Atlassian are among the integrations reported in the directory.
• Apps let ChatGPT take an action rather than just read. Canva was named as a launch partner for the Apps SDK.
• Custom connectors are MCP servers, for connecting a tool that has no official entry. This is more technical, and it’s how you’d reach an inventory or routing system that nobody has built an integration for.

If you only remember one distinction: connectors answer “what do my files say,” apps answer “now go do it.”

Which layer you need depends on what you’re trying to fix. If your problem is that writing takes too long, you may not need any of this — the marketing side is covered in easy ways to use ChatGPT for small business marketing, and almost all of it runs on a bare account. If your problem is hours lost to admin, ChatGPT for small business owners is the one to read, and that’s where connectors pay off hardest.

The connectors worth switching on first

A file connector: Google Drive or Microsoft 365

This is the first thing to turn on, because most of a small business lives in documents nobody can find. Your price list, your supplier terms, last year’s catering menu, the insurance certificate a client keeps asking for.

Pointed at your Drive, ChatGPT can answer questions from those files instead of from the open internet. “What did we quote Harbor Cafe in March?” becomes a question with an answer.

The practical catch is organization. A connector pointed at a messy drive gives messy answers. It’s worth thirty minutes of folder cleanup before you expect much.

An email connector: Gmail or Microsoft 365

Email is where small business context hides. A Gmail connector lets you ask for a summary of a long customer thread, pull out the open questions, and draft a reply that references what was actually agreed.

For anyone doing wholesale or standing orders, this is the highest-value connector on the list. Those threads run for months and nobody remembers what was promised in week three.

Google Calendar

Modest but useful. Once ChatGPT can see your week, scheduling questions stop being a chore: find the gap, prep the meeting notes, work out what has to happen before Thursday’s drop.

A CRM connector, if you already use a CRM

HubSpot and Salesforce are both reported among the available integrations. The honest caveat: this only helps if your CRM is current. A connector pointed at a CRM nobody has updated since spring will confidently tell you things that stopped being true in spring.

Zapier, for everything without an official integration

Zapier remains the standard answer for the long tail. It connects to thousands of apps, which means it reaches the tools small businesses actually run — the scheduling app, the POS, the invoicing tool nobody at OpenAI has heard of.

Use it for the repetitive handoffs: a new order creating a task, a form submission landing in a sheet, a summary posting into Slack.

One word of warning. Automation built on a tool you half understand breaks quietly. Build one zap, watch it for a week, then build the next.

Apps for design, documents and video

Canva

Named as an Apps SDK launch partner, Canva is the one design integration most small businesses will actually use. Describe what you need and get a draft layout for a flyer, a menu insert or a social graphic, then finish it in Canva proper.

Video and visual tools

Video is the format small businesses skip because it looks expensive. It mostly isn’t anymore. A browser-based tool like Visme’s video maker turns a script into a short promo without a camera or an editor, which pairs well with ChatGPT writing the script in the first place.

The workflow that works: ask ChatGPT for a 30-second script with four scene directions, then build those four scenes. Writing the script is the part that stops people, and it’s the part that’s now free.

QuickBooks and invoicing

For US businesses invoicing through QuickBooks Online, integration reportedly covers creating and sending invoices and estimates, recurring invoices, reminders and payment links from inside ChatGPT.

Treat this one with more care than the rest. Anything that touches money gets reviewed before it sends, every time. A misread figure in a draft caption costs nothing. A misread figure on an invoice costs a customer relationship.

Which ChatGPT plugins to skip

The directory rewards novelty, and novelty is mostly a waste of a small business owner’s attention. A short filter:

• Skip anything that duplicates a tool you open daily anyway. Going through ChatGPT to reach your calendar is slower than opening your calendar, unless you’re combining it with something else in the same breath.
• Skip single-purpose entries you’d use once a quarter. The setup cost exceeds the benefit.
• Skip anything that wants write access to your accounting or payment systems unless you’ve thought hard about who approves what.
• Skip the SEO and “growth hacking” entries. They tend to produce confident output with no way to check it.
• Be careful with anything summarizing a document you haven’t read. Useful for triage, dangerous for contracts.

Three connectors well configured beat twelve switched on and forgotten. That’s the whole recommendation.

A sensible setup order for a small business

Work down that list, not across it. Most owners who complain the tool “didn’t do much” turned on six things in an afternoon and configured none of them.

If you’re at the earlier stage of still deciding what the business is, the tooling can wait. The ChatGPT prompts for starting a small business are a better use of a first week than any integration on this page.