GranularConnectors
Let your AI agent use Gmail, Slack, Notion, Stripe and more, plus your own MCP servers. Connect each once and every Claude, Codex or Gemini chat can use it.
Updated 2026-10-20
Connectors let Granular's agents work in your other apps: read your Gmail, post in Slack, update a Notion page or look up a payment in Stripe. You connect each app once in Settings → Connectors, and from then on every chat can use it.
A connector gives the agent a set of actions in that app, such as "search emails" or "create an issue". The agent uses them while it works, the same way it uses the terminal and your files, and every action shows up in the chat.
Under the hood, connectors use MCP (Model Context Protocol), a common standard that lets an AI agent talk to other apps. You don't need to know anything about it to use them.
Where connectors live
- Click the Settings button.
- Click Connectors.
The screen has four tabs:
| Tab | What's in it |
|---|---|
| Connected | Apps and built-in connectors you've connected. |
| This computer | Connections Granular found in your other AI tools, such as your Claude account's connectors or servers you set up in Claude Code. |
| Custom | Connectors you added yourself with ＋ Custom connector. |
| ＋ Discover apps | Everything you can still connect, grouped by category. |
The Search connectors… box at the top searches every tab at once.
The four kinds of connector
Connected apps
More than 1,400 apps, including Gmail, Google Calendar, Google Drive, Slack, HubSpot and Canva. You find them in Discover apps and click Connect. Your browser opens so you can sign in to the app, or paste an API key for apps that use one. These are run by Composio, Granular's integration partner, so you'll see Composio's name on the sign-in page.
Connected apps come with safety controls: you choose whether agents can only read, can also write, or can do everything, and Granular can ask you before it sends or deletes anything. They need you to be signed in to your Granular account.
See Connect an app and App permissions.
Built-in connectors
Granular's own connectors for Notion, Linear, GitHub, Slack, Higgsfield, Asana, Sentry, Stripe, Vercel and Cloudflare. Most sign in through your browser; GitHub and Slack use a token you paste. Their sign-ins are stored encrypted on this computer.
See Built-in connectors.
This computer
If you already use Claude, Claude Code, Codex or the Gemini CLI, you may have connected apps there. Granular finds them and lists them under This computer, so your agents can use them too. You manage the connection itself in the tool where you set it up; in Granular you can switch each one on or off.
Custom connectors
For anything that isn't in the list: a server that runs on your computer, a remote server with a token, any tool with an MCP address you sign in to in your browser, or a tool you register through Claude Code. Click ＋ Custom connector at the top of the screen.
See Custom connectors.
Which models can use which connectors
Granular runs chats on Claude, Codex or Gemini. Most connectors work with all three:
| Connector | Claude | Codex | Gemini |
|---|---|---|---|
| Connected apps | Yes | Yes | Yes |
| Built-in connectors | Yes | Yes | Yes |
| Custom connectors you add as your own server or remote tool | Yes | Yes | Yes |
| Your Claude account's connectors | Yes, on a Claude sign-in | With the Bridge | With the Bridge |
| Claude Code servers | Yes | With the Bridge | With the Bridge |
| Claude in Chrome | Yes, on a Claude sign-in | No | No |
| Codex's own apps and servers | No | Yes | No |
| Gemini's own servers and extensions | No | No | Yes |
The Bridge lets Codex and Gemini use a connector that only Claude can reach, by asking your own Claude on this computer to do the work. See Bridge to every model.
One switch per connector
Every connector has one On switch. When it's on, every chat can use it; when it's off, no chat can, and your sign-in stays saved. The switch in a chat's + menu, under Connectors, is the same switch, so turning a connector off in one chat turns it off everywhere.
To keep a connector out of some projects, set Available in on its card. See Connector accounts.
To point the agent at one specific app or account in a message, type @ and pick it. See Connectors in chat.
What a connector can see
- A connector can only do what the account you connected is allowed to do, within the access you approved when you signed in.
- Anything the agent reads through a connector becomes part of that chat's conversation with the AI model you're using.
- Every action the agent takes in an app appears in the chat, named by app, action and, where Granular can tell, the account.
- Granular doesn't charge for connectors. The apps you connect may have their own plans and limits.
Limits
- Each connector's actions take up some of the room the AI model has for a conversation. With many large connectors on, a smaller model can run out of room; switch off the ones you don't need. See Connectors in chat.
- Connectors you add as built-in, custom or This computer connections stay on this computer. Your connected apps' on/off and permission settings follow your Granular account.