Add Multiple Grok OAuth Accounts

Yes. I checked the current OpenCode/xAI situation, and you can use multiple Grok OAuth accounts, but I would not rely on OpenCode's built-in xAI connection to manage them yet.

OpenCode officially supports logging into xAI using your Grok/X Premium subscription through OAuth. Their current docs say an X Premium or Grok plan that includes Grok API access can be used without an XAI_API_KEY. [Image omitted from import]OpenCode+1

For your specific situation, where you have several X Premium accounts and want all of them available in OpenCode, there is a dedicated plugin called opencode-multi-xai. It was made specifically for this. [Image omitted from import]GitHub

It supports:

• Multiple X / Grok OAuth accounts

• Each account keeps its own subscription quota

• Manual switching between accounts

• Priority ordering

• Automatic rotation when an account encounters a recoverable limit/error

• Per-account quota/plan information

• Grok 4.x and Grok Build models

• A small account-management TUI

The architecture would basically be:

OpenCode
   │
   ▼
Grok Multi-Account provider
   │
   ├── X Premium Account 1
   ├── X Premium Account 2
   ├── X Premium Account 3
   └── X Premium Account 4
             │
             ▼
          xAI API

The plugin creates a separate OpenCode provider called:

xai-multi

instead of replacing your normal xai provider. [Image omitted from import]GitHub

So you could actually keep:

xai
    ↳ your normal Grok OAuth

xai-multi
    ↳ X account A
    ↳ X account B
    ↳ X account C

How you would use it

Since you're on Windows, I'd probably use Git Bash for the installation because the project's quick installer is Bash-based.

Bashgit clone https://github.com/zane-tv/opencode-multi-xai.git
cd opencode-multi-xai

npm install
npm run setup

The repository also provides an installer that wires the provider into OpenCode automatically. [Image omitted from import]GitHub

After installation you can run:

Bashop-xai tui

You'll get an account manager.

Press:

a

to add an account using device OAuth.

Then log into:

X Premium Account #1

Repeat:

a

and log into:

X Premium Account #2

and so on.

Alternatively:

Bashop-xai add

can be run repeatedly.

To see them:

Bashop-xai list

To see quota information:

Bashop-xai limits --probe

To manually switch:

Bashop-xai switch --index 1

The plugin can also automatically rotate accounts when the active one encounters a recoverable failure. [Image omitted from import]GitHub

One thing I'd be careful about

This is a third-party OpenCode plugin, not an official xAI/OpenCode feature. It stores the OAuth credentials locally in:

~/.config/opencode/multi-xai-accounts.json

The developer explicitly warns not to commit this file because it contains authentication tokens. [Image omitted from import]GitHub

The repository is also relatively small at the moment, so I'd treat it more cautiously than an official OpenCode integration.

For your situation

If you have, say:

X Account A → Premium
X Account B → Premium
X Account C → Premium
X Account D → Premium

and each account actually has Grok API entitlement, then yes, this is pretty much exactly what you're looking for.

You could have OpenCode use Grok as normal and maintain a pool of your X Premium OAuth accounts rather than logging out and logging into another X account every time you hit the individual account's allowance.

One important distinction is that each X account needs its own eligible Grok entitlement. Having Premium on Account A doesn't transfer quota to Account B. OpenCode's documentation explicitly says the subscription needs to include Grok API access. [Image omitted from import]OpenCode

Given that you were already using Grok 4.6 in OpenCode earlier, I'd keep your existing working xAI OAuth untouched first, install xai-multi alongside it, and test with two of your X accounts before adding the rest. That way there is essentially no downside if the plugin behaves strangely with your current OpenCode version.