GitHub Copilot Enterprise adapter

[dyamon]

After turning this PR into a plugin extension, I feel like this is stable enough to share with the community.

This adapter adds support for GitHub Copilot Business/Enterprise plans.

Simply install as a CodeCompanion dependency, e.g., with lazy:

{
    "olimorris/codecompanion.nvim",
    dependencies = {
        "dyamon/codecompanion-copilot-enterprise.nvim"
        -- other plugins...
    }
}

At this point, if your organization is available at https://acme.ghe.com

require("codecompanion").setup({
  adapters = {
    http = {
      copilot_enterprise = function()
        local adapter = require 'codecompanion.adapters.http.copilot_enterprise'
        adapter.opts.provider_url = "acme.ghe.com" -- 'https://' can be removed but doesn't hurt.
        return adapter
      end,
    },
  },
  strategies = {
    chat = {
      -- Setup the custom adapter for each strategy. You can change default models as usual.
      -- See https://codecompanion.olimorris.dev/configuration/adapters.html#changing-the-default-adapter
      -- and https://codecompanion.olimorris.dev/configuration/adapters.html#changing-a-model
      adapter = {
        name = "copilot_enterprise",
        model = "claude-sonnet-4",
      },
    },
    inline = {
      adapter = "copilot_enterprise",
    },
    cmd = {
      adapter = "copilot_enterprise",
    },
  },
})

@olimorris your call if you want to include the link somewhere in the docs.

[olimorris]

Thanks for sharing @dyamon!

[johnknl]

@dyamon This seems to be what I need. I already have vscode setup for my company's copilot subscription. CC works, but I can't select the models (eg Claude Sonnet 4). Where do I find the information needed to configure this adapter? Specifically the provider url. There's nothing in settings.json

[dyamon]

Hey @johnknl, I recently found out that what I'm supporting with this plugin is known as "GitHub Enterprise Cloud with Data Residency". If your company is using this service, that means they have a <company>.ghe.com custom URL. This is the same one you used to setup VSCode (when you first login to access Copilot it asks you if you want to connect with github.com or a GHE.com URL). That's the provider URL.

If, on the other hand, to connect to VSCode Copilot Chat you used github.com then this extension is not what you need (and you should probably use the stock copilot adapter).

[johnknl]

That's interesting, I do not think this is the case. We just log into github and use org SSO. Just the stock copilot adapter works, I can use eg GPT-5, but in vscode I have sonnet 4, in cc I have not. Just started exploring cc, perhaps I have something misconfigured then.

[johnknl]

Actually never mind, I have either been suffering from temporary blindness, or it started showing up after I configured as default in the strategies (and still there after I remove that default). Probably the former.

Sorry for wasting your time but thanks for replying.

[dyamon]

No trouble, happy coding :)

[sameert89]

Well the adapter no longer works, it has something to do with code companion not calling the enterprise URLs, dyamon/codecompanion-copilot-enterprise.nvim#1

any alternative solutions?

[pavelgood]

@sameert89 You may try my plugin/workaround pavelgood/codecompanion-copilot-enterprise.nvim

[james-gour]

@olimorris any plans to have this be native to codecompanion? I love using codecompanion, and I'm thinking lots of folks will have a github copilot enterprise account through their companies!

[olimorris]

There have been many attempts to introduce this via a PR that people gave up on. I can't tell if it's a case of just changing the URL or anything more complex - unfortunately I don't use the enterprise version. But would welcome a PR or some documentation on how users can make use of it.