Error: Failed to process events: request config: base url is not set

[mendesbarreto]

Description

I am trying to use opencode with copilot but I am receiving the follwoing message

---

I tried the follwoing installation methods:

go install github.com/opencode-ai/opencode@latest
#AND
brew install opencode-ai/tap/opencode 

This is my machine specs

Model: MacBook Pro
Chip: Apple M1 Max
Total Number of Cores: 10 (8 performance and 2 efficiency)
Memory: 64 GB
OS: Sequoia 15.5

Config File:

{
  "data": {
    "directory": ".opencode"
  },
  "providers": {
    "anthropic": {
      "apiKey": "your-api-key",
      "disabled": true
    },
    "copilot": {
      "apiKey": "<HERE IS MY GITHUB TOKEN>",
      "disabled": false
    },
    "groq": {
      "apiKey": "your-api-key",
      "disabled": true
    },
    "openai": {
      "apiKey": "your-api-key",
      "disabled": true
    },
    "openrouter": {
      "apiKey": "your-api-key",
      "disabled": true
    }
  },
  "lsp": {
    "go": {
      "enabled": false,
      "command": "gopls",
      "args": null,
      "options": null
    },
    "typescript": {
      "enabled": false,
      "command": "vtsls",
      "args": [
        "--stdio"
      ],
      "options": null
    }
  },
  "agents": {
    "coder": {
      "model": "claude-3.7-sonnet",
      "maxTokens": 5000,
      "reasoningEffort": ""
    },
    "task": {
      "model": "claude-3.7-sonnet",
      "maxTokens": 5000,
      "reasoningEffort": ""
    },
    "title": {
      "model": "claude-3.7-sonnet",
      "maxTokens": 80,
      "reasoningEffort": ""
    }
  },
  "tui": {
    "theme": "opencode"
  },
  "shell": {
    "path": "/bin/zsh",
    "args": [
      "-l"
    ]
  },
  "autoCompact": true
}

---

FYI:

@bryanvaz I know implemented the copilot provider, maybe you can point me on the right direction here...

I am trying to debug opencode, and it's seems like when coilot provider tries to call the openai.Client, the base URL is not set here:

opencode/internal/llm/provider/copilot.go

Line 405 in 4427df5

copilotStream := c.client.Chat.Completions.NewStreaming(

[bryanvaz]

The error you posted is not possible in the copilot codepath, so I'm not sure how you created it.

I'm sorry, the feature is experimental, so if you cannot debug the issue yourself, I can't really help you.

If you'd like to dig into the issue yourself, I'd recommend three things before you start:

1. Build from the latest commit on main on Github (at least b9bedba)
2. Install one of the officially supported IDE plugins for Github Copilot Chat, login and ensure you can use it in the IDE for the given model (VSCode and Neovim are the ones that I have personally confirmed work, gh and Jetbrains should also create the token correctly)
3. Run opencode in debug logging mode via OPENCODE_DEV_DEBUG="true" opencode -d. This will log to the working directory's .opencode/debug.log and request/response data to .opencode/messages

[nickjvandyke]

In my case, my .zshrc set $GITHUB_TOKEN to one without Copilot access, and it seems opencode prefers that over the Copilot-available token I set at providers.copilot.apiKey. unset GITHUB_TOKEN temporarily fixed it.

It would be nice if opencode prioritized the token in its config - my $GITHUB_TOKEN is already configured according to other needs. But maybe that'd have other pitfalls I'm not aware of.

[mendesbarreto]

The error you posted is not possible in the copilot codepath, so I'm not sure how you created it.

I'm sorry, the feature is experimental, so if you cannot debug the issue yourself, I can't really help you.

If you'd like to dig into the issue yourself, I'd recommend three things before you start:

Thank you so much for the quick response.

1. Build from the latest commit on main on Github (at least b9bedba)

I am debugging from the latest main commit, the message I've showed on my issue is also from the main =). What I could see already is that this error about the baseURL is comming from the openai sdk itself.

2. Install one of the officially supported IDE plugins for Github Copilot Chat, login and ensure you can use it in the IDE for the given model (VSCode and Neovim are the ones that I have personally confirmed work, gh and Jetbrains should also create the token correctly)

My copilot is working in both VScode and Neovim plugin

3. Run opencode in debug logging mode via OPENCODE_DEV_DEBUG="true" opencode -d. This will log to the working directory's .opencode/debug.log and request/response data to .opencode/messages

Nice, I will enable this and will try it. As it is a lot of code to cover and to get used to it I will need time ahahahah, I was wondering if you could think of something maybe is the cause of the problem, If not don't mind me.

[mendesbarreto]

In my case, my .zshrc set $GITHUB_TOKEN to one without Copilot access, and it seems opencode prefers that over the Copilot-available token I set at providers.copilot.apiKey. unset GITHUB_TOKEN temporarily fixed it.

It would be nice if opencode prioritized the token in its config - my $GITHUB_TOKEN is already configured according to other needs. But maybe that'd have other pitfalls I'm not aware of.

Thank you so much.

I tried to unset the GITHUB_TOKEN, but i still getting this error:

I unset the GITHUB_TOKEN This is my env command output:

Now I will go with the debug mode and see if I can find something =)

[seanf]

In my case, my .zshrc set $GITHUB_TOKEN to one without Copilot access, and it seems opencode prefers that over the Copilot-available token I set at providers.copilot.apiKey. unset GITHUB_TOKEN temporarily fixed it.

Thank you for the tip!

It would be nice if opencode prioritized the token in its config - my $GITHUB_TOKEN is already configured according to other needs. But maybe that'd have other pitfalls I'm not aware of.

The usual rule is to prioritise env vars over config files, but in this case it does cause a problem.

The real issue is that there are lot of tokens floating around under the name GITHUB_TOKEN, and they're not all Copilot-related. In some projects I work on, GITHUB_TOKEN needs to be a scope-limited token for reading GitHub Packages.

I think it would help if OpenCode looked for a different token name, eg GITHUB_COPILOT_TOKEN, to avoid the conflict.

[johhansantana]

I'm getting the same error message with a clean install from brew.

I opened with opencode typed something and gave me the base url is not set error.

this is my opencode.json file

{
  "data": {
    "directory": ".opencode"
  },
  "providers": {
    "openrouter": {
      "apiKey": "api-key-here",
      "disabled": false
    }
  },
  "agents": {
    "coder": {
      "model": "gemini/gemini-2.5-pro",
      "maxTokens": 4000,
      "reasoningEffort": ""
    },
    "task": {
      "model": "gemini/gemini-2.5-pro",
      "maxTokens": 4000,
      "reasoningEffort": ""
    },
    "title": {
      "model": "gemini/gemini-2.5-flash",
      "maxTokens": 80,
      "reasoningEffort": ""
    }
  },
  "tui": {
    "theme": "opencode"
  },
  "shell": {
    "path": "/bin/bash",
    "args": [
      "-l"
    ]
  },
  "autoCompact": true
}

UPDATE

The only way I got it working was to have anthropic as the first provider

{
  "data": {
    "directory": ".opencode"
  },
  "providers": {
    "anthropic": {
      "apiKey": "your-api-key",
      "disabled": false
    }
  },
  "agents": {
    "coder": {
      "model": "claude-3.7-sonnet",
      "maxTokens": 5000,
      "reasoningEffort": ""
    },
    "task": {
      "model": "claude-3.7-sonnet",
      "maxTokens": 5000,
      "reasoningEffort": ""
    },
    "title": {
      "model": "claude-3.7-sonnet",
      "maxTokens": 80,
      "reasoningEffort": ""
    }
  },
  "tui": {
    "theme": "opencode"
  },
  "shell": {
    "path": "/bin/zsh",
    "args": [
      "-l"
    ]
  },
  "autoCompact": true
}

[seanf]

@johhansantana So 'unset GITHUB_TOKEN' didn't work?

[johhansantana]

nope. I tried unset GITHUB_TOKEN, checked to see if my .zshrc has it but none is there by that name either.

I added into the providers the copilot object and set disabled to true but now I get:

Error: provider copilot is not enabled

even though I have the openrouter one enabled it seems to be wanting to use copilot either way.

[mendesbarreto]

MORE UPDATES

So far, the method exchangeGitHubToken that is calling a copilot internal endpoint is responding with 404 error:

opencode/internal/llm/provider/copilot.go

Line 59 in f0571f5

req, err := http.NewRequest("GET", "https://api.github.com/copilot_internal/v2/token", nil)

Failed to exchange GitHub token for Copilot bearer token" error="token exchange failed with status 404: {\"message\":\"Not Found\",\"documentation_url\":\"https://docs.github.com/rest\",\"status\":\"404\"}

I can't find any documentation about this internal endpoint on github. So I printed the request in a curl format and, tried on terminal:

curl -X GET "https://api.github.com/copilot_internal/v2/token" -H "Authorization: Token <MY GITHUB_TOKEN>" -H "User-Agent: OpenCode/1.0"

and the error is the same:

My token is valid because I am using currently for a bunch of operation + I am testing copilot with avante.nvim and it's working =( .

I will keep digging in, step by step ahahahaha.

[mendesbarreto]

I encountered the same issue, but I've managed to resolve it. After troubleshooting, I believe the root cause is that, like me, many of us were misled by the documentation. The documentation suggests obtaining the GitHub Copilot token via gh auth token after executing gh auth login. However, based on my tests, gh auth login does not generate the app.json or hosts.json files in the ~/.config/github-copilot/ directory. The oauth_token we need actually comes from these app.json or hosts.json files.

Here's what we need to do:

1. Install the GitHub Copilot plugin for Vim.
2. Open Vim and perform OAuth authorization login using the command :Copilot setup.
3. Set the copilot.apiKey in the configuration file to an empty string or to the value of the oauth_token from the app.json or hosts.json file located in the ~/.config/github-copilot/ directory.
4. Start OpenCode.
5. Ensure that the GITHUB_TOKEN environment variable is either empty or set to the value of the oauth_token from the app.json or hosts.json file located in the ~/.config/github-copilot/ directory.

Thank you for your response.

After some debugging, I found the problem and a solution. Having to unset my GITHUB_TOKEN is really annoying because I use it for other tasks. I created a fix in my fork LINK that works without needing to UNSET it.

I think opencode really needs to move away from using GITHUB_TOKEN, it can be very misleading, as personal or business tokens don't work with copilot requests.

We have PR(#294) open and it might fix this issue, I added some comments there, let see if the maintainer will merge when it's done.

[mihailmariusiondev]

Just confirming: is there currently any reliable way to use GitHub Copilot with OpenCode?

I'm trying to make it work from WSL (Ubuntu), where Copilot works fine in VSCode. However, OpenCode fails with failed to process events: request config: base url is not set.

I haven't been able to extract a ghu_... token from WSL. I only have access to a standard ghp_... GitHub token, which OpenCode doesn't accept. There's no ~/.config/github-copilot/hosts.json on my system either, even with the Copilot extension installed in WSL.

This is the config I’m trying (not working):

{
  "data": {},
  "providers": {
    "copilot": {
      "apiKey": "ghp_xxx", // standard token — does NOT work
      "disabled": false
    }
  },
  "agents": {
    "coder": {
      "model": "copilot.claude-sonnet-4",
      "maxTokens": 8000
    }
  },
  "tui": {
    "theme": "opencode"
  },
  "shell": {
    "path": "/bin/bash",
    "args": ["-l"]
  },
  "autoCompact": true
}

Should we wait for PR #294 to be merged before expecting Copilot to work reliably with OpenCode? Or is there any current method that actually works from WSL or headless environments?

Thanks a lot for the hard work on this tool, looking forward to a stable Copilot integration.