Title Ox Alpha Free fails with "Endpoint is unavailable" when OpenCode uses tools

I am using OpenCode with the Ox Alpha Free model.
The model works for normal conversation, but when OpenCode tries to use a tool, the request fails with:
Error from provider (Console): Upstream request failed:
Endpoint is unavailable.
This happened while OpenCode was working on an NVGT project and attempted to execute a shell command:
& "C:\nvgt\nvgt.exe" -c server.nvgt 2>&1 | Select-Object
The problem is not an NVGT error. OpenCode does not receive the tool result because the Ox Alpha provider request itself fails with "Endpoint is unavailable."
Steps to reproduce
1.
Open OpenCode.
2.
Select Ox Alpha Free.
3.
Open a coding project.
4.
Ask the model to perform a task that requires a tool, such as running a shell command.
5.
Allow OpenCode to execute the tool.
6.
The request fails with Endpoint is unavailable.
Actual behavior
The tool call fails and OpenCode reports:
Error from provider (Console): Upstream request failed:
Endpoint is unavailable.
The model cannot receive the command output and therefore cannot continue the task.
Expected behavior
Ox Alpha Free should successfully handle the tool call and return the tool result to OpenCode so the model can continue working.
Additional information
This appears to happen specifically when Ox Alpha Free is used through OpenCode and a tool call is involved.
Normal model interaction can work, but tool execution fails with the upstream endpoint error.
I have retried the request, but the same error occurs.
Environment
•
OS: Windows 11
•
Client: OpenCode
•
Model: Ox Alpha Free
•
Tool: Shell / command execution
•
Project: NVGT game development
Error
Upstream request failed: Endpoint is unavailable.