Unable to connect to GitHub MCP Server from within OpenCode

[ThomasCode92]

I'm trying to connect OpenCode to the GitHub MCP Server, but it appears the AI has no access to any GitHub-related tools.

🧱 Current Configuration

{
  "$schema": "https://opencode.ai/config.json",
  "instructions": [],
  "mcp": {
    "context7": {
      "type": "remote",
      "enabled": true,
      "url": "https://mcp.context7.com/mcp",
      "headers": {
        "CONTEXT7_API_KEY": "{env:CONTEXT7_API_KEY}"
      }
    },
    "github": {
      "type": "remote",
      "enabled": true,
      "url": "https://api.githubcopilot.com/mcp/",
      "headers": {
        "Authorization": "Bearer ${env:GITHUB_MCP_PATH}"
      }
    }
  }
}

✅ What Works

• The Context7 MCP connection works correctly.
  • Confirmed that environment variable injection ({env:CONTEXT7_API_KEY}) is functioning.

❌ What Doesn’t Work

• The GitHub MCP connection doesn’t seem to initialize.
• The AI has no access to any GitHub-related tools.

[agonic]

"github": {
"type": "local",
"command": [
"npx",
"-y",
"@modelcontextprotocol/server-github", "--GITHUB_PERSONAL_ACCESS_TOKEN", "github token"
],
"enabled": true
}

[alexaandru]

The local one works fine, when I try to use the remote mcp, I get: "Incompatible auth server: does not support dynamic client registration".

[thaihoangminh]

This works for me:

"github": {
      "type": "remote",
      "headers": {
        "Authorization": "Bearer <GitHub_PAT>"
      },
      "url": "https://api.githubcopilot.com/mcp/"
    },

[alexaandru]

That works for me too 🤦 Can't believe I forgot the authorization header...

For the OP: it works with {env:GITHUB_MCP_PATH} not ${env:GITHUB_MCP_PATH}.

[mynameistito]

The local one works fine, when I try to use the remote mcp, I get: "Incompatible auth server: does not support dynamic client registration".

Running into related issues, so this is an extension of this, it seems like Github is not allowing OpenCode to make dynamic client registrations when oauth is enabled.

> opencode mcp debug github --log-level DEBUG

T  MCP OAuth Debug
|
•  Server: github
|
•  URL: https://api.githubcopilot.com/mcp/
|
•  Auth status: ✗ not authenticated
|
o  HTTP response: 401 Unauthorized
|
•  WWW-Authenticate: Bearer error="invalid_request", error_description="No access token was provided in this request", resource_metadata="https://api.githubcopilot.com/.well-known/oauth-protected-resource/mcp/"
|
!  Server returned 401 Unauthorized
|
•  Testing OAuth flow (without completing authorization)...
|
x  Connection error: Incompatible auth server: does not support dynamic client registration
|
—  Debug complete

opencode.jsonc

"github": {
      "type": "remote",
      "url": "https://api.githubcopilot.com/mcp/",
      "headers": { "Authorization": "Bearer $KEY" },
      "enabled": true
    },

I am, however, facing related issues with the {env:OC_GITHUB_PAT} on the official GitHub MCP implementation currently falling back to @modelcontextprotocol/server-github on local.

Edit: This also creates a security Issue especially on Warp Terminal When tabs are split (when utilising @modelcontextprotocol/server-github)

[mynameistito]

Fixed Fixes: #1396

opencode.json

{
	"$schema": "https://opencode.ai/config.json",
	"mcp": {
		    "github-mcp": {
     			"type": "remote",
				"url": "https://api.githubcopilot.com/mcp/",
				"headers": {"Authorization": "Bearer {env:OC_GITHUB_PAT}"},
				"enabled": true
			}
	}
}

Add the code below to one of the following to your;

• ~/.zshrc - Unix
• ~/.bashrc - Unix
• $PROFILE - Powershell
  etc.

For this, I am going to explain PowerShell as that is what I use;

1. Run notepad $PROFILE in your Terminal.
2. Add the code below to the end of the file that is opened in your notepad.

$env:OC_GITHUB_PAT = "your_github_personal_access_token"

3. Save File
4. Run refreshenv in the Terminal.
5. Run $env:OC_GITHUB_PAT to verify output.

Expected Response: your_github_personal_access_token

Please Note: opencode mcp debug will show as non sucessful, but in the TUI will work as intended.

[cheuklcl]

@mynameistito i got a failed, it mean the token is wrong? i just push inside to opencode.json, it is correct? thank you
"headers": {"Authorization": "Bearer {env:ghp_xxxxxx}"},

DEBUG 2026-01-19T13:22:04 +284ms service=mcp key=github-mcp transport=StreamableHTTP url=https://api.githubcopilot.com/mcp/ error=Streamable HTTP error: Error POSTing to endpoint: bad request: Authorization header is badly formatted transport connection failed

DEBUG 2026-01-19T13:22:04 +58ms service=mcp key=github-mcp transport=SSE url=https://api.githubcopilot.com/mcp/ error=SSE error: Non-200 status code (400) transport connection failed

[mynameistito]

@mynameistito i got a failed, it mean the token is wrong? i just push inside to opencode.json, it is correct? thank you
"headers": {"Authorization": "Bearer {env:ghp_xxxxxx}"},

DEBUG 2026-01-19T13:22:04 +284ms service=mcp key=github-mcp transport=StreamableHTTP url=https://api.githubcopilot.com/mcp/ error=Streamable HTTP error: Error POSTing to endpoint: bad request: Authorization header is badly formatted transport connection failed

DEBUG 2026-01-19T13:22:04 +58ms service=mcp key=github-mcp transport=SSE url=https://api.githubcopilot.com/mcp/ error=SSE error: Non-200 status code (400) transport connection failed

Are you setting up the env var in your $profile or ~/.bashrc that could potentially be the issue.

Note: you want to set the {env:name} as the variables name not actual key.

[cheuklcl]

@mynameistito fixed thank you very much!!

[mynameistito]

@mynameistito fixed thank you very much!!

Glad you were able to get it fixed!

It might be good to put your solution to fix in the comments so if someone else runs into it the same thing, they can get have the knowledge to fix it too ☺️

[alexaka1]

According to the docs, the remote mcp should support oauth as well:

• https://github.com/mcp/github/github-mcp-server
• https://opencode.ai/docs/mcp-servers/#automatic

However with opencode I get this error:

$ opencode mcp auth github

┌  MCP OAuth Authentication
│
■  Authentication failed
│
■  Incompatible auth server: does not support dynamic client registration
│
└  Done

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "github": {
      "type": "remote",
      "url": "https://api.githubcopilot.com/mcp/",
      "enabled": true
    }
  }
}

[mynameistito]

According to the docs, the remote mcp should support oauth as well:

• mcp/github/github-mcp-server
• opencode.ai/docs/mcp-servers#automatic

However with opencode I get this error:

$ opencode mcp auth github

┌ MCP OAuth Authentication
│
■ Authentication failed
│
■ Incompatible auth server: does not support dynamic client registration
│
└ Done
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"github": {
"type": "remote",
"url": "https://api.githubcopilot.com/mcp/",
"enabled": true
}
}
}

Scroll up and checkout my comment: #1396 (comment)

That work's for me in the TUI itself however opencode mcp debug states otherwise.

[diego-sorribas]

Hey, I tried all the recommendations from the comments, but I still can’t get it to work. This is my config:

"github-mcp": {
    "type": "remote",
    "url": "https://api.githubcopilot.com/mcp/",
    "headers": {
        "Authorization": "Bearer {env:OC_GITHUB_PAT}"
    },
    "enabled": true
}

I added the environment variable:

echo $OC_GITHUB_PAT
github_pat_XX...

And I’m getting this error:

❯ opencode mcp debug github-mcp --log-level DEBUG

┌  MCP OAuth Debug
│
●  Server: github-mcp
│
●  URL: https://api.githubcopilot.com/mcp/
│
●  Auth status: ✗ not authenticated
│
◇  HTTP response: 401 Unauthorized
│
●  WWW-Authenticate: Bearer error="invalid_request", error_description="No access token was provided in this request", resource_metadata="https://api.githubcopilot.com/.well-known/oauth-protected-resource/mcp/"
│
▲  Server returned 401 Unauthorized
│
●  Testing OAuth flow (without completing authorization)...
│
■  Connection error: Incompatible auth server: does not support dynamic client registration
│
└  Debug complete

What could be the error here?

[vuon9]

Hey, I tried all the recommendations from the comments, but I still can’t get it to work. This is my config:

"github-mcp": {
    "type": "remote",
    "url": "https://api.githubcopilot.com/mcp/",
    "headers": {
        "Authorization": "Bearer {env:OC_GITHUB_PAT}"
    },
    "enabled": true
}

I added the environment variable:

echo $OC_GITHUB_PAT
github_pat_XX...

And I’m getting this error:

❯ opencode mcp debug github-mcp --log-level DEBUG

┌  MCP OAuth Debug
│
●  Server: github-mcp
│
●  URL: https://api.githubcopilot.com/mcp/
│
●  Auth status: ✗ not authenticated
│
◇  HTTP response: 401 Unauthorized
│
●  WWW-Authenticate: Bearer error="invalid_request", error_description="No access token was provided in this request", resource_metadata="https://api.githubcopilot.com/.well-known/oauth-protected-resource/mcp/"
│
▲  Server returned 401 Unauthorized
│
●  Testing OAuth flow (without completing authorization)...
│
■  Connection error: Incompatible auth server: does not support dynamic client registration
│
└  Debug complete

What could be the error here?

would you try if mcp is already working. In my case, debug shown me the error but the mcp actually works.

[diego-sorribas]

@vuon9 Thanks! You are right!