Bring Your Own Token (BYOT) Tool Call Error

[bayudamar18]

I tried using BYOT. When I use the token and cloud ID from environment variables (ATLASSIAN_OAUTH_CLOUD_ID and ATLASSIAN_OAUTH_ACCESS_TOKEN), it works fine. However, when I try to connect using the token and cloud ID in the request header, it returns this error:

AttributeError: 'BYOAccessTokenOAuthConfig' object has no attribute 'client_id'

Is this error caused by a bug in the MCP server, or is it an issue with my MCP connection?

I’m connecting through a Next.js backend using @modelcontextprotocol like this:

const transport = new StreamableHTTPClientTransport(
  new URL(options.url as string),
  {
    token: 'Bearer mytoken',
    "X-Atlassian-Cloud-Id": mycloudid
  }
);

const client = new Client({
  name: `mcp-client-${serviceName}`,
  version: "1.0.0",
});
client.connect(transport);

[bayudamar18]

Solved.
on dependencies.py I add code to detect if it a byot token or not

        oauth_config_for_user: OAuthConfig | BYOAccessTokenOAuthConfig

        is_byo_oauth = bool(os.getenv("ATLASSIAN_OAUTH_ACCESS_TOKEN") and os.getenv("ATLASSIAN_OAUTH_CLOUD_ID"))

        if is_byo_oauth:
            # For BYO OAuth config (user-provided tokens)
            logger.debug(
                f"get_confluence_fetcher: using user-provided token (BYOT) config"
            )
            oauth_config_for_user = BYOAccessTokenOAuthConfig(
                cloud_id=effective_cloud_id,
                access_token=user_access_token,
            )
        else:
          # For minimal OAuth config (user-provided tokens), use empty strings for client credentials
          logger.debug(
              f"get_confluence_fetcher: using user-provided token (OAuth) config"
          )
          oauth_config_for_user = OAuthConfig(
              client_id=global_oauth_cfg.client_id if global_oauth_cfg.client_id else "",
              client_secret=global_oauth_cfg.client_secret
              if global_oauth_cfg.client_secret
              else "",
              redirect_uri=global_oauth_cfg.redirect_uri
              if global_oauth_cfg.redirect_uri
              else "",
              scope=global_oauth_cfg.scope if global_oauth_cfg.scope else "",
              access_token=user_access_token,
              refresh_token=None,
              expires_at=None,
              cloud_id=effective_cloud_id,
          )

                is_byo_oauth = bool(os.getenv("ATLASSIAN_OAUTH_ACCESS_TOKEN") and os.getenv("ATLASSIAN_OAUTH_CLOUD_ID"))
                if is_byo_oauth:
                    logger.debug(
                        f"get_confluence_fetcher: using user-provided token (BYOT)"
                    )
                    return ConfluenceFetcher(config=user_specific_config)
                else:
                  user_confluence_fetcher = ConfluenceFetcher(config=user_specific_config)
                  current_user_data = user_confluence_fetcher.get_current_user_info()
                  # Try to get email from Confluence if not provided (can happen with PAT)
                  derived_email = (
                      current_user_data.get("email")
                      if isinstance(current_user_data, dict)
                      else None
                  )
                  display_name = (
                      current_user_data.get("displayName")
                      if isinstance(current_user_data, dict)
                      else None
                  )
                  logger.debug(
                      f"get_confluence_fetcher: Validated Confluence token. User context: Email='{user_email or derived_email}', DisplayName='{display_name}'"
                  )
                  request.state.confluence_fetcher = user_confluence_fetcher
                  if (
                      not user_email
                      and derived_email
                      and current_user_data
                      and isinstance(current_user_data, dict)
                      and current_user_data.get("email")
                  ):
                      request.state.user_atlassian_email = current_user_data["email"]
                  return user_confluence_fetcher