router-for-me/CLIProxyAPI · error

xai discovery %s host %q is not on x.ai

Error message

xai discovery %s host %q is not on x.ai

What it means

Error "xai discovery %s host %q is not on x.ai" thrown in router-for-me/CLIProxyAPI.

Source

Thrown at internal/auth/xai/xai.go:61

	return &XAIAuth{httpClient: util.SetProxy(&sdkCfg, &http.Client{Timeout: httpClientTimeout})}
}

// ValidateOAuthEndpoint validates an endpoint returned by xAI discovery.
func ValidateOAuthEndpoint(rawURL string, field string) (string, error) {
	rawURL = strings.TrimSpace(rawURL)
	if rawURL == "" {
		return "", fmt.Errorf("xai discovery %s is empty", field)
	}
	parsed, err := url.Parse(rawURL)
	if err != nil {
		return "", fmt.Errorf("xai discovery %s is invalid: %w", field, err)
	}
	if parsed.Scheme != "https" {
		return "", fmt.Errorf("xai discovery %s must use https: %q", field, rawURL)
	}
	host := strings.ToLower(strings.TrimSpace(parsed.Hostname()))
	if host != "x.ai" && !strings.HasSuffix(host, ".x.ai") {
		return "", fmt.Errorf("xai discovery %s host %q is not on x.ai", field, host)
	}
	return rawURL, nil
}

// Discover resolves xAI OAuth endpoints through OIDC discovery.
func (a *XAIAuth) Discover(ctx context.Context) (*Discovery, error) {
	if ctx == nil {
		ctx = context.Background()
	}
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, DiscoveryURL, nil)
	if err != nil {
		return nil, fmt.Errorf("xai discovery: create request: %w", err)
	}
	req.Header.Set("Accept", "application/json")
	resp, err := a.httpClient.Do(req)
	if err != nil {
		return nil, fmt.Errorf("xai discovery: request failed: %w", err)
	}

View on GitHub (pinned to 78f0c4079e)

Solutions

1. Point the discovery endpoint at an official x.ai host.
2. Reject custom or proxy hosts not under x.ai in configuration.

When it happens

Trigger: Thrown at internal/auth/xai/xai.go:61 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of router-for-me/CLIProxyAPI@78f0c4079e (2026-08-15). Data as JSON: /api/errors/b355044bdfc3432b. Report an issue: GitHub.