github/github-mcp-server · error

failed to resolve authorization server URL: %v

Error message

failed to resolve authorization server URL: %v

What it means

Error "failed to resolve authorization server URL: %v" thrown in github/github-mcp-server.

Source

Thrown at pkg/http/oauth/oauth.go:129

	}
}

func (h *AuthHandler) metadataHandler() http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		ctx := r.Context()
		resourcePath := resolveResourcePath(
			strings.TrimPrefix(r.URL.Path, OAuthProtectedResourcePrefix),
			h.cfg.ResourcePath,
		)
		resourceURL := h.buildResourceURL(r, resourcePath)

		var authorizationServerURL string
		if h.cfg.AuthorizationServer != "" {
			authorizationServerURL = h.cfg.AuthorizationServer
		} else {
			authURL, err := h.apiHost.AuthorizationServerURL(ctx)
			if err != nil {
				http.Error(w, fmt.Sprintf("failed to resolve authorization server URL: %v", err), http.StatusInternalServerError)
				return
			}
			authorizationServerURL = authURL.String()
		}

		metadata := &oauthex.ProtectedResourceMetadata{
			Resource:               resourceURL,
			AuthorizationServers:   []string{authorizationServerURL},
			ResourceName:           "GitHub MCP Server",
			ScopesSupported:        SupportedScopes,
			BearerMethodsSupported: []string{"header"},
		}

		auth.ProtectedResourceMetadataHandler(metadata).ServeHTTP(w, r)
	})
}

// routesForPattern generates route variants for a given pattern.

View on GitHub (pinned to 0ea1f775a7)

When it happens

Trigger: Thrown at pkg/http/oauth/oauth.go:129 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of github/github-mcp-server@0ea1f775a7 (2026-08-15). Data as JSON: /api/errors/cf663c6613aeb43c. Report an issue: GitHub.