fal-reve-mcp-server

The server handles API keys robustly by checking for `FAL_KEY` environment variable and providing an error message if missing, rather than crashing. Local file writing for generated images is protected by sanitizing filenames and creating directories safely, mitigating path traversal. The `downloadImage` function fetches images from URLs provided by the FAL AI API. While the URLs are not directly user-controlled in this flow, a theoretical (though unlikely) risk of Server-Side Request Forgery (SSRF) could exist if the FAL AI service itself were compromised to return malicious internal network URLs. No 'eval' or other highly dangerous dynamic code execution patterns are observed. The `cost_class` and `avg_tokens_per_call` refer to the textual input/output between the MCP client and this server, not the underlying (and potentially higher) cost of the FAL AI image generation itself.