{"message":"Free Models API - Filter free AI models from OpenRouter","version":"1.0.0","endpoints":{"free_models":"/api/free-models","free_models_by_category":"/api/free-models?category=programming","category_route":"/api/category/{category}/free-models","free_model_names":"/api/free-models/names","specific_model":"/api/free-models/{model_id}","supported_categories":"/api/categories","health":"/health"},"description":"This API fetches models from OpenRouter and filters for free models (prompt=0, completion=0)"}