{
 "name": "Promptimizer (LangChain)",
 "slug": "promptimizer-langchain",
 "category": "llm-sdks-structured",
 "description": "Automatic prompt optimization tool.",
 "url": "https://github.com/hinthornw/promptimizer",
 "docs_url": "https://github.com/hinthornw/promptimizer",
 "auth": "none",
 "pricing": "free",
 "http_status": null,
 "last_checked_at": "2026-10-14",
 "status": "active",
 "category_name": "LLM SDKs & Structured Output",
 "swarmnest_url": "https://swarmnest.ai/directory/llm-sdks-structured/promptimizer-langchain/"
}