# Klucznik **Source:** https://www.startuphub.ai/startups/klucznik **Profile type:** Startup > Polish API gateway for Claude, GPT, and Gemini with a single key and consistent format. ## About Klucznik provides a unified API gateway for accessing leading AI models like Claude, GPT, and Gemini. It offers a single API key and a consistent data format, simplifying integration for developers. The service allows payments in Polish Zloty and provides VAT-OSS invoices for business expenses. ## Key facts - **Slug:** klucznik - **Website:** https://klucznik.ai - **Operating status:** Active - **Sectors / tags:** API Platform, Foundation Model, Large Language Model, Generative AI, AI Infrastructure, Developer Tools ## Frequently asked ### What does Klucznik do? Klucznik provides a unified API gateway for accessing leading AI models like Claude, GPT, and Gemini. It offers a single API key and a consistent data format, simplifying integration for developers. The service allows payments in Polish Zloty and provides VAT-OSS invoices for business expenses. ### What industry does Klucznik operate in? Klucznik operates in API Platform, Foundation Model, Large Language Model, Generative AI, AI Infrastructure, Developer Tools. ## JSON-LD Structured data aligned with this page's `