# Welcome

Welcome to FastRouter.AI!

### **Introduction to FastRouter Gateway**

FastRouter.ai is a robust LLM Gateway that acts as a control plane for managing and routing requests across multiple language models and providers. It offers scalability, reliability, and fine-grained control for enterprise and developer workloads.

### **What is an LLM Gateway?**

An LLM Gateway sits between your application and various large language model (LLM) providers. It handles request routing, observability, cost tracking, error fallback, performance optimization, and credential management—enabling developers to abstract provider differences and optimize usage.

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### Jump right in

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Explore Features</strong></td><td>Learn how FastRouter helps you scale and optimize your LLM usage</td><td></td><td></td><td><a href="explore-features/quickstart">quickstart</a></td></tr><tr><td><strong>API Reference</strong></td><td>Dive directly into request formats, supported models, error responses, and more</td><td></td><td></td><td><a href="broken-reference">Broken link</a></td></tr><tr><td><strong>Integrations</strong></td><td>Guides to integrate FastRouter with your favorite tools</td><td></td><td></td><td><a href="integrations">integrations</a></td></tr></tbody></table>