Introduction

Learn what InferXgate is and why you should use it for your LLM infrastructure.

What is InferXgate?

InferXgate is a high-performance LLM Gateway built in Rust that provides a unified OpenAI-compatible API interface for multiple LLM providers. It enables developers to use different LLM providers (Anthropic Claude, Google Gemini, OpenAI, Azure OpenAI) through a single API while providing cost optimization, analytics, caching, and enterprise features.

Why Use InferXgate?

The Problem

When building AI applications, teams often face these challenges:

  • Multiple API keys: Managing separate API keys and SDKs for each provider
  • Inconsistent APIs: Each provider has a slightly different API format
  • No cost visibility: Difficulty tracking and optimizing LLM spending
  • No caching: Repeated queries hit the API every time, increasing costs and latency
  • Provider lock-in: Switching providers requires significant code changes

The Solution

InferXgate solves these problems by acting as a unified gateway:

  • One API for all providers: Use the standard OpenAI SDK format with any provider
  • Intelligent caching: Redis-powered caching reduces costs by 60-90%
  • Real-time analytics: Track usage, costs, and performance in a dashboard
  • Easy provider switching: Change providers by updating a model name
  • Enterprise features: Rate limiting, authentication, and load balancing built-in

Key Features

FeatureDescription
OpenAI-Compatible APIDrop-in replacement for OpenAI SDK
Multi-Provider SupportAnthropic, OpenAI, Gemini, Azure
Intelligent Caching60-90% faster responses with Redis
Cost TrackingPer-request cost calculation
Load BalancingRound-robin, least-latency, least-cost
AuthenticationJWT, API keys, OAuth support
Rate LimitingSliding window rate limiting
Prometheus MetricsBuilt-in observability

Architecture Overview

┌─────────────────────────────────────────────────────────────┐
│                      Your Application                        │
│                    (OpenAI SDK / REST)                       │
└──────────────────────────┬──────────────────────────────────┘
                           │
                           ▼
┌─────────────────────────────────────────────────────────────┐
│                       InferXgate                             │
│  ┌─────────┐  ┌─────────┐  ┌─────────┐  ┌─────────────────┐ │
│  │  Auth   │  │  Cache  │  │ Router  │  │  Load Balancer  │ │
│  └─────────┘  └─────────┘  └─────────┘  └─────────────────┘ │
│  ┌─────────────────────────────────────────────────────────┐ │
│  │                   Analytics & Metrics                   │ │
│  └─────────────────────────────────────────────────────────┘ │
└──────────────────────────┬──────────────────────────────────┘
                           │
          ┌────────────────┼────────────────┐
          ▼                ▼                ▼
   ┌──────────┐     ┌──────────┐     ┌──────────┐
   │ Anthropic│     │  OpenAI  │     │  Gemini  │
   └──────────┘     └──────────┘     └──────────┘

Performance

InferXgate is built in Rust for maximum performance:

  • Under 5ms latency overhead: Minimal processing delay
  • 10,000+ requests/second: High throughput capacity
  • 60-90% faster with caching: Redis-powered response caching
  • Connection pooling: 10 persistent connections per host

Open Source

InferXgate is 100% free and open-source under the AGPL-3.0 license. You can:

  • Self-host with all features at no cost
  • Modify the code to suit your needs
  • Contribute improvements back to the community

Next Steps

Ready to get started? Check out these guides: