# AiGate — AI API Aggregation, Intelligent Routing & Billing Platform

> AiGate is a unified multi-tenant AI API gateway, intelligent model routing, and billing platform designed for developers, engineering teams, and commercial providers.

## Overview
AiGate provides a single OpenAI-compatible API endpoint that connects your applications to all major Large Language Models (LLMs) and multimodal AI providers. With SmartRoute 2.0, AiGate dynamically routes requests based on latency, success rate, procurement costs, margin targets, and SLA rules, while providing granular API key permissions and real-time token billing.

## Core Features
- **Unified OpenAI-Compatible API**: Interoperable Chat Completions, Responses, Image Understanding, Embeddings, and Realtime Voice.
- **SmartRoute 2.0 Engine**: Real-time multi-provider routing with health checks, latency scoring, failover, circuit breaking, and profit margin snapshotting.
- **Gateway-Level Caching**: Multi-tenant semantic gateway cache to reduce upstream costs and latency.
- **Token-Level Billing & Visibility**: Immutable cost and revenue snapshots per request, balance pre-allocation, and real-time margin tracking.
- **Enterprise Access Control**: Fine-grained API Key controls (model restriction, CIDR/IP whitelisting, RPM, TPM, budget caps, expiration).
- **Turnkey Private Deployment**: Complete self-hosted deployment package for enterprise networks or private SaaS operations.

## Supported Models
- **OpenAI**: GPT-4o, GPT-4o-mini, o1, o3-mini
- **Anthropic**: Claude 3.5 Sonnet, Claude 3.5 Haiku, Claude 3 Opus
- **DeepSeek**: DeepSeek V3, DeepSeek R1
- **Google**: Gemini 1.5 Pro, Gemini 1.5 Flash
- **Open Source / Local**: Qwen 2.5, Llama 3.3, Yi

## Key Technical Specifications
- Base API URL: `https://api.aigatea.com/v1`
- Auth Header: `Authorization: Bearer $AIGATE_API_KEY`
- Format: JSON, SSE (Server-Sent Events for streaming)

## Important Links
- Official Website: https://aigatea.com/
- English Portal: https://aigatea.com/en/
- Commercial Deployment Service: https://aigatea.com/deploy/
- API Documentation: https://api.aigatea.com/docs
- User Console / Registration: https://api.aigatea.com/register