LLM Gateway

LLM Gateway is an open-source API gateway that provides a single OpenAI-compatible API key to access over 200 models from 40+ large language model providers including OpenAI, Anthropic, and Google. It offers usage analytics, cost tracking, caching, and automatic failover to ensure reliability. The platform supports bring-your-own-keys for free routing, pay-as-you-go credits with a flat 5% fee, and a self-hosted option under AGPLv3 license. It is designed for developers and teams building AI features who want to avoid juggling multiple provider accounts and SDKs, providing a unified, cost-aware, and reliable AI infrastructure.

Who is it for?

Developers and teams building AI-powered applications requiring multi-provider LLM integration and analytics

Problem

Developers building with large language models face challenges managing multiple provider accounts, incompatible SDKs, separate invoices, and lack of unified cost and usage visibility. This complexity hinders efficient AI feature development and scaling.

Solution

LLM Gateway provides a single OpenAI-compatible API endpoint that routes requests to over 40 providers and 200+ models, with real-time cost tracking, caching, and automatic failover. It supports bring-your-own-keys, pay-as-you-go credits, and self-hosting, simplifying integration and management.

What makes it unique

• Open-source AGPLv3 licensed with full self-hosting option
• Unified API compatible with OpenAI SDKs requiring only one line change
• Real-time cost, latency, and usage analytics per request
• Automatic failover across multiple providers for near 100% uptime

• Unified API Interface

  Single OpenAI-compatible API endpoint for all supported LLM providers.

  01
• Multi-provider Support

  Access 40+ providers and 200+ models through one integration with no vendor lock-in.

  02
• Performance Monitoring

  Compare latency, cost, and quality across models to select the best fit.

  03
• Secure Key Management

  Manage all provider API keys securely in one dashboard.

  04
• Self-hosted or Cloud

  Option to self-host the gateway or use the hosted cloud service.

  05
• Cost-aware Analytics

  Track requests, tokens, spend, and average cost per 1K tokens over time.

  06
• Automatic Failover

  Seamless routing to healthy providers to ensure near 100% uptime.

  07
• Enterprise Audit Logs

  Immutable audit trails for compliance and security.

  08

Business model

SAAS

Audience

B2B

Platforms

web · api

Pricing model

freemium

Open source

Yes

Value proposition

One API gateway to unify access, analytics, and failover across multiple LLM providers for developers and teams.

IaaS

GGoogle Cloud

Metadata

OOpen Graph

Other

React

Protocol

HHTTP/3

UI framework

Tailwind CSSRadix UI

UI library

shadcn/uiLucide

Web app

PWA

Web framework

Next.js