One API for all LLM providers
Unified API Interface
Compatible with the OpenAI API format — migrate by changing the base URL, keep your SDK, and reach 200+ models across 40+ providers with no code changes.
OpenAI SDK → LLM Gateway
Change the base URL, keep your code
01
Zero Code Changes
Switch between providers without modifying your application code
02
Standard Format
Use the familiar OpenAI SDK and API format across all providers
03
Fast Migration
Migrate from OpenAI to other providers in minutes, not days
04
Future-Proof
Add new providers as they become available without code changes
Built for
Multi-Provider Applications
Build applications that can use different providers for different use cases
Cost Optimization
Switch to cheaper providers for less critical workloads
Risk Mitigation
Avoid vendor lock-in by using a provider-agnostic API
app.ts
1import { createLLMGateway } from "@llmgateway/ai-sdk-provider";2import { streamText } from "ai";3 4const llmgateway = createLLMGateway({5 apiKey: process.env.LLM_GATEWAY_API_KEY,6});7 8const result = streamText({9 model: llmgateway("claude-sonnet-5"),10 prompt: "Why is the sky blue?",11});More in routing & reliability
All featuresStart using Unified API Interface today
One API key. Every model. Live in minutes.