Vercel AI Gateway

Provider

Gateway that routes model requests across providers with fallbacks

Price: Free tier, then paid
Access: AI Gateway API key

About

Vercel's managed gateway for calling models from many providers with one key. It adds fallbacks, budgets and request logs, and bills tokens at provider list price. It works from any cloud, not only Vercel; the free monthly credit covers a subset of models.

What you can do with it

Call OpenAI, Anthropic, Google and other models through one OpenAI-compatible API
Fall back to another provider or model automatically when a request fails
Set spend budgets and inspect cost, latency and tokens for every request

Get started

Create an AI Gateway API key in the Vercel dashboard
Add a payment method to use the free monthly credit

Example

curl https://ai-gateway.vercel.sh/v1/chat/completions \
  -H "Authorization: Bearer $AI_GATEWAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-6-astra",
    "messages": [{"role": "user", "content": "Explain AI Gateway in one sentence."}]
  }'

Details

Hosting: Hosted service
Available in: Worldwide
Official SDKs: JavaScript/TypeScript, Python
MCP server: None