One key.Every model.

Nexo is a gateway for the AI models you ship with.
Top up once, call everything through one key.

Create your account

Why Nexo

A simpler way to ship AI features.

One balance, many models

Top up a single Nexo account and spend across every supported model. No per-provider contracts, no separate dashboards.

Prepaid, by design

You control the ceiling. Redeem a top-up code whenever you need more credit, spend it down, redeem again.

Drop-in API

Standard chat-completions format over HTTP. Point your existing client at Nexo, swap in your key, ship.

How it works

Your first call in under two minutes.

Create an account

Email + password. That's it.

Redeem a top-up code

Paste the code on the Billing page. The credit lands on your balance immediately.

Create an API key

Go to the Keys page and generate one. Copy it somewhere safe — it's shown only once.

Call the API

Point any standard client at api.nexoapi.com/v1/chat/completions with your key.

example.sh

curl https://api.nexoapi.com/v1/chat/completions \
  -H "Authorization: Bearer sk-••••••••" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Ready to ship?

Create your account