All Claude Models.
~90% Cheaper.

Pay per token. No subscriptions. Use it anywhere. Claude Code, Cursor, Openclaw, Hermes, Windsurf.

Astronaut

How it works

Get API Key

Sign up and get your API key in seconds

Add Funds

Top up your balance. No subscriptions, pay what you use

Start Building

Use your API key anywhere and pay per token

Pricing

ModelInput / 1MOutput / 1MCache / 1M
Haiku 4.5$0.10$1.00$0.50$5.00$0.02$0.10
Sonnet 4.6$0.35$3.00$1.75$15.00$0.07$0.30
Opus 4.6$0.70$5.00$3.50$25.00$0.14$0.50

Prepaid balance. No subscriptions. Balance never expires.

Everything you get

No Throttling

No artificial limits on quality or speed. Full power, every request.

Use It Anywhere

Claude Code, Cursor, Windsurf, Openclaw, Hermes Agent — any Anthropic-compatible tool.

Real-time Dashboard

Monitor your usage and spending in real-time. Know exactly where your money goes.

Same Uptime as Anthropic

We proxy directly to Anthropic. Same reliability, same models.

All Models Included

Haiku 4.5, Sonnet 4.6, and Opus 4.6 — access every model.

Drop-in Replacement

Change your base URL and API key. Full Anthropic API compatibility including streaming.

FAQ

Ready to get started?

Get your API key and start building with all Claude models today.