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Your first call, and what it cost.

Three steps. The third one is the part worth staying for.

01

A key

Scoped to your organisation, revocable from the Console, and stored only as a hash — we could not show it to you again if you asked.

02

One command

Paste it in a terminal. It asks for Opus; the router will read the prompt and decide whether it needs one.

curl https://www.lobstack.ai/api/gateway/v1/chat/completions \
  -H "Authorization: Bearer lsk_live_…" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-opus-5","messages":[{"role":"user","content":"say hello"}]}'
Note the www. The bare domain redirects, and every HTTP client drops the Authorization header when a redirect changes host.
03

The receipt

Once the call lands, what it cost appears here. This is the shape of it:

Sample· Developer plan · yours replaces it
You asked forauto
The router servedClaude Haiku 4.5
Tokens412 in · 168 out
Cost$0.001565
On Claude Fable 5.1, the priciest model that plan allows, the same tokens$0.0157
Saved on this one request$0.0141

Nothing here charges you. A key on a new organisation runs on the free allowance, the Console shows what you have spent against it, and you can revoke this key from API keys at any time. If you would rather not paste a key into a terminal at all, the same first call is one command with the CLI.