Ad Copy Generator API

Write high-converting ad copy for any product.

The Ad Copy Generator API lets you write high-converting ad copy for any product. programmatically — a single call, structured output, no prompt engineering. It's part of the Larz Tools API and runs on the same Larz API key you use everywhere else.

Endpoint

Example request

curl https://api.larzos.com/v1/tools/adcopy \
  -H "Larz-Api-Key: larz_sk_your_key" \
  -H "Content-Type: application/json" \
  -d '{"input":"a subscription box for dog treats"}'

Example response

{
  "id": "larz_run_…",
  "object": "tool_result",
  "tool": "adcopy",
  "output": "…generated result…",
  "usage": { "tokens": 180 }
}

What you can build

• Add a one-click "ad" feature to your own app.
• Automate marketing workflows at scale.
• Power internal tools, bots, or batch jobs — write high-converting ad copy for any product on demand.

Pricing

Free on the Free tier (200,000 tokens/month, 60 requests/min). Every call returns your remaining quota in the X-Larz-Tokens-Remaining header.

Get an API keyTry Ad Copy Generator free →