Count tokens
Find out how many input tokens a request will use before you send it.
Base URLhttps://api.kalle.build/v1AuthBearer kalle_sk_…VersionKalle-Version: 2026-11-01
Count tokens
Takes the same model, messages, system and tools as Create a message and returns input_tokens. Counting is free and does not count towards rate limits.
POST/v1/messages/count_tokens
curl https://api.kalle.build/v1/messages/count_tokens \
-H "Authorization: Bearer $KALLE_API_KEY" \
-H "Kalle-Version: 2026-11-01" \
-H "Content-Type: application/json" \
-d '{
"model": "kalle-turbo-max",
"messages": [
{
"role": "user",
"content": "Write a short welcome text for a yoga studio in Copenhagen."
}
]
}'