API reference

Count tokens

An estimate of how many input tokens a Messages request will use, for clients that manage their context.

POSThttps://sov.solibra.ai/v1/messages/count_tokens

The body is the same as a Messages request. The answer is an estimate, calibrated against the token counts of your real requests; it isn't billed.

curl https://sov.solibra.ai/v1/messages/count_tokens \
  -H "x-api-key: $SOV_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "claude-sonnet-5-5", "messages": [{"role": "user", "content": "How long is this?"}]}'

count = client.messages.count_tokens(model="claude-sonnet-5-5", messages=[{"role": "user", "content": "How long is this?"}])
print(count.input_tokens)

{"input_tokens": 5}