Feature

2.2.41System Update

Add local token estimation for Claude Code CLI

the missing /v1/messages/count_tokens endpoint was causing Claude Code CLI to crash on startup.

We've just shipped a fix that implements this endpoint. It performs local token estimation, so it returns a valid {"input_tokens": N} response without any additional latency.

The endpoint supports:

  • String and structured content block messages
  • System prompts
  • Tool definitions

The fix is resolved and on Live. Claud Code CLI should start normally against the Apertis API.

Enjoy it.