Errors

Klint returns branded errors without leaking upstream provider details.

Error format

{
  "error": {
    "code": "rate_limit_exceeded",
    "message": "Rate limit exceeded. Retry after 30 seconds.",
    "type": "rate_limit_error"
  }
}

Code	HTTP	Description
`invalid_api_key`	401	Key missing or invalid
`insufficient_tokens`	402	Wallet balance exhausted
`rate_limit_exceeded`	429	Too many requests
`model_not_found`	404	Unknown model ID
`upstream_error`	502	Provider temporarily unavailable