Error Codes

All errors use this envelope:

{
  "error": {
    "code": "error_code_string",
    "message": "Human-readable description."
  }
}

HTTP Status	Code	Scenario
`401`	`invalid_api_key`	Missing, invalid, or revoked API key
`402`	`insufficient_credits`	Insufficient credits for job/run creation
`404`	`not_found`	Resource not found or not owned by you
`409`	`job_not_ready`	Job not in `ready` status for run/schedule creation
`422`	`validation_error`	Request body validation failed
`429`	`rate_limited`	Rate limit exceeded

404 is returned for resources that belong to another user (never 403) to prevent enumeration.
401 is identical whether the key never existed or was revoked.