The GitBook API is currently in beta. This means you should not rely on it's availability, and that it may change without prior warning.
GitBook uses conventional HTTP response codes to indicate the success or failure of an API request.
As a general rule:
  • Codes in the 2xx range indicate success
  • Codes in the 4xx range indicate incorrect or incomplete parameters (e.g. a required parameter was omitted, or an operation failed with a 3rd party, etc.)
  • Codes in the 5xx range indicate an error with GitBook's servers.
GitBook also outputs an error message and an error code formatted in JSON:
"error": {
"code": 404,
"message": "Page not found in this space"