Currencylayer Error Response

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/currencylayer/json-schema/currencylayer-error-schema.json",
  "title": "Currencylayer Error Response",
  "description": "Standard Currencylayer error envelope returned on 4xx responses.",
  "type": "object",
  "required": ["success", "error"],
  "properties": {
    "success": { "type": "boolean", "const": false },
    "error": {
      "type": "object",
      "required": ["code", "type", "info"],
      "properties": {
        "code": {
          "type": "integer",
          "description": "Currencylayer error code (101, 103, 104, 105, 106, 404)."
        },
        "type": {
          "type": "string",
          "description": "Machine-readable error type slug (e.g. invalid_access_key, monthly_usage_limit_reached)."
        },
        "info": {
          "type": "string",
          "description": "Human-readable explanation suitable for surfacing to operators."
        }
      }
    }
  }
}