List of API Errors

This is the list of errors our API may produce. We strongly advise developers to log and analyze all API errors and take appropriate and timely action, like fixing bugs in your app and distributing updates to your users. We actively protect our API from "nonsense" requests, which, for example, produce the same error if the same request is repeated over and over again. This includes IP and subnet bans as well as account suspensions in some severe cases.

Identifier	Code	Description
0		Code 0 is for "no errors".
1	ERROR_KEY_DOES_NOT_EXIST	Account authorization key not found in the system. Make sure you copied it correctly without spaces or tabulation signs.
2	ERROR_NO_SLOT_AVAILABLE	No idle captcha workers are available at the moment; customers should increase their maximum bid in the API settings in the client area or choose less busy hours to create tasks. You'll find more information about how bids work in FAQ.
3	ERROR_ZERO_CAPTCHA_FILESIZE	The size of the captcha you are uploading is less than 100 bytes.
4	ERROR_TOO_BIG_CAPTCHA_FILESIZE	The size of the captcha you are uploading is more than 500,000 bytes.
10	ERROR_ZERO_BALANCE	Account has zero or negative balance.
11	ERROR_IP_NOT_ALLOWED	You are not allowed to make requests from your IP with your current account key. Please refer to IP list section located in security settings inside client area.
12	ERROR_CAPTCHA_UNSOLVABLE	5 different workers could not solve the Captcha. Customers are charged for these tasks because our workers spend time performing them.
12	ERROR_BAD_DUPLICATES	100% recognition feature did not work because of insufficient number of guesses.
14	ERROR_NO_SUCH_METHOD	Request made to API with a method that does not exist. This usually happens when programmers mistype method names.
15	ERROR_IMAGE_TYPE_NOT_SUPPORTED	Could not determine captcha file type from its exif header or the image type is not supported. The only allowed formats are JPG, GIF, PNG. Images must contain an EXIF header containing information about the image type.
16	ERROR_NO_SUCH_CAPCHA_ID	The captcha you are requesting does not exist in your active captchas list or has expired. Captchas are removed from the API 60 seconds after the worker completes the task. During this period, your app should send all task result polls and correct/incorrect reporting requests.
21	ERROR_IP_BLOCKED	Your IP is blocked due to improper use of API. Check the reason here.
22	ERROR_TASK_ABSENT	"task" property is empty or not set in the createTask method.
23	ERROR_TASK_NOT_SUPPORTED	Task type is not supported or typed incorrectly. Please check "type" property in the task object.
24	ERROR_INCORRECT_SESSION_DATA	Some of the required values for successive user emulation are missing. API output contains more details about what is missing.
25	ERROR_PROXY_CONNECT_REFUSED	Could not connect to task proxy, connection refused.
26	ERROR_PROXY_CONNECT_TIMEOUT	Could not connect to task proxy, connection timed out.
27	ERROR_PROXY_READ_TIMEOUT	Reading timeout of task's proxy
28	ERROR_PROXY_BANNED	Proxy IP banned by target service.
29	ERROR_PROXY_TRANSPARENT	Task denied at proxy checking state. Proxy must be non-transparent to hide our server IP. Use our proxy checker tool to debug your proxy.
30	ERROR_RECAPTCHA_TIMEOUT	Recaptcha task timeout, probably due to slow proxy server or Google server
31	ERROR_RECAPTCHA_INVALID_SITEKEY	Captcha provider reported that the site key is invalid.
32	ERROR_RECAPTCHA_INVALID_DOMAIN	Captcha provider reported that the domain for this site key is invalid.
33	ERROR_RECAPTCHA_OLD_BROWSER	Captcha provider reported that the browser user-agent is not compatible with their javascript
34	ERROR_TOKEN_EXPIRED	Captcha provider server reported that the additional variable token has expired. Please try again with a new token.
35	ERROR_PROXY_HAS_NO_IMAGE_SUPPORT	Proxy does not support transfer of image data from Google servers. Use our proxy checker tool to debug your proxy.
36	ERROR_PROXY_INCOMPATIBLE_HTTP_VERSION	Proxy does not support long GET requests with length about 2000 bytes and does not support SSL connections. Use our proxy checker tool to debug your proxy.
49	ERROR_PROXY_NOT_AUTHORISED	Proxy login and password are incorrect. Use our proxy checker tool to debug your proxy.
51	ERROR_INVALID_KEY_TYPE	Passed sitekey is from another Recaptcha type. Try solve it as V2, V2-invisible or V3.
52	ERROR_FAILED_LOADING_WIDGET	Could not load captcha provider widget in worker browser. Please try sending a new task.
53	ERROR_VISIBLE_RECAPTCHA	Attempted solution of usual Recaptcha V2 as Recaptcha V2 invisible. Remove flag 'isInvisible' from the API payload.
54	ERROR_ALL_WORKERS_FILTERED	No workers left that were not filtered by reportIncorrectRecaptcha method.
55	ERROR_ACCOUNT_SUSPENDED	The system has suspended your account for a significant reason. Contact support for details.
56	ERROR_TEMPLATE_NOT_FOUND	AntiGate template not found by its name during task creation.
57	ERROR_TASK_CANCELED	AntiGate task was canceled by worker. See "errorDescription" field for the cancellation reason.