Captcha (RoK and CoD)

Only Rise of Kingdoms and Call of Dragons. The support knowledge base and this guide treat every other BoostBot game as not needing a 2Captcha key. If Human Verification never appears for your game, skip this page.Ban risk is also concentrated on those two games. Read the bot safety guide after you have the key working.

RoK and CoD put a human verification challenge in front of some in-game actions. BoostBot names that section Human Verification. The bot sends the challenge to 2Captcha and waits for a solution from their operators. Times vary. That is the game's check, not a BoostBot switch you can turn off.We do not publish a list of the exact game screens that trigger a challenge. If the bot stops on a verification prompt, treat it as a captcha job and follow the setup below.

Create an account on the 2Captcha website.Add funds. 2Captcha bills per solved captcha. BoostBot support quotes about $0.0012 per attempt. 2Captcha's own price list, checked 24 August 2026, runs from $0.50 to $2.99 per 1,000 depending on type. Use their pricing page for the live rate.Copy the API key from your 2Captcha account page. Their API docs describe it as a 32-character string.Open your BoostBot instance. In the configuration menu open Human Verification.Paste the key and click Save Key.After that, BoostBot sends challenges it hits in-game to 2Captcha automatically. You can watch submitted jobs on your 2Captcha account page.

If the selected game needs captcha solving, Human Verification is in that instance's configuration menu. Paste the key there and save. There is no separate key inside the emulator or the phone game client. The key lives on the BoostBot instance that is driving the account.

The fee is paid to 2Captcha, not to BoostBot. Support quotes about $0.0012 per attempt. 2Captcha's published list on 24 August 2026 prices Image and Normal captchas at $0.50 to $1.00 per 1,000, Slider at $1.20 per 1,000, and GeeTest at $2.99 per 1,000. Their pricing page is the source of truth if those numbers move.An empty 2Captcha balance returns ERROR_ZERO_BALANCE on their API. An incorrect key returns ERROR_KEY_DOES_NOT_EXIST. Both codes come from 2Captcha's error reference.

On 13 January 2026 the Call of Dragons changelog added a free local gee slider solver for the loading-screen captcha, and said it should be faster and more stable than sending that slider to 2Captcha. Staff answered on 14 January 2026 that you still need 2Captcha for captchas that are not sliders. Keep the key in place even if the loading slider is now local.

Resolution times vary. 2Captcha's own help lists slow solving as a normal support topic. Watch the job on your 2Captcha account page. Do not restart the bot in a loop while a challenge is waiting. That just submits more jobs.If the queue sits for a long stretch, confirm the 2Captcha balance is not zero and that new jobs are appearing on their dashboard. If BoostBot never sends a job, that is a bot-side problem. Open a ticket on Support with the launcher log.

Buyers have seen two wrong solutions in a row. Staff answered on 2 January 2026 that this is out of BoostBot's control because a third party solves it. 2Captcha's API returns ERROR_CAPTCHA_UNSOLVABLE when three of their workers cannot solve a challenge, and they return the price to your balance.A wrong click in-game is a 2Captcha miss, not a BoostBot script bug. Open a BoostBot ticket only if the bot is not sending the challenge at all.

Re-copy the key from the 2Captcha dashboard in Customer or Developer mode. That is 2Captcha's wording for ERROR_KEY_DOES_NOT_EXIST.Paste it again in Human Verification and click Save Key.Confirm the 2Captcha account has funds. An empty balance is ERROR_ZERO_BALANCE.If you set a trusted-IP list on 2Captcha, the request IP must be on that list (ERROR_IP_NOT_ALLOWED).Logs that mention a missing key or a refused solve belong in a support ticket with the launcher log.

BoostBot runs on Windows. You set the key in that Windows instance, not in the game's phone client.PC version: open Human Verification on the instance on your PC.Bot Server: same instance, reached with Remote Desktop. The guides hub has the Windows Remote Desktop steps and the Android and iOS Microsoft Remote Desktop steps.Emulator: staff recommend LDPlayer. Captcha setup is still in BoostBot, not in LDPlayer settings. Emulator disconnects belong on the common issues page.Phone game client: there is no 2Captcha field in the iOS or Android game. The phone only matters if you are using Remote Desktop into a Bot Server.