spanky96/glm-coding-grabber

glm-coding-grabber is a browser userscript built for Tampermonkey that helps buy limited subscription plans for GLM Coding, a code assistant service from a company called Zhipu. The tool is aimed at people who want to purchase these plans right when they open for sale, since the plans often sell out quickly. The script pairs with a small local Python service that runs a Chinese character captcha solver called ddddocr. When the purchase page shows a click based captcha, the local service recognizes the characters in about 100 milliseconds, which the author says is much faster than sending the image to a cloud captcha solving service. The script also measures the time difference between the user's computer clock and the server's clock, taking several samples and using the middle value so it can time its purchase attempts precisely. Once a purchase preview succeeds, the script can call the sign up API directly to lock in the order, skipping the usual redirect page. Locking in the order this way is described in the README as the recommended setting, though it requires the user to allow page redirects in Tampermonkey's settings. If the purchase page reports the item as sold out, the script automatically tries again on its own. There is also a draggable control panel on the page where a user chooses the plan length and tier, sets a target time, and starts or pauses the process. To use it, a person needs Chrome or Edge with the Tampermonkey extension installed, plus Python 3.8 or newer to run the local captcha service. Setup means cloning the project, installing the Python dependencies for the captcha service, starting that service, and then installing the userscript file into Tampermonkey. The README warns that the browser window should stay taller than 900 pixels so a payment QR code displays correctly, and that the purchase page should not be refreshed right before the sale starts. The author also notes that even with the tool, getting a purchase through still depends on some luck. The README includes a referral link for the plan the author is selling access to.