> For the complete documentation index, see [llms.txt](https://docs.payswap.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payswap.org/use-cases/bills/proxy-investment.md). # Proxy Investment This service can be given by licensed brokers that receive stock purchases orders and execute those purchases on the stock market on behalf of their users. If you are willing to invest in Tesla stock for instance, you can go to the Bills' page and search for an Bill that does proxy investment for Tesla. Once you find one, you can apply for an account and use that account for all you buy/sell orders of the Tesla stock. Anytime you want to buy an amount X in USD of the stock, you create a purchase X USD command on your account by running the Notify Credit function and anytime you want to sell an amount Y in USD of the stock, you create a sell Y USD command on your account by running the Notify Debit function. The Bill admin will regulary withdraw the funds you deposit to purchase the stock or sell it and deposit the funds on your account --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.payswap.org/use-cases/bills/proxy-investment.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.