> For the complete documentation index, see [llms.txt](https://docs.tachyo.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tachyo.ai/account/subscription.md).

# Subscription and renewal

## What you bought

Tachyo Access is a **one-off purchase for a fixed period**: 90 days. Nothing recurring is stored and nothing charges you again by itself.

Payment is in **USDT on BNB Chain (BSC) or Base**, and access activates on chain confirmation. See [Getting access](/getting-started/getting-access.md) for the purchase flow.

## Knowing when it ends

You do not have to track the date yourself:

* **In-app banners** appear as the end approaches, counting down at 7, 3 and 1 day.
* **A Telegram reminder** comes from the bot before access lapses.

The banner is your own expiry, not a generic promotion. If you see it, it is about your account.

## Renewing

Renewal is manual, on purpose. When your access ends, you go through the checkout again.

{% hint style="warning" %}
Access is sold in batches, so renewing is not always instant. If the current batch is sold out, you rejoin the queue like anyone else. If you intend to continue, start before the last day rather than after it.
{% endhint %}

## When access lapses

* You keep your account, your pins, your settings and your history. Nothing is deleted.
* Sections that require Access stop opening.
* Reactivating restores the same account, not a fresh one.

## Refunds

There are no refunds. The product is documented here in detail, and the queue exists so that people arrive deliberately rather than impulsively. Read this documentation first and buy when it fits what you actually do.

## Changing Telegram accounts

Your identity is your Telegram account, so a subscription is tied to it. If you lose access to that account, contact us before doing anything else. See [Getting help](/support/help.md).


---

# 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.tachyo.ai/account/subscription.md?ask=<question>&goal=<endgoal>
```

`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.