.. _billing:

Billing & Credits
=================

.. contents:: On this page
   :local:
   :depth: 2

Blocks subscriptions are managed from **Billing** in the workspace sidebar. Your plan sets the
limits for your workspace and includes a monthly allowance of AI **credits**; you can also buy
one-time credit packs. Payments are processed securely through Stripe.

The billing marketplace
-----------------------

The **Billing** area shows the available subscription plans:

* By default it shows **annual billing**, displaying the annual price divided by 12 as the
  monthly-equivalent headline price.
* You can switch to **monthly billing** before starting checkout.
* Each plan lists its configured **limits**: LTI platforms, LTI registrations, LTI deployments,
  knowledge bases, knowledge base sources, and team members.

Only workspace **owners and admins** can review plans and make billing changes.

Choosing or changing a plan
---------------------------

#. Open **Billing** and review the available plans and their limits.
#. Select a billing period (annual or monthly).
#. Start **checkout** to subscribe or change plan through Stripe.

.. note::

   **Downgrades are blocked** when your current usage exceeds a limit of the target plan. For
   example, if you have more knowledge bases than a lower plan allows, you must reduce usage
   first. (Operational support staff can bypass this when assisting you.)

Plan limits and create actions
------------------------------

Your active plan limits are enforced as you work. Creating an LTI platform, registration, or
deployment, a knowledge base or knowledge base source, or sending a team invitation is **blocked
when it would exceed your plan's limit**. If you hit a limit, upgrade your plan or remove unused
items.

How credits work
----------------

**Credits** meter AI usage across tools (AI Tutor, AI Expert Chat, AI grading, AI generation, AI
submission scoring, and knowledge base processing).

* Your subscription includes a **monthly plan credit** allowance that refreshes each billing
  cycle.
* AI usage consumes your **monthly plan credits first**, then any purchased credit-pack credits.

Credit packs
------------

When you need more than your monthly allowance, buy a one-time **credit pack**:

* Credit packs can be purchased only while your subscription is **active**.
* Purchased credit-pack credits remain **unavailable while a subscription is inactive**, and
  become usable again once it is active.

Subscription status
-------------------

Your subscription state is kept in sync with Stripe automatically:

* Successful payments keep your subscription **active** and refresh your monthly credit bucket.
* A failed payment marks the subscription **past due**.
* A cancelled subscription is marked **canceled**.

To monitor how credits are being consumed, see :ref:`usage_reports`.

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