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Refunds and cancellation

Last updated 27 August 2026 · hexum.dev

Hexum is a metered digital service. You pay in euro for tokens saved after they happen, at the rates on Pricing. This page is the refund policy. It sits with the Terms.

  1. Cancel anytime
  2. Metered usage
  3. EEA / UK cooling-off
  4. When we refund
  5. How to ask

Cancel anytime

Open the Stripe Customer Portal from the dashboard (Account → Billing). That stops future billing. MCP keys stop working when the plan is no longer Usage or Teams. Usage already recorded for the current period remains due.

Metered usage

We do not sell unused prepaid tokens. An invoice is for tokens saved in a period (and, for Teams, the pooled figure). Consumed metered usage is not refunded because the service was already delivered on those calls. Cache hits that save nothing are not billed.

Rates on Pricing are early-access introductory prices. A new, higher model is expected in about a month. Until it is published, the numbers on that page apply. We do not credit the difference after a future hike for usage already billed.

EEA / UK cooling-off

If you are a consumer in the EEA or UK, distance-contract rules give a 14-day right to withdraw from many online purchases (Consumer Rights Directive 2011/83/EU Art. 9; UK Consumer Contracts Regulations 2013). That right does not apply to digital content or services once performance has begun, if you asked us to start and acknowledged that you lose the right (Art. 16(a) and 16(m)).

Turning on Usage or Teams billing, or using a key against /mcp, is a request to start the digital service immediately. Creating an account (and the Terms checkbox) is that acknowledgement. You can still cancel in Stripe so nothing new is billed. Usage already delivered is charged.

If you have not turned billing on and have not used MCP, close the account from the dashboard. There is nothing to refund.

When we refund

We will refund or credit, via Stripe, when:

  • we charged you twice for the same period;
  • the invoice is wrong as a matter of our meter (we billed tokens you did not save);
  • the service was unavailable in a way we accept as our failure for that invoice;
  • the law requires it (including a valid cooling-off claim where the exception does not apply).

We will not refund because you leaked a key, because a model bill was higher than you hoped, because hexum_check failed a turn, or because you dislike a rate after using the meter. Card disputes go through your bank and Stripe; we respond with the usage records.

How to ask

Write via Contact with the account email, the invoice id or month, and why. We aim to reply within 14 days. EEA consumers may use the European Commission’s ODR platform and their local alternative-dispute body; that does not replace a court.

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