Billing & Refund Policy
Last updated: October 6, 2026
This policy applies to the Tangara website, REST API and MCP server and forms part of the Terms of Service. For billing questions, contact [email protected].
1. Adding balance
Tangara uses a prepaid US-dollar balance with one-time payments through Stripe. It is not a subscription and does not automatically renew. Current top-ups range from $5 to $500; the checkout displays the amount before you pay. Your card issuer may apply its own currency conversion or fees.
Balance is for using Tangara, not a bank account or a transferable payment account. The Service does not currently apply an automatic expiry date to purchased balance.
2. Generation charges
Before submitting a paid task, check the quote for its settings. The same pricing applies through the website, REST API and MCP. The accepted amount is recorded with the task and deducted when it enters the queue. A later tariff change does not change that task's price.
A service-side retry of the same task does not create a new generation charge. If you choose to submit a new task, including another generation using a previous prompt, the new task has its own quote and charge.
3. Failed tasks
If a task permanently fails, its generation charge is automatically returned to your Tangara balance. This is a balance adjustment, not a refund to your card. An in-progress task has not yet reached a final outcome.
If a failed task has not received the expected return, email [email protected] with the task ID. Do not send your password, API key or full card details.
4. Completed results
Successful generation remains charged. AI results vary and may not match your artistic expectations; dissatisfaction alone does not trigger an automatic balance return. If a result is missing, corrupted, technically defective or the Service was not supplied as described, contact support with the task ID so we can investigate and provide an appropriate remedy.
This distinction does not limit rights you have under consumer law.
5. Unused balance and payment refunds
To request a refund of unused purchased balance, email [email protected] from your account email, identifying the payment and the amount concerned. We review the payment, remaining purchased balance, work already delivered and applicable refund rights, and explain the outcome. The product does not currently offer an automatic self-service card-refund button.
An approved payment refund is processed through the original payment method where possible. The refunded amount is removed from your Tangara balance to prevent it being spent again. Payment-provider and bank processing times vary; we do not promise an unverified number of days.
Contact us if you suspect an incorrect or unauthorised charge. This does not prevent you from contacting your bank or using rights provided by law.
6. Consumer rights
Any mandatory withdrawal, cancellation, refund or defective-service rights that apply to you take precedence over this policy. Submitting a generation task asks us to begin processing it; this policy does not treat that action alone as a waiver of statutory cancellation rights. No automatic waiver is inferred merely because a task entered the queue or completed.
7. Changes and contact
Changes apply prospectively and are published here with the updated date. They do not retroactively change the recorded price of a task or remove accrued legal rights.
Contact: [email protected]. The individual operating Tangara and correspondence address are identified in the Terms of Service.