Billing center

Plans & pricing

All plans are billed monthly in USD unless an Enterprise agreement states otherwise:

• Starter — $6 / month
• Developer — $15 / month
• Growth — $25 / month (popular)
• Business — $79 / month
• Enterprise Scale — $149 / month

Feature and credit details are listed on the pricing page.

Upgrades & downgrades

• Upgrades can usually take effect immediately after confirmation
• Downgrades apply at the next billing cycle unless otherwise agreed
• Signed-in customers can change plans from the account plans page. Card checkout runs on pay.xenqorsystems.com.
• Enterprise custom terms supersede self-serve plan defaults when signed in writing

Invoices & receipts

Paid invoices are emailed to the billing contact on file. Need a copy for accounting?

• Email [email protected] with the invoice date or number
• Request VAT/tax ID updates before the next renewal when possible
• Company legal name on invoices matches Xenqor Systems LLC

Credits & overages

Each plan includes a monthly allowance of API alert credits. If you approach the limit:

• Consider upgrading before credits are exhausted
• API responses may return 402 when credits are depleted
• Business and Enterprise customers can discuss volume options with billing

Payment methods

Paid plans are charged by card through Stripe on pay.xenqorsystems.com. Xenqor does not store full card numbers. Invoices can still be requested from [email protected]. Failed payments may pause API access until the balance is resolved.

Auto-renew and one-time

Paid plans on Xenqor Systems can be billed in either of two ways. Both are charged by card on pay.xenqorsystems.com under the Xenqor Systems name.

• Auto-renew — a subscription for 1, 3, or 6 months. Stripe charges again at the end of that term unless you stop renewal.
• One-time — a single charge for 1, 3, or 6 months of access. There is no automatic renewal. Buy again when the term ends if you want to continue.

Choose the billing type on the pricing page or in account plans before checkout.

Stop automatic renewal

Use the self-service page to stop renewal at the end of the current billing period (Stripe will not charge again unless you subscribe anew).

Stop renewal · Signed-in billing

You can also email billing with subject Cancel Subscription or use the contact form.

Refunds

New paid subscriptions may qualify for a full refund within 14 days of the first successful charge. See the full Refund Policy for eligibility, exclusions, and timelines.

Chargebacks

Please contact billing before opening a chargeback so we can resolve the issue quickly. Unresolved chargebacks may result in temporary account suspension pending review.