What is USDT
How USDT differs from a transfer network and what to check before paying.
Payments
Guides to receiving cryptocurrency payments, invoices and payment links.
What is USDC
How to identify the intended USDC and avoid confusion with similar tokens.
How networks and tokens differ
Why an asset name and address alone do not identify a payment route.
What is an invoice
How an invoice connects an order to payment details and cryptocurrency payment status.
What transaction confirmations mean
Why a detected transfer and a completed payment have different states.
What is a payment link
When a hosted payment page is enough and how it differs from a particular invoice.
How to accept cryptocurrency payments on your website
Choose a cryptocurrency payment flow, prepare receiving addresses and connect payment verification to your orders.
How to create a cryptocurrency payment link without a website or programming
Create a fixed-amount payment link in your account, send it to a customer and check receipt in your own wallet.
How to automatically confirm order payment through a webhook
Link an invoice to an order, verify webhook signatures and guard fulfilment against retries, underpayment and rollbacks.
How to accept crypto payments in a Telegram bot
Link a physical-product order in your own Telegram bot to a Cryptanio invoice, send a payment link, and verify payment. Includes Telegram Stars and Mini Apps restrictions.
How to accept cryptocurrency payments for subscriptions
Create a plan and subscriber in Cryptanio, share their payment page, and verify the paid-through period after each customer-initiated transfer. Configure reminders, the grace period, and prepayment rules.
Why an order stays unpaid after cryptocurrency has been sent
Check the transaction, network and token, the specific payment attempt’s details, amount, and invoice status. If the invoice is already paid, investigate its order relationship and webhook processing.
How to accept USDT payments on your website
Choose the USDT network and token, connect a receiving address for your website, show exact payment details, and distinguish a sent transfer from a paid order.
How freelancers can get paid in cryptocurrency by clients
How to agree on crypto payment for a job or milestone, email a payment link to your client and reconcile receipt before delivering the work.
How to check payment through the API without a webhook
Server-side invoice checks through the API: payment statuses, bounded polling, errors, one-time order fulfilment and recovery after a restart.
What is a TXID and where can you find a transaction ID?
Where to copy a TXID in a wallet or on an exchange, how to check it in an explorer, and how it differs from an address, a withdrawal request and an invoice number. The ID alone does not prove that an order has been paid.
USDT transfer network fees: who pays and what determines the cost?
How to distinguish network fees, wallet or exchange charges and payments for Cryptanio services. What determines the cost of a USDT transfer and how to check the amount the recipient will receive.
How to accept USDC payments on your website
Set up payment for a single order in USDC on a network chosen in advance: verify the exact token, connect an address to the project, create an invoice and confirm the result on your server.
How to restrict an API key to one project
Create a separate key for server-side invoice reconciliation in one project: select the project, read access and the required API section, configure IP rules and expiry, then test the access boundary.
How to accept or reject a crypto payment received after the payment deadline
Choose the correct payment attempt and decide how to handle a late payment: access rights, invoice menu actions, and checking the result.