Source: https://cryptanio.com/wiki/page/2/
Language: en

# Cryptanio Wiki — Page 2

Practical guides and explanations for cryptocurrency payments\, monitoring and integrations\.

## [How to check payment through the API without a webhook](https://cryptanio.com/wiki/check-payment-api-without-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\?](https://cryptanio.com/wiki/transaction-id-txid/)

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\?](https://cryptanio.com/wiki/usdt-network-fees/)

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](https://cryptanio.com/wiki/accept-usdc-payments-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](https://cryptanio.com/wiki/api-key-single-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 check notification delivery and resend it](https://cryptanio.com/wiki/check-notification-delivery-and-resend/)

Find a notification in Deliveries\, review the sending result\, and queue another delivery of the same event if needed\.

## [How to route different project events to different channels](https://cryptanio.com/wiki/route-project-events-to-different-channels/)

Set up separate Telegram\, Discord\, and Slack routes for one project’s confirmations\, rollbacks\, and outgoing transfers\.

## [How to accept or reject a crypto payment received after the payment deadline](https://cryptanio.com/wiki/accept-or-reject-late-crypto-payment/)

Choose the correct payment attempt and decide how to handle a late payment\: access rights\, invoice menu actions\, and checking the result\.

## [How to monitor transfers above a minimum amount](https://cryptanio.com/wiki/monitor-crypto-transfers-minimum-amount/)

Set a minimum amount for one asset in Monitoring\: base units\, an inclusive threshold\, and checks using artificial data\.

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