What is H2C (host-to-client) integration

Host-to-Client (H2C) integration is the go-to solution for fast, flexible payment collection. Perfect for one-time invoices or quick checkouts, it allows businesses to generate a static payment link with pre-filled data (like currency and amount) and send it to the client. The user clicks the link, completes the payment on Calypso Pay’s secure page — and you receive the funds directly.

Example Use Cases

• Crypto invoices
• Manual top-ups
• Subscription triggers
• Donations and fundraising

• Effortless setup: no extra coding required.
• Works for any business case: from SaaS billing to Charity.
• Supports all major cryptocurrencies.

This approach is ideal for companies that want to start accepting crypto instantly with minimal technical work.

• You generate a payment link via API or manually in the dashboard.
• Each link can include currency, amount, and additional metadata.
• The user is redirected to Calypso Pay’s hosted payment page, where they choose a payment method and finalize the transfer.
• Webhooks notify you of completed or failed payments.

This model reduces the burden on your infrastructure while maintaining full visibility and control over payment statuses.