Ship crypto payments. Earn from every one.
Add Payid19 to the stores and software you build. Send your referral ID with the invoice and half of our commission on every payment your clients receive is yours — for as long as they keep using it.
{
"public_key": "YOUR_PUBLIC_KEY",
"private_key": "YOUR_PRIVATE_KEY",
"price_amount": 100,
"order_id": "42",
"referral": "YOUR_REFERRAL_ID" // this line pays you
}
One parameter. That is the whole integration.
You already call create_invoice to take a payment. Add referral with the ID from your dashboard and that invoice is attributed to you.
- No separate account, contract or dashboard to manage.
- Works on every invoice you create, across every client.
- Your client pays the same 1% they would pay anyway.
Payid19 charges the merchant a 1% commission on incoming payments. When an invoice carries your referral ID, that commission is split down the middle: half stays with us, half is credited to your balance in USDT.
Nothing is added to your client’s cost, and nothing is deducted from the amount they receive. Your share comes out of ours.
What one client is worth
Integrations you have already delivered keep paying, every month they keep selling.
| Your client receives per month | Payid19 commission (1%) | Your share |
|---|---|---|
| 5,000 USDT | 50 USDT | 25 USDT / month |
| 20,000 USDT | 200 USDT | 100 USDT / month |
| 100,000 USDT | 1,000 USDT | 500 USDT / month |
Figures assume the standard 1% commission. Small payments have a minimum commission of 0.2 USDT, and payments of 1 USDT or less are free of charge.
Who this is for
Agencies and freelancers
You build online stores for clients. Offer crypto alongside cards at checkout, and every store you launch keeps earning after the invoice for the project is settled.
Software and plugin authors
Ship Payid19 as a payment option inside the software you sell or distribute — e-commerce, SaaS, games, crowdfunding, marketplaces.
Payment integrators
If you set up payment methods for other businesses, adding crypto takes one endpoint and turns a one-off job into recurring revenue.
Not a developer?
The personal referral program works the same way, with a link instead of an API parameter — share it with any business that takes payments online.