The crypto payment API built for developers
Add crypto payments, payouts and refunds to your product in an afternoon. Clear docs, ready-made libraries for PHP, Python and Node.js, and a full test mode before you go live.
Your product deserves payments that fit it, not a checkout bolted on from the outside. The CryptoPayr crypto payment API gives your team everything it needs to take payments in 110+ coins, pay people out and handle refunds, all from your own code and under your own brand.
Getting started takes minutes. Create an account, grab your keys, and use the ready-made libraries for PHP, Python and Node.js or call the API from any language you like. A full test mode lets you create payments, complete them and watch your system react, all without real money, so your launch day has no surprises.
When a customer pays, your system hears about it the moment the payment is final, so orders complete, credits land and licenses activate on their own. Show the hosted checkout, open it in a popup on your own page, or build your own screen around the payment details. Payouts, payout links and refunds work the same way.
Building a marketplace or a platform? Create accounts for your sellers, take a commission on every sale and move money between them, all through the same API. Interactive docs and a ready-made collection for Postman help your team explore every call. Pricing is simple: 2% per payment, 1.5% above $1,000 a month and 1% above $5,000 a month, with no setup or monthly fees.
Why developers outgrow other crypto payment APIs
Docs that leave you guessing
Thin documentation and no way to test means your first real payment is also your first test. Problems show up in production, in front of customers.
Payments in, but nothing out
Many gateways only take payments. The moment you need to pay sellers, refund a customer or cash out a user, you are stitching together a second provider.
A checkout you cannot make your own
A third-party page with someone else's brand breaks the experience you designed, and customers hesitate when they land somewhere unfamiliar.
Onboarding that takes weeks
Applications, company documents and long reviews stand between your team and its first line of code, while the launch date slips.
Everything your team needs in one API
Payments in 110+ coins
Create a payment in your currency, let the customer pick from Bitcoin, Ethereum, USDT, USDC and 110+ others, and get the result back the moment it is final.
Payouts, payout links and refunds
Send money out to one wallet or many, create payout links your users claim themselves, and refund customers, all from the same API.
Libraries and a ready-made collection
Official libraries for PHP, Python and Node.js, interactive docs, and a ready-made collection for Postman so your team can try every call in minutes.
A full test mode
Separate test keys let you create payments, complete them and check every outcome without real money, so you ship with confidence.
Checkout your way
Use the hosted checkout, open it in a popup on your own page, or build your own screens around the payment details. Your brand stays front and centre.
Built for platforms
Create accounts for your sellers, take a commission on every payment they receive and move balances between accounts, perfect for marketplaces and SaaS platforms.
What teams build with the API
- Checkout for SaaS plans, credits and top-ups
- Marketplaces with commissions and seller payouts
- Game and app stores with instant delivery
- Deposits and cash-outs for trading and gaming sites
- Invoicing and billing tools for businesses
- Telegram and Discord bots that sell access
- White-label payment products for your own clients
From sign-up to live in four steps
Create your account
Sign up for free with an email address. There is no KYC and no waiting for approval.
Build in test mode
Use the libraries or call the API directly, create test payments and check your system reacts the way you expect.
Add payouts and refunds
Pay sellers, cash out users and refund customers through the same API.
Go live
Switch to your live keys and take real payments the same day.
Crypto payment API: FAQ
What is a crypto payment API?
A crypto payment API lets your website or app create payments, receive the result and send money out with code, instead of using a ready-made plugin. It is how SaaS products, marketplaces, games and apps build crypto payments into their own experience.
Which programming languages are supported?
Any language that can make a web request. Official libraries are available for PHP, Python and Node.js, and the interactive docs and Postman collection make it easy to start in anything else.
Can I test without real money?
Yes. Test mode has its own keys and lets you create payments and complete them with any outcome, so you can check your whole flow before going live.
Can I send payouts and refunds through the API?
Yes. The same API sends payouts to one wallet or many, creates payout links your users claim themselves and refunds your customers.
Can I keep my own branding?
Yes. Open the checkout in a popup on your own page or build your own payment screen. You can also connect your own domain so customers never leave your brand.
How much does the API cost?
Using the API is free. You pay only the processing fee on payments you receive: 2% per payment, 1.5% above $1,000 a month and 1% above $5,000 a month.
Do I need KYC or a company to get API access?
No. Create an account with your email address and you can start building straight away, without KYC or KYB checks and without registering a company.
Start building with the CryptoPayr API
Free account, test mode included, no setup or monthly fees.