Which cryptocurrencies does JamsrPay support?

JamsrPay supports all major cryptocurrencies including USDT (TRON, BNB Chain, Ethereum, Solana, Polygon), USDC, Bitcoin (BTC), Ethereum (ETH), Solana (SOL), TRON (TRX), BNB, Litecoin, and more.

How do I integrate JamsrPay into my application?

You can integrate using our REST APIs, SDKs (TypeScript, Python, Go, Rust, PHP), and pre-built hosted checkout. A developer staging sandbox is available with instant test API keys.

Do you custody customer or merchant funds?

No. JamsrPay is non-custodial. We never hold your private keys or touch your balance sheet. Payments route directly from customer wallets to your designated merchant wallet address.

How does settlement work?

Once confirmed on-chain, JamsrPay instantly detects the transaction, cryptographically signs and broadcasts a webhook notification, and your funds settle directly to your self-custody wallet in real-time.

What are the processing fees?

Transaction fees start from just 0.4% + $0.25 with a 29-day free trial, 0% chargebacks, and zero monthly subscription fees. Volume rates scale down automatically to 0.25%.

STEP-BY-STEP INTEGRATION TUTORIALS

Master Web3 Crypto Payments With Detailed Integration Guides

Follow interactive code walkthroughs designed to take you from zero to production crypto payments in under 15 minutes.

Next.js

Beginner 5 min

How to Accept USDT & USDC Payments in Next.js 14 App Router

Step-by-step walkthrough of installing @jamsrpay/sdk, creating checkout sessions, and handling success callbacks.

Start Tutorial Guide

WooCommerce

Beginner 8 min

Setting Up Zero-Fee WooCommerce Crypto Payments

Install and configure the official JamsrPay WordPress plugin to accept crypto at checkout.

Start Tutorial Guide

Express

Intermediate 10 min

Verifying Webhook HMAC SHA-256 Signatures in Node.js

Ensure your payment fulfillment endpoints validate request origin and prevent replay attacks.

Start Tutorial Guide

Mobile POS

Advanced 15 min

Building an In-Person Mobile Crypto POS Register With React Native

Generate dynamic QR codes with locked transaction amounts and receive real-time websocket payment events.

Start Tutorial Guide

FAQ

Guides FAQ

No! All guides can be tested on local development networks or testnets completely free.