How Can We Help You Build & Scale?
Search developer documentation, setup guides, API specs, and merchant account troubleshooting.
Developer Quickstart
Accept crypto payments in under 5 minutes with our React & Node.js SDKs.
Webhook Signature Guide
Learn how to verify HMAC payloads and handle auto-retry event queues.
API Keys & Security
Best practices for environment variables, key rotation, and IP restrict.
24/7 Developer Discord
Join our active Discord community to chat directly with integration engineers.
Interactive SDK Code Quickstart
Copy production-ready checkout integration code for your stack.
import { JamsrPayProvider, CheckoutButton } from "@jamsrpay/react";
export function App() {
return (
<JamsrPayProvider apiKey={process.env.NEXT_PUBLIC_JAMSRPAY_KEY}>
<CheckoutButton amount={49.99} currency="USDC" onSuccess={(tx) => console.log(tx)} />
</JamsrPayProvider>
);
}Knowledge Base Categories
Browse detailed articles and implementation guides by topic.
Account & Security
Managing merchant profiles, team permissions, 2FA, and security logs.
API & Webhooks
API keys, payload signatures, webhook retry schedules, and SDK setup.
Hosted Checkout & Links
Custom branding, payment links, checkout redirects, and custom domains.
Payout Wallets & Gas
Multi-chain payout addresses, auto-swap routing, and gas reservoirs.
Security & Audits
Compliance, smart contract audit reports, and fraud prevention rules.
Billing & Native Tokens
Understanding gateway fees, 30-day trial periods, and native token perks.
Featured Developer Video Tutorials
5-Minute React & Next.js Integration Walkthrough
Watch how to add JamsrPay checkout modal to your React application.
Verifying HMAC Webhook Signatures in Node.js & Go
Step-by-step code tutorial on validating payment signature headers.
Setting Up Multi-Chain Gas Reservoirs for Zero-Gas Buyer Pay
How to sponsor gas fees so buyers can pay without native ETH/MATIC.
Developer Community Chat
Have questions about webhooks, smart contracts, or SDKs? Connect directly with our core engineering team on Discord & Telegram.
Submit a Support Ticket
Need account recovery, custom rate limits, or billing assistance? Open a direct ticket for dedicated 1-on-1 merchant support.
FREQUENTLY ASKED QUESTIONS
Developer & Merchant FAQ
Everything you need to know about setting up payment gateways, security, and managing merchant stores.