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%.

How does non-custodial processing protect my business?

Unlike centralized crypto processors that hold your funds in custodial balances, JamsrPay routes customer payments on-chain directly to your private or cold storage wallet addresses. We never hold custody of your funds, eliminating account freezes, withdrawal limits, or counterparty insolvency risks.

Do I need to complete complex KYC to start accepting crypto?

Because JamsrPay is purely non-custodial and operates on-chain without holding custody of user funds, merchants can generate API keys and start accepting crypto immediately without paperwork delays.

How do I create an account and start accepting crypto?

Signing up takes less than 2 minutes. Create your account, enter your receiving wallet addresses (e.g. USDT-TRC20, SOL, Polygon, Ethereum), generate an API key, and choose your integration method (Hosted Checkout, REST API, or Plugin).

Which cryptocurrencies and blockchain networks are supported?

We support USDT, USDC, EURC, BTC, ETH, SOL, TRX, BNB, POL (Polygon), LTC, and more across all major EVM networks, Solana, and TRON. We also support multi-chain token swaps for seamless settlements.

How fast are customer payments detected and confirmed?

Our blockchain listeners detect pending transactions in under a second (sub-second mempool monitoring). Payment confirmations are validated as soon as the respective blockchain achieves consensus (e.g. seconds on Solana, Polygon, and Tron).

Are there chargebacks or fraud risks with crypto payments?

No. All cryptocurrency transactions are mathematically final once confirmed on the blockchain. Chargeback fraud and friendly fraud common in credit card processing are completely eliminated.

Can I customize the checkout experience to match my brand?

Yes! JamsrPay offers both fully hosted checkout pages and headless UI components. You can customize branding, colors, logos, and redirect URLs, or build completely custom checkout flows using our REST API.

What happens if a customer underpays or overpays an invoice?

Our system detects the exact amount transferred. If a customer underpays, the payment modal dynamically displays the remaining balance needed to complete the order. For overpayments, the webhook sends the full amount received so your backend can credit the customer accordingly.

How do mass payouts and payroll disbursements work?

You can disburse payments to thousands of recipient wallets simultaneously by uploading a CSV spreadsheet or triggering batch transfers via REST API. Our smart contracts bundle transfers, saving up to 70% on blockchain gas fees.

Can payouts be split between multiple parties automatically?

Yes. JamsrPay supports automated revenue splitting and marketplace disbursements. A single incoming customer payment can be programmatically divided between vendor wallets and marketplace fee accounts in real time.

What blockchains support automated batch payouts?

Batch mass disbursements are supported across TRON (USDT-TRC20), Solana (SOL, USDC, USDT), Polygon (USDT, USDC, POL), Ethereum, and BNB Chain.

What transaction fees does JamsrPay charge?

JamsrPay charges a transparent, low fee of 0.4% + $0.25 per settled transaction. There are 0 setup fees, 0 monthly recurring maintenance charges, and no hidden minimums.

How can I apply for high-volume enterprise rates?

If your platform processes over $100,000 per month in volume, contact our team via Telegram (@jamsrpay) or email support@jamsrpay.com for personalized volume tier pricing.

Are there any hidden withdrawal or payout fees?

No. Since JamsrPay settles customer transactions directly into your private wallet in real time, you never have to pay withdrawal fees to access your funds.

How quickly can our engineering team integrate the API?

Most developers go live in under 30 minutes. We provide comprehensive REST API documentation, SDKs, signed webhook verification helpers, and ready-made checkout integration starters.

Do you provide webhooks for real-time payment notifications?

Yes. JamsrPay sends cryptographically signed HMAC-SHA256 webhook payloads to your server endpoints for every payment lifecycle event (payment received, confirmed, underpaid, overpaid, or expired).

Is there a sandbox or testnet environment for testing?

Yes! You can toggle between Testnet/Sandbox and Mainnet modes in the developer dashboard to test payment intents, simulate webhooks, and test edge cases before going live.

Which e-commerce platforms and CMS plugins are available?

We offer plug-and-play plugins for WooCommerce / WordPress, Shopify, Magento, PrestaShop, OpenCart, and WHMCS. Installation requires zero coding and takes less than 5 minutes.

Can I use JamsrPay for in-person Point of Sale (POS) payments?

Yes. You can generate dynamic, scannable QR codes for mobile POS registers, retail tablets, or physical invoices with real-time on-screen payment confirmation.

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JamsrPay is a next-generation non-custodial crypto payment gateway. We provide global checkout widgets, automated mass payouts, e-commerce plugins, and developer APIs that allow online businesses to accept cryptocurrencies directly into their self-custody wallets with zero middlemen.

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