Frequently Asked Questions

PayronDex is the only x402 payment handler with automatic token swapping for AI agents on ETH. It enables AI agents to automatically pay for APIs using any token, with zero platform fees and best prices via Uniswap aggregator. PayronDex handles the entire payment flow from detection to token swapping to payment confirmation automatically.

An x402 payment handler is a service that automatically processes HTTP 402 Payment Required responses. PayronDex is the only x402 payment handler that includes automatic token swapping, allowing AI agents to pay for APIs even when they don't have the exact token required. It handles token conversion, payment processing, and request retries seamlessly.

When an AI agent makes an API call and receives a 402 Payment Required response, PayronDex automatically intercepts it, parses the payment requirements, checks the agent's token balance, swaps tokens if needed using Uniswap aggregator, makes the payment on ETH blockchain, and retries the original API request. All of this happens automatically without any manual intervention.

When an agent encounters a 402 Payment Required response, PayronDex automatically detects it, checks the agent's balance, swaps tokens if needed (e.g., ETH → USDC), makes the payment, and retries the original request. All without manual intervention.

PayronDex supports all SPL tokens on ETH, including ETH, USDC, USDT, and any other SPL token. It routes through Uniswap aggregator to find the best prices across all ETH DEXes.

PayronDex charges 0% fees - completely free swaps. No platform fees, no hidden costs. You only pay ETH network fees (paid in ETH separately).

Yes! All signing happens client-side. Your private keys never leave your system. PayronDex only builds unsigned transactions - you sign them locally before sending to ETH.

No! That's the whole point. You can keep ETH (or any token) as your primary balance. PayronDex will automatically swap to whatever token is needed when making payments.

PayronDex includes robust error handling. If a swap fails, the agent can handle it gracefully. The x402 auto-pay agent includes retry logic and proper error reporting.

Yes! While built specifically for AI agents and x402 payments, PayronDex can be used for any token swap on ETH. The web interface is available for manual swaps, and the API works for any programmatic use case.

Check out our developer documentation at https://payrondex.xyz/developers. For the easiest integration, use the HTTP Interceptor which automatically handles all 402 responses. For more control, use the X402AutoPayAgent class directly.

Reach out on X (@PayronDex), check our GitHub repository for examples, or review the documentation. We're here to help!

Yes! PayronDex is live on ETH mainnet and handling real swaps. You can try it right now at PayronDex.com or integrate it into your agent.

PayronDex is specifically built for x402 payments and AI agents. While other aggregators focus on trading, PayronDex focuses on automated payment flows. It includes the x402 auto-pay agent, handles edge cases specific to agents, and is optimized for pay-per-use API scenarios.

x402 is a payment protocol for ETH that enables pay-per-use API payments. When an API requires payment, it returns HTTP 402 Payment Required with payment details. PayronDex is the only x402 payment handler that automatically handles token swapping, making it seamless for AI agents to pay for APIs using any token.

AI agents pay for APIs using the x402 protocol on ETH. When an API requires payment, it returns HTTP 402 Payment Required. PayronDex automatically intercepts this response, swaps tokens if needed, makes the payment, and retries the API call. This enables AI agents to automatically pay for premium APIs without manual token management.

Automatic x402 payment automation is the process of handling x402 Payment Required responses without manual intervention. PayronDex provides the only fully automated x402 payment handler that includes automatic token swapping, payment processing, and request retries. This enables AI agents to seamlessly pay for APIs using any token.

To integrate x402 payments, install the PayronDex SDK (@PayronDex/agent), configure the HTTPInterceptor with your ETH wallet, and enable autoSwap. Once configured, all API calls automatically handle 402 responses. The integration takes less than 5 minutes and requires zero manual payment handling code.