pong-pay-production.up.railway.app is a lightweight Base-network API exposing two simple endpoints for PONG token flow: a balance query and a presale mint. The balance endpoint returns settled PONG token balances for any EVM address (priced at 0.001 USDC on Base), while the presale endpoint mints 5,000 PONG for 1 USDC and returns a request ID after payment (sale capped at 100k USDC, 100% to liquidity, no team supply, no refunds). This provider is tailored to quick on-chain balance checks and an inexpensive, pure-meme presale minting flow — use with caution due to no refunds and limited token utility.