x420dog.x420.dev exposes a single programmatic endpoint to buy x420dog tokens on the Base network. The /api/puff-custom endpoint accepts a custom USDC amount and swaps it into the x420dog token (contract 0xe44DE6EaaA85e5C55D1EeF8fBB1785B03dcD3B07). Requests are priced at $5 per call, making this API suitable for lightweight DApp, bot, and backend integrations that need on‑demand token purchases.