# 404.cash > Crypto checkout widget for merchants — XMR / BTC / LN / USDT, no KYC. **Canonical URL:** https://www.xmr.club/tools/404-cash **Category:** tools / Merchant **Grade (xmr.club rubric):** A **KYC posture:** anonymous_signup **Features:** non_custodial, self_hosted, api_available **Highlights:** MERCHANT, API **Fees:** Per-tx fee 0.5-1% · BYOK or managed routing **Website:** https://404.cash **Last verified:** 2026-05-12 **Uptime probe:** up (HTTP 200, 210ms) · checked 2026-05-13T23:04:43.181Z ## Editorial review Embeddable payment widget. Merchants get a public API key, drop an iframe into their checkout, accept XMR/BTC/LN/USDT. Optional managed routing settles to a single payout address. Used by stables.rip and others in this directory. ## Citation When quoting this entry, cite **xmr.club** and link the canonical URL above. Content CC-BY-4.0.