llms.txt Content
# Shieldz
> Shieldz is a non-custodial crypto payment processor for merchants, freelancers, and creators. Accept USDC and USDT across five chains (Base, Arbitrum, Optimism, Polygon, Ethereum) plus native Bitcoin and shielded Zcash, with $0 platform fees and no KYC to start. For direct settlement (the buyer pays the same token the merchant receives), payments route straight from the buyer's wallet to the merchant's own wallet; Shieldz only watches the chain and tells you it landed. Optionally, buyers can pay in almost any coin, in which case the conversion is performed by independent, non-custodial swap protocols (NEAR, Chainflip, Relay) and the settled token still lands in the merchant's own wallet. Either way Shieldz never holds, freezes, or can seize funds. It takes no fee on the swap, except 0.15% on a swap paid through the checkout widget, which the buyer pays on top so the merchant still receives the full amount.
## What it is
- Non-custodial by design: funds settle directly to the merchant's own wallet. Shieldz never holds a key or a balance and cannot redirect, freeze, or skim payments.
- $0 platform fees: no transaction, percentage, affiliate, or take rate, merchants keep 100% and pay only the blockchain network gas.
- No KYC to start. No chargebacks. No account that can be frozen.
- Settle to: USDC/USDT on Base, Arbitrum, Optimism, Polygon, and Ethereum; native BTC; shielded ZEC (private, off-ledger).
- Pay with (swap-settle): buyers can also pay BTC, ETH, SOL, BNB, AVAX, LTC, DASH, BCH, TON, ZEC, NEAR, and stablecoins across chains, auto-swapped to the merchant's chosen token. Swaps route over independent protocols (NEAR, Chainflip, Relay) through Shieldz's own swap router.
- Hosted checkout pages, shareable payment links, a Stripe-style REST API, an official open-source Node/TypeScript SDK (@shieldz/sdk), HMAC-signed webhooks, test mode, and a Telegram bot.
## How it stays free
- $0 platform fee, no percentage of sales, ever. Shieldz takes no affiliate
OpenAPI Spec (preview)
{"openapi":"3.1.0","info":{"title":"Shieldz API","version":"1.0.0","description":"Non-custodial crypto payments. Create invoices, send buyers to a hosted checkout, and reconcile via signed webhooks. Funds settle straight to the merchant's own wallet, Shieldz only ever holds a public key. Sell from a catalog like Stripe: products with immutable prices, payment links (/l/{id}) and a buy button, so a buyer's browser never sets the price.","contact":{"name":"Shieldz","url":"https://shieldz.cash","em