This is exactly why we implemented Groth16 Zero-Knowledge proofs and Elgamal into ShadowPay. Scaling and Privacy on Solana bringing true private payments to the ecosystem.

You can’t bolt ZK onto x402 and call it privacy. If a facilitator settles your tx, it’s not zero-knowledge, it’s still a trusted middleman. We rebuilt x402 from the ground up using Groth16 proofs, ElGamal encryption and onchain nullfiers. No facilitators. No data leaks. Real

ShadowPay is the only private payment rails built for Solana, delivering full x402 support with end-to-end encryption via Groth16 proofs, ElGamal encryption, and on-chain bitmap nullifiers. radr.fun/pitchdeck

ShadowPay SDK is live on npm Build native X402 payment flows on Solana, fully private, gasless, and ZK-verified. 📦 @shadowpay/core 🧩 @shadowpay/client ⚙️ @shadowpay/server GitHub → github.com/Radrdotfun/sha… npm → npmjs.com/~radr Powered by $RADR

You can now build / ship your own paywalls with full privacy secured by Zero-knowledge proofs, Elgamal and bitmap nullifiers.

radr.fun is a privacy-first infrastructure protocol built on Solana, enabling zero-knowledge (ZK) payments, identity and communication for apps, APIs and AI agents. It brings privacy, payments, automation and verifiability together through advanced cryptography. Core

Privacy is important. ShadowPay doesn’t “wrap” a facilitator and pretend it’s private, we rebuilt the entire X402 flow from the ground up. No middlemen. No off-chain trust. Just true end-to-end encrypted payments with ZK verification and Elgamal. No one else in the space is

ShadowPay → Seeker | Solana Mobile Private payments, Groth16 proofs, Elgamal-encrypted balances and on-device key security with Seeker.

Zadar Zcash Zadowpay

New listing on Crafts 🚀 ShadowPay by radr.fun is now live on Crafts powering private, zero-knowledge payments on Solana. If you like what we’re building, drop a vote and help push privacy-native payments to the top. Vote: crafts.dev/crafts/cmhwy0x…