An accessible explainer for RelAI's Private Pool V2 — a Sapling-style ZK privacy pool for USDC on Solana. We use a bank vault metaphor that finally makes "anonymity set" click for non-cryptographers. **Slug**: private-pool-v2-bank-vault-metaphor
Walk through the full reverse-direction flow: an autonomous agent issues a private invoice, a buyer pays into a privacy pool, and the seller redeems with a zero-knowledge proof. Neither side reveals its wallet, the buyer cannot clawback, and the receipt is verifiable forever.
Walk through the full flow of two autonomous AI agents discovering each other, negotiating a service, and settling payment through a private shielded link. Neither agent ever reveals its wallet.
Send money privately using shielded links. Zero-knowledge cryptography hides payment details until claimed. Works on Solana with USDC.
Digital gift cards are fast, flexible, and easy to share. Here is why they remain one of the best products for gifting, customer acquisition, and retention online.
RelAI Payment Codes now support private claim links across Solana and EVM. Send USDC with a shareable link, keep the raw code hidden, and let recipients claim funds or reveal the code later.
RelAI introduces two payment code models on SKALE. Payment Requests: merchant creates a code, buyer pays. Payment Codes: buyer pre-signs a code, merchant redeems. Both use EIP-3009, both settle with zero gas.
The @relai-fi/x402 SDK now supports Dual-Channel payments — x402 and MPP (Machine Payment Protocol) running through the same middleware. One protect() call, two payment rails, and every plugin works identically across both.
The @relai-fi/x402 SDK now has four ERC-8004 plugins: score(), feedback(), solanaFeedback(), and submitRelayFeedback(). Build verifiable on-chain reputation for your API in minutes.