Recurring billing today means a payment processor, a registered company, a bank account, and a multi-day payout cycle. We built subscriptions that need none of that — recurring USDC on Solana, settled wallet-to-wallet, non-custodial.
RelAI gives you two ways to charge in USDC: x402 micropayments per call, and on-chain subscriptions per period. Here's the honest guide to picking the right one — and why most products end up using both.
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
RelAI's Private Pool V2 is a Sapling-style UTXO pool for USDC on Solana. Amounts hidden inside Poseidon commitments, internal transfers via JoinSplit2x2, persistent private balance, sponsored fees, ASP-gated compliance. Live on solana-devnet.
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.