The Bank Vault In The Dark: A Plain-English Metaphor For Private Pool V2
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
Why Digital Gift Cards Still Win Online
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.
Private Claim Links for Solana and EVM: Send USDC Without Exposing the Code
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.
Two Ways to Pay: Payment Requests and Payment Codes on SKALE
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.
Dual-Channel Payments: One SDK, Two Protocols - x402 and MPP Side by Side
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.
ERC-8004 Reputation Plugins: On-Chain Trust for Every x402 API
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.
Your AI Agent Now Has Its Own Wallet
RelAI now supports Crossmint Server Wallets — persistent, backend-controlled wallets that let AI agents pay for services autonomously, without any user session or private key management.
Stop paying for broken x402 endpoints - four plugins that fix the problem
x402 micropayments are instant and irreversible. If the endpoint is down, your money is gone. We built four SDK plugins that make sure buyers never pay for a broken service.
SDK Plugins: Give Buyers Free API Calls Before Payment Kicks In
The @relai-fi/x402 SDK now supports plugins. The built-in Free Tier plugin lets you offer free API calls per buyer before x402 payment kicks in — three lines of code, zero infrastructure.