
Helio
A crypto checkout platform that lets 6,000+ merchants accept stablecoin and token payments on Solana, Base, and Polygon.

What is Helio?
Helio is a self-serve crypto checkout used by 6,000+ merchants and apps to accept stablecoin, SOL, and ERC-20 payments via no-code paylinks, embeddable widgets, Shopify and WooCommerce plugins, and a Solana Pay API. Buyers pay from any wallet on Solana, Base, or Polygon, and merchants can off-ramp to fiat. Helio was acquired by MoonPay in 2024.
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Developer resources from Alchemy

EIP-3074 vs EIP-7702 vs ERC-4337: complete developer guide
Compare EIP-3074, EIP-7702 & ERC-4337: Ethereum account abstraction approaches, features and trade-offs.

x402 vs MPP: comparing agent payment protocols
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How Exa App reimagined banking with smart wallets
Case study: How Exa App transformed crypto banking with smart wallets, eliminating gas fees and seed phrases for users while reducing their costs by 20x
Helio alternatives
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App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

