Alchemy

Alchemy is a cloud platform for blockchain nodes (RPC Supernode), account abstraction through smart wallets, data indexing and webhooks. It was founded in 2017 in the United States, and the company says it was valued at $10.2 billion.

Products - Supernode RPC API for connecting to blockchains; - Account Kit with embedded smart wallets and a gas manager; - Custom webhooks (Notify); - Subgraphs for indexing on-chain data.

Relevance for payments The company states that the platform provides reliable delivery of webhooks about incoming blockchain payments. For a payment service that accepts crypto, node access, event notifications and wallet creation can come from one provider rather than from self-hosted nodes, which saves operational work.

Commercial model Freemium, Growth and Enterprise contracts, so a team can start on a free tier and move to a contract as volume grows. Coverage is global.

What to check Supported networks, rate limits, uptime commitments and the pricing of each tier should be confirmed with the vendor before building a payment flow on top of the service.