Hey HN, I just launched Atomic Stream: 16 live websocket feeds for Solana data – mempool txs, new blocks/slots, account updates, token prices, Jupiter swaps/perps, trending tokens, liquidity changes, etc. The twist is true pay-as-you-go via x402 (Coinbase's HTTP 402 protocol). No subscriptions, no accounts – you buy 5-minute time slices for a few cents up to ~$3 (mempool is the firehose, so priciest). Hit the schema endpoint, get the WS URL + exact USDC quote, pay on-chain, and the JSON stream unlocks instantly. Docs on the flow: https://docs.atomicstream.net/x402/overview Protocol background: https://www.coinbase.com/developer-platform/products/x402 TypeScript examples that handle auto-payment + renewal: https://github.com/mntgmry-tech/atomic-stream-examples Main site (stream list + pricing): https://atomicstream.net All streams: https://atomicstream.net/streams Some quick things this makes easy:

Wallet/account monitoring for instant alerts Mempool streaming for bots (arbitrage, sniping, etc.) Live Jupiter swap/perp fills or price feeds for dashboards Temporary trending/liquidity trackers without running your own node

Looking for early feedback – first 10 people who try it and share thoughts/bugs/ideas, I'll refund up to $20 worth of slices (just DM me on X @missionsquadai or reply here). Curious what people think about micropayments for infra like this. Anyone else playing with x402?

Show HN: Atomic Stream – pay-as-you-go real-time Solana data streams (x402)