Syndica ChainStream API

ChainStream is Syndica's real-time Solana data streaming API. It consolidates updates from multiple validators using a "fastest wins" strategy so the subscriber benefits from the lowest-latency notification across the validator set, and offers an optional `verified` parameter that delivers only transactions confirmed by multiple validators at `processed` commitment. ChainStream uses JSON-RPC 2.0 over WebSocket (`wss://chainstream.api.syndica.io/api-key/`) and supports `transactionsSubscribe`, `slotsSubscribe`, and encoded `blocksSubscribe` against `solana-mainnet` (devnet coming). Production users have cut limit-order time-to-fill from 10s to 300ms with it.