Get detailed information about a specific blockchain: chain ID, RPC endpoints (HTTP/WebSocket/archive), native currency, block time, category, and links to docs.

Weekly auto-probed JSON-RPC method support matrix across all chains. Pass a method name to see per-chain support (yes/partial/no). Without a method, returns summary of all probed methods.

Fetch live flat-rate pricing plans from SwiftNodes: Free, Starter, Growth, Scale, Pro. Includes HTTP/WebSocket RPS limits, connection limits, and feature details. Falls back to bundled snapshot if live API unreachable.

List every blockchain SwiftNodes serves (75+ chains, one API key for all). Returns name, slug, chain ID, category, and docs page per chain. Use before get_chain if unsure of the exact chain name.

Diagnose any EVM JSON-RPC endpoint: check chain identity, block height, archive depth, and latency. Optionally call a specific method (e.g. eth_getBalance) with custom params. Minimal rpc-doctor-lite.