rpc

# Multi-chain RPC — every supported chain, one tool `blockrun_rpc` POSTs a standard JSON-RPC 2.0 body to `/v1/rpc/{network}`. Flat **$0.0030 per call** ($0.002 base + the $0.001 transaction fee). A JSON-RPC **batch array charges per element but pays the flat fee only once** — $0.002 × n + $0.001, so a batch of 3 costs $0.0070 where three separate calls cost $0.0090. Batch whenever you can. Settlement in USDC via x402. Responses are cached briefly server-side for identical read calls (`X-Cache: HIT` is free of upstream latency but still billed). ## When to use which tool | Question | Tool | |---|---| | "What's ETH trading at?" | `blockrun_price` (free) | | "PEPE/WETH pool liquidity?" | `blockrun_dex` (free) | | "What's this wallet holding?" | `blockrun_rpc` (labels: no tool since Surf was retired 2026-09-06) | | "Call `balanceOf(0x...)` on this ERC-20" | **`blockrun_rpc`** | | "Latest block / tx receipt / event logs / gas price" | **`blockrun_rpc`** | | "Solana account info / slot / signatures" | **`blockrun_rpc`** | ## Networks EVM (use `eth_*` methods): | Key | Chain | | Key | Chain | |---|---|---|---|---| | `ethereum` | Ethereum | | `zksync` | zkSync Era | | `base` | Base | | `berachain` | Berachain | | `arbitrum` | Arbitrum One | | `unichain` | Unichain | | `arbitrum-nova` | Arbitrum Nova | | `monad` | Monad | | `optimism` | Optimism | | `chiliz` | Chiliz | | `polygon` | Polygon | | `moonbeam` | Moonbeam | | `bsc` | BNB Smart Chain | | `aurora` | Aurora | | `avalanch...