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Deterministic mid-task utilities for AI agents: unit + currency conversion by ratio, timezone/date maths, cron expansion, entity extraction, format + JSON Schema validation, and CAIP-2 blockchain resolution (chain id <->...
Look up any EVM chain by chain ID or name (8453, base, arbitrum): chain ID in decimal and hex, native currency, public RPC URLs, block explorers and testnet flag. Use to configure wallets, RPCs or cross-chain apps.
Get the Base chain id, 8453. One call confirms the network. $0.005 USDC. Included in the hour pass. Includes a signed Base fact you can check with the published receipt key. Includes a signed Ed25519 receipt you can chec...
EIP-155 chain id, confirmed from the node itself — Genesis402 / UnyKorn Operator Network
Live state of an EVM network: chain ID, latest block number and age, gas price, base and priority fee, block gas use and tx count. Use as a health check before sending transactions.
Base mainnet chain ID (EIP-155) via eth_chainId - confirm which network you're actually talking to.
The EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free publi...
Base transaction explained from the chain: success or reverted, block and time, from, to, ETH value, method selector, gas used and fee, contract created, and every ERC-20 transfer decoded with token symbol and amount. In...
Look up supported blockchain network metadata and chain IDs for $0.001 USDC. Static first-party registry only—no live RPC, balances, blocks, receipts, gas, or contract reads. Call when you need this bounded result withou...
Chain info on Base (cycle 228, x402 $0.01) - GET ?sample=1|2|3 OR POST application/json {}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. One-call chain state snapshot: the chain...