generated: '2026-07-21' method: searched source: https://docs.zircuit.com/infra/rpcs description: >- Zircuit's sandbox is the Garfield public testnet — a full EVM test network that mirrors mainnet for deploying and exercising contracts before going live. Test/live separation is by chain ID and endpoint host, the standard blockchain testnet model (there are no secret test API keys). testnet: name: Garfield Testnet chain_id: 48898 rpc_http: https://garfield-testnet.zircuit.com rpc_ws: wss://garfield-testnet.zircuit.com explorer: https://explorer.garfield-testnet.zircuit.com/ mainnet: name: Mainnet chain_id: 48900 rpc_http: https://mainnet.zircuit.com rpc_ws: wss://mainnet.zircuit.com explorer: https://explorer.zircuit.com/ simulation: docs: https://docs.zircuit.com/infra/simulation description: >- Transaction simulation surface lets developers test, debug, and analyze transactions before executing them on the live network. gud_trading_engine: note: >- GUD Trading Engine API keys are provisioned by the Zircuit team and shared at hackathons; the docs publish no standalone hosted test key. notes: >- No fabricated test values. Blockchain testnets require test ETH from a faucet; the docs do not publish a specific faucet URL on the RPC page.