generated: '2026-07-18' method: searched source: developers.flow.com testing/network docs note: >- Flow separates live (Mainnet) from test surfaces via distinct networks, not test key prefixes. Developers test against Testnet, a local Flow Emulator, or the Testnet Faucet. Values below are published verbatim; none are invented. networks: - name: Flow Mainnet rest: https://rest-mainnet.onflow.org/v1 live: true - name: Flow Testnet rest: https://rest-testnet.onflow.org/v1 live: false description: Public test network mirroring Mainnet for integration testing. emulator: name: Flow Emulator launch: flow emulator rest_default: http://localhost:8888/v1 description: Local single-node Flow blockchain shipped with the Flow CLI for offline development. faucet: url: https://testnet-faucet.onflow.org/ description: Funds Testnet accounts with test FLOW tokens; also creates test accounts. dev_tools: - name: Flow Dev Wallet launch: flow dev-wallet description: Local FCL-compatible wallet for testing authentication/signing flows against the emulator.