Supported networks - 4Mica docs

4Mica uses network IDs so buyers, sellers, SDKs, and facilitator calls all refer to the same chain. Use the network ID in payment requirements, SDK configuration, and scheme registration. Use the API URL when your server talks to the 4Mica facilitator for that network.

Values

Base
Network ID: eip155:8453
API URL: https://base.api.4mica.xyz/
Use for: Production

Base Sepolia
Network ID: eip155:84532
API URL: https://base.sepolia.api.4mica.xyz/
Use for: Development, examples, demos, and integration testing

Ethereum Sepolia
Network ID: eip155:11155111
API URL: https://ethereum.sepolia.api.4mica.xyz/
Use for: Ethereum testnet compatibility and cross-network testing

Choosing a network

Start with Base Sepolia for most development work.
Use Ethereum Sepolia only when your test flow needs Ethereum Sepolia.
Use Base when you are ready for production traffic.