Testnet is a separate environment
Robinhood Chain publishes a public testnet for development. Its test tokens have no production value, and a contract deployed there is separate from a mainnet contract. Supanode's production RPC documentation and a public testnet endpoint should not be treated as the same service.
Verify the configuration
| Setting | Mainnet | Testnet |
|---|---|---|
| Chain ID | 4663 / 0x1237 | 46630 / 0xb626 |
| Native gas currency | ETH | Test ETH |
| Public RPC | https://rpc.mainnet.chain.robinhood.com | https://rpc.testnet.chain.robinhood.com |
| Explorer | robinhoodchain.blockscout.com | explorer.testnet.chain.robinhood.com |
These values come from Robinhood's connection documentation, checked on 21 October 2026. Public endpoints are rate-limited; use them as development infrastructure with the documented constraints.
Run a read-only check
curl https://rpc.testnet.chain.robinhood.com \
-H "Content-Type: application/json" \
--data '{"jsonrpc":"2.0","id":1,"method":"eth_chainId","params":[]}'The expected chain result is 0xb626. Read the faucet linked by the official documentation for test ETH. Eligibility and cooldowns are faucet-specific, so do not bake an unverified allocation into an onboarding flow.
Promote deliberately
- Keep a dedicated test wallet with no production funds.
- Deploy and test a small contract, then save its address and compiler settings.
- Prepare a separate mainnet configuration and verify eth_chainId again.
- Redeploy intentionally and update contract addresses, explorer links and monitoring together.