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08 · Developers

The first hour is a wallet, a balance, and one real call.

You do not need the whole stack to start. You need the right network, testnet gas, and a check that the RPC you think you are calling is the RPC that answered.

01

Follow the hour in order

  1. 01Put Galileo in the walletChain id 16602, symbol 0G, 18 decimals. Then claim at faucet.0g.ai.
  2. 02Read the balance twiceOnce in the browser on this portal, once with cast balance --ether. They should agree.
  3. 03Open a deskMetaPlay if you are testing a social or prediction round. Comfy if you are launching on mainnet.
  4. 04Install the tools for your OSNode 20+, Git, Foundry, and the compute CLI. Windows reopens the terminal after winget.
  5. 05Make one model answerA Private Computer key and a chat completion. Credit is not the faucet.
  6. 06Tick the benchLeave the machine only when chain id, balance, and the tool versions passed.
02

Pick the desk before the dependency

A prediction round wants chain, storage for the sealed prompt, and compute for the judge. A launch on Comfy wants mainnet 0G and the live app at https://www.comfy.fun/. An agent that should be ownable wants Agentic ID on top of either of those, not instead of them.

Stay on Galileo until a transaction is boring. Mainnet tokens come from https://get.0g.ai. Compute credit comes from https://pc.0g.ai or from 0g-compute-cli deposit.

03

You are done with setup when

  • cast chain-id on the testnet RPC prints 16602.
  • The address that claimed has a non-zero balance in 0G, not only in wei you forgot to convert.
  • The same address is the signer in your .env or keystore. A second unused address is the usual reason a deploy says it is broke.
  • One of compute, storage, or a contract deployment has a receipt you can paste to someone else: a completion id, a root hash, or a transaction hash.