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Testnets – Golem Base

Golem Base provides public testnets for both Layer 2 and Layer 3. These networks are designed for testing, prototyping, and development with no real financial risk.

Golem Base L2 Testnet

The L2 testnet is an EVM-compatible rollup used for deploying smart contracts and interacting with DB-Chains.

Configuration

Network Name: Golem Base L2 Testnet-001 "Erech"
RPC URL: https://execution.holesky.l2.gobas.me
Chain ID: 393242
Currency Symbol: ETH
Block Explorer: https://explorer.golem-base.io

Need a MetaMask Faucet?

You can request free test tokens on our Golem Base Kaolin Faucet.

Golem Base L3 – DB-Chain Testnet "Kaolin"

You can connect to Golem Base L3 Testnet Kaolin directly using MetaMask or any Ethereum-compatible wallet.

Configuration

Network Name: Golem Base L3 Testnet "Kaolin"
RPC URL: https://kaolin.holesky.golem-base.io/rpc
Chain ID: 600606
Currency Symbol: ETH

L3 DB-Chains are blockchain-based databases accessed via SDKs or API.

How to Access

Use the Golem Base SDK (TypeScript, Python, Rust) or CLI to interact with DB-Chains:

  • Read/write structured data (put, get, update, delete)
  • Bridge test tokens between L2 and L3
  • Execute test smart contracts (experimental)

No MetaMask configuration is needed — the SDK handles authentication and access.

Notes

  • Testnets are unstable and may reset without notice
  • Tokens have no monetary value
  • Use Discord for updates and support

  • Wish to learn more?

    Golem Base introduces a novel architectural model for decentralized data infrastructure — designed to be modular, Ethereum-native, and accessible across both Web2 and Web3.

    For a complete overview:
    Read the Litepaper (PDF)

    It covers:

    • The structure and role of DB-Chains
    • How Golem Base aligns with Ethereum Layer 2/3 philosophy
    • Potential real-world use cases

    Golem Base Origins

    Golem Base was born from a need inside Golem Network — and grew into its own thing. Built by an independent team committed to the idea that data autonomy should be the norm, not the exception. Read more

  • Join the Community

    Stay connected and get help as you explore Golem Base.

    • Discord — Chat with the team and other developers in real time.
    • GitHub — Ask questions, share feedback, or explore new ideas.
    • Twitter (X) — Follow us for announcements, updates, and ecosystem highlights.
    • Blog — Read technical deep dives, tutorials, and project news.


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