Developer Tools & Testnet

If you know Ethereum development tools, Seismic's tools will look familiar — they just have an s in front:

• sforge — Test and deploy your contracts (like Foundry's forge)
• sanvil — Run a local Seismic node on your computer for testing
• ssolc — Compile your Seismic contracts
• seismic-viem — Build frontends that work with Seismic (TypeScript library)

There's also a VSCode extension that adds syntax highlighting for shielded types.

Everything works the same way you're used to — just with added support for privacy features.

The Seismic testnet is live! Here's what you need:

Info	Value
Chain ID	5124
RPC URL	https://gcp-2.seismictest.net/rpc
Explorer	socialscan.io
Faucet	Get free test tokens
Block time	~500ms

1. Add the network to MetaMask — Chain ID: 5124, RPC: https://gcp-2.seismictest.net/rpc
2. Get test tokens from the faucet
3. Deploy your contract:

sforge create --rpc-url https://gcp-2.seismictest.net/rpc   --private-key YOUR_KEY   src/MyContract.sol:MyContract --via-ir

With 500ms blocks, your contract is live in under a second!