Custom EVM Chains
Add an EVM-compatible network, detect its chain ID, and understand feature limits.
Use Settings → Setup → Chains → Add Custom Chain when an EVM network is not in the built-in chain registry.
Add a chain#
- Paste a working RPC URL and click Detect.
- Zyper calls
eth_chainId, then looks up known metadata from the chainid.network registry. - Review or enter the chain ID, display name, native symbol, and optional explorer URL.
- Click Add Chain.
The RPC URL, chain ID, name, and symbol are required. Duplicate chain IDs are rejected. You can edit the RPC, name, symbol, and explorer later; the chain ID is immutable, so delete and re-add the chain to change it.
What custom support means#
The saved chain becomes available to compatible EVM pickers and provides its configured RPC and explorer. It does not automatically gain a Disperse contract, Multicall3 address, NFT batch helper, marketplace/indexer coverage, or chain-specific module support.
Basic JSON-RPC operations may work while a higher-level tool does not. Test a small balance read and low-value transaction before running a large task group. For contested mints, add dedicated endpoints on the RPC page instead of depending on one public URL.
Deleting the custom chain removes its local registry entry. It does not affect the network or undo transactions previously sent there.