Testnet
This page documents the Ethera Sepolia testnet environment used for development and integration testing.
For contract descriptions and related references, see Smart Contracts.
Available Testnet Networks
| Network | Chain ID | RPC URL | Explorer URL |
|---|---|---|---|
| Sepolia | 11155111 | https://ethereum-sepolia-rpc.publicnode.com | https://sepolia.etherscan.io/ |
| Rollup A | 555555 | https://rpc-a-altda.sepolia.ethera-labs.io/ | https://rollup-a-altda.explorer.sepolia.ethera-labs.io/ |
| Rollup B | 666666 | https://rpc-b-altda.sepolia.ethera-labs.io/ | https://rollup-b-altda.explorer.sepolia.ethera-labs.io/ |
Paymaster endpoint for both rollups: https://paymaster-altda.sepolia.ethera-labs.io/rpc/v1
Bridging from Sepolia
Use these Layer 1 bridge addresses when bridging from Sepolia into Ethera rollups.
| Destination | Bridge Contract Address |
|---|---|
| Rollup A | 0xF3504fc6AAB6Da84cc466bB707a109a8824a0c24 |
| Rollup B | 0x30Fdb3B0035828372a9Df4D2F6B66CA27529C9B0 |
Bridging Between Rollups
Use the Universal Bridge for rollup-to-rollup transfers.
| Contract | Address |
|---|---|
| ComposeL2ToL2Bridge | 0x57d93F3E2fD17E3e42A24F113D5728441Bf79cb3 |
Withdrawing to Sepolia
Use these contracts for withdrawals from Ethera rollups back to Sepolia.
Rollup A
| Contract | Address |
|---|---|
| L2ComposeBridge | 0xa48CC954531A24c737f496C60daa44ABAd8475ab |
| ComposePortal | 0xbc2e5a158b9d3ea5ff145ea261736ab0ca6517f9 |
Rollup B
| Contract | Address |
|---|---|
| L2ComposeBridge | 0xcF29d49571A5Cd7350AE27951993e57a89743599 |
| ComposePortal | 0xd32ed6c0a353ae79e087890d0f86d53d78036055 |