Chain IDs & parameters
Chain IDs
| Network | Chain id | Hex | Status |
|---|---|---|---|
Local dev chain (xdevs run --dev) and local test networks (xdevs-cli testnet init) | 7117 | 0x1bcd | Works today, local only |
Public testnet (xdevs-testnet-1) | To be announced | Coming soon | |
| Mainnet | Not planned yet |
About 717171
The SDK's xdevsTestnet and some examples use 717171 as a placeholder. It is not registered and may change. The real testnet chain id will be published on this site and registered on chainlist when the public testnet launches.
Chain id 7117 is for local development only. Never assume a transaction signed for 7117 is safe to replay elsewhere; any two people's local chains share it.
Wallet parameters (local dev chain)
| Field | Value |
|---|---|
| Network name | xDEVS Dev (local) |
| RPC URL | http://127.0.0.1:8545 |
| Chain ID | 7117 |
| Currency symbol | tXDS (18 decimals) |
| Block explorer | none |
The SDK can add the network with addXdevsChainToWallet(wallet, xdevsDevnet).
Protocol parameters
| Parameter | Dev chain today | Planned testnet v1 |
|---|---|---|
| Block time | 2 s (configurable) | 2 s, then 1 s target |
| Block gas limit | 30,000,000 | 30,000,000 (tuned by benchmark) |
| Min base fee | 0.1 gwei | 0.1 gwei |
| Base fee max change | 12.5% per block | 12.5% per block |
| Base fee split | 80% burn / 20% treasury | 80% burn / 20% treasury |
| Max tx size (gossip) | 128 KiB | 128 KB |
| EVM rules | Osaka | Osaka |
| XIP-0001 (EOA lock) | Active from genesis | Active from genesis |
| Epoch length | n/a (static validator set) | 3,600 blocks |
| Max validators | Set in genesis | 100 |
| Guardian Vault default delay | 24 h (1 h–7 d, per account) | Same |
| Social recovery delay | 48 h (1 h–30 d, per account) | Same |
Planned values come from §33.1 of the implementation plan and may change before launch.
Transaction types
| Type | Supported |
|---|---|
| 0 Legacy (EIP-155) | Yes |
| 1 EIP-2930 access list | Yes |
| 2 EIP-1559 | Yes |
| 3 EIP-4844 blob | No (rejected) |
| 4 EIP-7702 set-code | Yes (subject to XIP-0001) |