The Spanning Demo App is live! Check it out here: https://demo.spanning.network/
We have also published the open-source demo code and related JavaScript utilities.
Current Deployment
The Spanning Network is currently validated to receive requests, settle transactions, and write data to:
- Goerli
- Mumbai
- Fuji
With beta support for:
- Arbitrum Goerli (outbound requests only)
- Binance Smart Chain Testnet (outbound requests only)
Delegate Contract Addresses
Mainnets
| Network | Domain ID | Spanning Delegate Address | Spanning Address Library |
|---|---|---|---|
| Ethereum | 0x00000001 | Coming soon | 0x95e171b7ED0A147B51638d97aed92f15ffDE5f0D |
| Avalanche | 0x0000A86A | Coming soon | 0xF7139eA302b6735f57Ee9c563b547b295b25CedC |
| Arbitrum One | 0x0000A4B1 | Coming soon | 0x7Cdb610Ebd09B9f813EE2F5764d12898BC0286dC |
| Binance Smart Chain | 0x00000038 | Coming soon | 0xF7139eA302b6735f57Ee9c563b547b295b25CedC |
| Polygon | 0x00000089 | Coming soon | 0x1Cd3Ce05Ace44c3F4c560B0fcE0F39764030c299 |
Testnets
| Network | Domain ID | Spanning Delegate Address |
|---|---|---|
| Mumbai | 0x00013881 | 0x2e613A930149A86D2fc42Dfbc1C5A63619FB3Bcb |
| Fuji | 0x0000A869 | 0x9E6058C2bC70d11C7E2E4fF7128616C290374827 |
| Goerli | 0x00000005 | 0x33f69d8e62e38C28bd7f0cbc61af6Eb8a0b3EF77 |
Domain Server Contract Addresses
If you would like to deploy your Spanning Apps or tokens to Networks that aren't yet supported (like mainnets), you can! You will still need a valid Delegate interface address to pass to your smart contracts constructor. A valid Delegate that only provides Domain ID services and not crosschain message passing is available at:
@spanning/contracts/DomainServer.sol
| Network | Domain ID | Spanning Domain Server Address |
|---|---|---|
| Ethereum | 0x00000001 | 0x3D1dDEc86ad16c5c512683AE38fD04C173747dA1 |
| Polygon | 0x00000089 | 0x002a3e67b0a00d80bd559A89af00824ed75b1b91 |
| Avalanche | 0x0000A86A | 0xCE82B090e3Dbe16d3FD867cacc18DfE5171981bc |
| Arbitrum One | 0x0000A4B1 | 0x254c5372342fD4CDb88A5D8686AB4F538F516EdE |
| Binance Smart Chain | 0x00000038 | 0xCE82B090e3Dbe16d3FD867cacc18DfE5171981bc |
Beta Testnet Support
The following test networks are currently undergoing further validation and may experience some outages as Spanning Labs adds more node providers to the protocol to add more redundancy, decentralization, and robustness.
| Network | Domain ID | Spanning Delegate Address |
|---|---|---|
| Arbitrum Goerli (outbound requests only) | 0x00066EED | 0x2fC4e95D161D239073C2D2B7A6747b9d806c498D |
| BNB Testnet (outbound requests only) | 0x00000061 | 0x42692e5485062d2abE74E287d401604aE081668B |
Network fees
The Spanning Network is currently free to use and all gas fees associated with settling transactions to destination testnet chains are covered by Spanning Labs.
Spanning Labs continually tops-up gas from testnet faucets to make sure developers can experience uninterrupted service. If you would like to help out your fellow developers, we accept donations of testnet gas at:
0x4bD0f88CcaAcFFaCB05c83a0FB400f90120bC7dB