Networks

Reef's networks.

Building today? If you are starting a new project, build against Reef Pelagia — the current testnet on Polkadot SDK stable2512 with the new pallet-revive EVM. The Legacy Reef networks below are maintained for existing deployments and will not receive new tooling support.

Reef Pelagia

Reef Pelagia is the active testnet for the next-generation Reef network. It runs on Polkadot SDK stable2512, executes smart contracts on PolkaVM via pallet-revive, and uses 12-decimal precision for the native REEF token. Pelagia is compatible with standard EVM wallets (MetaMask, Trust Wallet, Zerion, and others) through the “Add custom network” flow.

For the full overview, see the Pelagia Testnet page.

Note Pelagia testnet tokens have no real value. State may be reset on upgrades.

Pelagia info sheet

KeyValue
Name, PrecisionREEF, 12
SS58 Format42
EVM Chain ID13939
Native REEF (precompile address)0x0000000000000000000000000000000001000000
Block authoringBABE
FinalityGRANDPA
Block time10s
Polkadot SDK versionstable2512
Smart contract VMPolkaVM (pallet-revive)
Code blob size limit100 KB
HTTP RPChttps://eth.reef-node-reefdevcluster-808c46-72-60-35-83.nip.io/
FaucetSee Faucet
Block explorerSee Pelagia → Block explorer

Reef mainnet

The Legacy Reef mainnet went live on May 28th 2021.

Legacy Reef mainnet is now considered stable, and can be used for deployment of live smart contracts.

Legacy Reef Mainnet info sheet

| Key             | Value                                      |
| --------------- | ------------------------------------------ |
| Name, Precision | REEF, 18                                   |
| SS58 Format     | 42                                         |
| EVM chain id    | 13939                                      |
| REEF ERC-20     | 0x0000000000000000000000000000000001000000 |
| Block authoring | BABE                                       |
| Finality        | GRANDPA                                    |
| Block Time      | 10s                                        |
| Block Size      | 1.25MB to 3.75MB                           |
| HTTP RPC        | https://rpc.reefscan.com                   |
| Websocket       | wss://rpc.reefscan.com/ws                  |

Legacy Reef testnet

Reef testnet is a common playground for deploying and testing DeFi apps. It is recommended to first deploy apps on the testnet before launching on mainnet.

Testnet info sheet

| Key             | Value                                      |
| --------------- | ------------------------------------------ |
| Name, Precision | REEF, 18                                   |
| SS58 Format     | 42                                         |
| EVM chain id    | 13939                                      |
| REEF ERC-20     | 0x0000000000000000000000000000000001000000 |
| Block authoring | BABE                                       |
| Finality        | GRANDPA                                    |
| Block Time      | 10s                                        |
| Block Size      | 1.25MB to 3.75MB                           |
| HTTP RPC        | https://rpc-testnet.reefscan.com           |
| Websocket       | wss://rpc-testnet.reefscan.com/ws          |