# Espresso Chains Reference

The following are Espresso-integrated chains and useful information about them, such as RaaS provider, the main public RPC or the Espresso's Caff Node available (if any).

To learn more about Caff Nodes, check out [this page](/network/concepts/read-from-network.md).

### Celo (Devnet - unstable)

* **Sequencer's RPC:** <https://sequencer-geth.op-devnet.devnet.on.espresso.network>
* **Espresso's Caff Node:** <https://caff-node-geth.op-devnet.devnet.on.espresso.network>
* **Block Explorer:** <https://celo-x-espresso.cloud.blockscout.com/>

### ApeChain

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://rpc.apechain.com/http>
* **Caldera's Hub:**: <https://apechain.hub.caldera.xyz/>

#### Testnet

* **Caldera's RPC:** <https://apechain-tnet.rpc.caldera.xyz/http>
* **Caldera's Hub:**: <https://apechain-tnet.hub.caldera.xyz/>
* **Espresso's Caff Node:** <https://apechain.caff.testnet.espresso.network/>

### Rari

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://rari.calderachain.xyz/http>
* **Caldera's Hub:**: <https://rari.hub.caldera.xyz/>

#### Testnet

* **Caldera's RPC:** <https://rari-testnet.calderachain.xyz/http>
* **Caldera's Hub:**: <https://rari-testnet.hub.caldera.xyz/>
* **Espresso's Caff Node:** <https://rari.caff.testnet.espresso.network/>

### AppChain

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://rpc.appchain.xyz/http>
* **Caldera's Hub:**: <https://appchain.hub.caldera.xyz/>

#### Testnet

* **Caldera's RPC:** <https://appchaintestnet.rpc.caldera.xyz/http>
* **Caldera's Hub:**: <https://appchaintestnet.hub.caldera.xyz/>
* **Espresso's Caff Node:** <https://appchain.caff.testnet.espresso.network/>

### Molten

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://molten.calderachain.xyz/http>
* **Caldera's Hub:**: <https://molten.hub.caldera.xyz/>

### T3rn

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://t3rn.calderachain.xyz/>
* **Caldera's Hub:**: <https://t3rn.hub.caldera.xyz/>

### NodeOps

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://nodewatch-network.rpc.caldera.xyz/http>
* **Caldera's Hub:**: <https://nodewatch-network.hub.caldera.xyz/>

#### Testnet

* **Caldera's RPC:** <https://nodeops-orchestrator-network.calderachain.xyz/http>
* **Caldera's Hub:**: <https://nodeops-orchestrator-network.hub.caldera.xyz/>

### Rufus

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://rufus.calderachain.xyz/http>
* **Caldera's Hub:** <https://rufus.hub.caldera.xyz/>

#### Testnet

* **Caldera's RPC:** <https://rufus-sepolia-testnet.rpc.caldera.xyz/http>
* **Caldera's Hub:** <https://rufus-sepolia-testnet.hub.caldera.xyz/>

### Huddle01

* **RaaS provider:** Caldera.

#### Mainnet

* **Caldera's RPC:** <https://huddle01.calderachain.xyz/http>
* **Caldera's Hub:** <https://huddle01.hub.caldera.xyz/>

#### Testnet

* **Caldera's RPC:** <https://huddle-testnet.rpc.caldera.xyz/http>
* **Caldera's Hub:** <https://huddle-testnet.hub.caldera.xyz/>


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