# Gravity Alpha Mainnet & Sepolia Testnet (L2)

Currently, Gravity is at its Alpha Mainnet stage (an Ethereum Rollup using Arbitrum Nitro stack) as described in [this post](https://docs.gravity.xyz/overview/readme#id-51ef).

Gravity Alpha Mainnet can be added as a custom network to any EVM-compatible wallet (i.e. MetaMask).

## Network

### Gravity Alpha Mainnet

[*Add Gravity Alpha Mainnet to Metamask*](https://chainlist.org/chain/1625)

* Chain ID: 1625, `0x659`
* Currency Symbol / Native Token: `G`
* RPC Endpoint: [https://rpc.gravity.xyz](https://rpc.gravity.xyz/)
* Canonical Bridge: <https://bridge.gravity.xyz>
* Block Explorer:
  * [OKX Explorer](https://web3.okx.com/explorer/gravity-alpha)
  * [OKLink](https://www.oklink.com/gravity-alpha)
  * [Blockscout](https://explorer.gravity.xyz)
* Logo: <https://assets.gravity.xyz/chain_logo.png>, or [visit this link](https://gal.xyz/brand) for different versions

### Gravity Alpha Testnet Sepolia

{% hint style="info" %}
Gravity Alpha Testnet Sepolia was reset (pruned the state and started over with block height 0) on March 24th 2025 for testing Celestia DA.
{% endhint %}

[*Add Gravity Alpha Testnet Sepolia to Metamask*](https://chainlist.org/chain/13505)

* Chain ID: 13505, `0x34c1`
* Currency Symbol / Native Token: `G`
* RPC Endpoint: <https://rpc-sepolia.gravity.xyz>
* Canonical Bridge: [https://bridge-sepolia.gravity.xyz](https://bridge-sepolia.gravity.xyz/)
* Block Explorer: <https://explorer-sepolia.gravity.xyz>
* Logo: <https://assets.gravity.xyz/chain_logo.png>, or [visit this link](https://gal.xyz/brand) for different versions

## Chain Parameters

| Param                | Description                                                                                               | G Alpha Mainnet             | G Sepolia Testnet          |
| -------------------- | --------------------------------------------------------------------------------------------------------- | --------------------------- | -------------------------- |
| Dispute window       | Time for assertions to get confirmed during which validators can issue a challenge                        | 45818 blocks (\~ 6.4 days ) | 20 blocks (\~ 4.0 minutes) |
| Force-include period | Period after which a delayed message can be included into the inbox without any action from the Sequencer | 5760 blocks / 24 hours      | 5760 blocks / 24 hours     |
| Gas speed limit      | Target gas/sec, over which the congestion mechanism activates                                             | 20,000,000 gas/sec          | 7,000,000 gas/sec          |
| Gas price floor      | Minimum gas price                                                                                         | 1800 gwei                   | 0.1 gwei                   |
| Block gas limit      | Maximum amount of gas that all the transactions inside a block are allowed to consume                     | 32,000,000                  | 32,000,000                 |

NOTE: The parameters, including gas price and gas fee, will take effect at 12:00 PM on August 20, 2024, PDT. Until that time, the chain will operate using experimental parameters for internal testing purposes.\
NOTE: We lowered the gas price floor from 3600 gwei to 1800 gwei, effective from 12:00 PM on August 22, 2024, PDT.


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.gravity.xyz/network/using-gravity-alpha-mainnet-l2.md?ask=<question>
```

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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.