> ## Documentation Index
> Fetch the complete documentation index at: https://docs.allium.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

<Info>
  **Optimism Sepolia is currently in Beta mode.**

  Backfills and verifications are ongoing.
</Info>

Optimism Sepolia is the official testnet for Optimism, an EVM-equivalent Layer 2 rollup on Ethereum providing low fees and fast transactions.

<Card href="https://docs.optimism.io/builders/tools/build/faucets">
  More about Optimism Sepolia
</Card>

### Optimism Sepolia Tables

Our Optimism Sepolia data includes the following schemas and tables:

| Schema | Description          | Tables                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| ------ | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Raw    | Raw blockchain data. | [blocks](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/blocks), [contracts](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/contracts), [erc1155\_tokens](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/erc1155-tokens), [erc20\_tokens](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/erc20-tokens), [erc721\_tokens](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/erc721-tokens), [fungible\_tokens](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/fungible-tokens), [logs](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/logs), [traces](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/traces), [transactions](/historical-data/supported-blockchains/evm/optimism_sepolia/raw/transactions) |