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

# Overview

Data Catalog is a system for organising and managing data assets. Its main function is to help you discover, understand and manage data resources. Here is a detailed description of the data discovery catalogue from chainbase.

## Supported Blockchains - Raw Data Access

<table>
  <tr>
    <th>**Ecosystem**</th>
    <th>**Blockchains Supported**</th>
    <th>**Raw Data**</th>
    <th>**Freshness**</th>
  </tr>

  <tr>
    <td rowspan="6">**EVM**</td>
    <td>Ethereum</td>
    <td>✔</td>
    <td>\<3s</td>
  </tr>

  <tr>
    <td>Binance Smart Chain (BSC)</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td>Polygon</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td>Avalanche (C-Chain)</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td>Fantom</td>
    <td>✔</td>
    <td>\<8s</td>
  </tr>

  <tr>
    <td>Tron</td>
    <td>✔</td>
    <td>\<10s</td>
  </tr>

  <tr>
    <td rowspan="5">**EVM Layer 2**</td>
    <td>Arbitrum</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td>Optimism</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td>Base</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td>Blast</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td>ZkSync</td>
    <td>✔</td>
    <td>\<5s</td>
  </tr>

  <tr>
    <td rowspan="5">**Non EVM**</td>
    <td>Bitcoin</td>
    <td>✔</td>
    <td>\<60s</td>
  </tr>

  <tr>
    <td>Sui</td>
    <td>✔</td>
    <td>\<10s</td>
  </tr>

  <tr>
    <td>Ton</td>
    <td>✔</td>
    <td>\<10s</td>
  </tr>

  <tr>
    <td>Merlin</td>
    <td>✔</td>
    <td>\<30s</td>
  </tr>

  <tr>
    <td>*Solana\**</td>
    <td>\*</td>
    <td>\*</td>
  </tr>
</table>

\* *support is in progress..*

> For decoded data, abstracted data, token data, and NFT data, please refer to our [Web3 API documentation](https://docs.chainbase.com/resources/platform/features/api/web3-api).