> ## Documentation Index
> Fetch the complete documentation index at: https://docs.b3.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# B3 Data API

> Get free access to indexed blockchain data from B3 & our appchains with our free API.

* Available to builders for free.
* Intelligent multi-chain routing.
* Cached at the edge for speed.

<Card href="/data/api-reference/blockscout/get-transactions" icon="database" horizontal arrow="true">
  Browse the REST API reference.
</Card>

## Data Sources & Intelligence

<Steps>
  <Step title="Blockscout Integration">
    Direct access to indexed blockchain data from Blockscout explorers across all B3 chains, providing transaction history, contract interactions, and block data.
  </Step>

  <Step title="Thirdweb Data Layer">
    Enhanced with Thirdweb's powerful data infrastructure for NFT metadata, contract ABIs, and smart contract analytics.
  </Step>

  <Step title="Intelligent Routing">
    Our API automatically routes requests to the optimal data source and chain, ensuring fast response times and data accuracy.
  </Step>

  <Step title="Unified Ecosystem View">
    Merged data from all B3 ecosystem chains provides a comprehensive view of cross-chain activities and assets.
  </Step>
</Steps>

## Authentication

No authentication required for public endpoints. Simply make requests to start accessing B3 ecosystem data immediately.

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