> For the complete documentation index, see [llms.txt](https://870167019.gitbook.io/blockchainspider/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://870167019.gitbook.io/blockchainspider/transaction-spiders/overview.md).

# Overview

The transaction spiders aim at collecting block data. BlockchainSpider supports to collect the blocks data of Ethereum and Ethereum-like blockchain (e.g., BNBChain, Polygin, etc.) until now.

* `trans.block.evm`: transaction spider in the block order.
* `trans.evm`: transaction spider for specific transaction hash.

The next sections will introduce more configurations about the transaction spiders.