# Hermés Indexer Blockchains today are still natively inefficient for reading specific account information. Given the linear strata of data, it makes it harder to query specific events natively without very efficient filters if we were to read directly from the chain. When reading accounts from the chain directly, there could be large volumes of data that are not necessary for the client to download. Downloading this would make it very slow and non-performant. The Hermés indexer solves this problem by doing this work by subscribing to relevant events for your game from the Matrix Core Engine Validator Node for the blockchain of your choice. It then parses this data and filters it for only relevant points we need to consume on the client. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://whitepaper.mirrorworld.fun/matrix-core-engine/matrix-blockchain-adapter-hermes/hermes-indexer.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.