# Transaction Building Services The transaction building service is responsible for creating staking transactions tailored to different staking protocols. After validation, these transactions are broadcast to the Bitcoin mainnet based on factors such as the estimated optimal transaction fee and the timing requirements of the staking protocols. All parameters of the constructed transactions are defined within the Staking Abstraction Matrix (SAM), allowing validators to perform the necessary verification. --- # 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://docs.solv.finance/staking-abstraction-layer-sal/architecture/the-technical-architecture/transaction-building-services.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.