# Construction API The construction API allows for offline signing of transactions and then posting them on ICP at a later point in time. It is recommended to first go through [flow of operations](https://internetcomputer.org/docs/defi/rosetta/icp_rosetta/construction_api/operations-flow) of the construction API to gain an understanding of how it works, what endpoints to call with what parameters, and where the user has to take action upon receiving certain responses. --- # 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.validationcloud.io/v1/icrc/construction-api.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.