# Installation ### Installation Metra requires secure access to your **validator node’s Ledger API**. Your environment must provide: * A running Canton participant & validator node. * The Ledger API exposed either locally or through ingress. * Network topology where your party is allocated and available to transact. Ensure your validator node is reachable at a base URL that exposes both the **Ledger API** and the **Validator API** on the same domain or subdomain (e.g., `api.YOUR_DOMAIN`). #### Required URLs Metra needs the following: * **Ledger API:** `https://api.YOUR_DOMAIN/ledger-api` * **Validator API:** `https://api.YOUR_DOMAIN/validator-api` If these are already exposed by existing applications (e.g., Wallet UI or Utility), you may reuse the same ingress, as long as both services share a **single unified base URL**. --- # 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://hydrax.gitbook.io/metra-docs/onboarding/quickstart/installation.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.