> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Via How the vault picks this link for the App, by the same selection egress uses. ## Example Usage ```typescript theme={null} import { Via } from "@openrouter/sdk/models"; let value: Via = "token"; // Open enum: unrecognized values are captured as Unrecognized ``` ## Values ```typescript theme={null} "app_link" | "token" | "any_link" | Unrecognized ```