> ## Documentation Index
> Fetch the complete documentation index at: https://docs.initia.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Overview of the Initia Router API for cross-chain asset transfers.

The Router API supports cross-chain transfers from Initia Stack-based chains to
external networks, automatically determining the optimal route across supported
networks, chains, and DEXes.

## Base URL

The Router API is available at the following base URL:

* Mainnet: `https://router-api.initia.xyz`
* Testnet: `https://router-api.initiation-2.initia.xyz`

## Features

* **Asset Queries** — Query supported fungible assets and chains across Initia
  and external networks
* **Balance Queries** — Fetch token balances and USD values across multiple
  chains
* **Route Computation** — Find optimal transfer paths between any supported
  source and destination
* **Transaction Generation** — Get signable transaction messages for computed
  routes
* **Transaction Tracking** — Monitor cross-chain transfer progress
* **NFT Transfers** — Bridge NFTs across Initia L1 and L2 chains via ICS-721