> For the complete documentation index, see [llms.txt](https://docs.xswap.link/xswap/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xswap.link/xswap/xline.md).

# XLine

## What is XLine?

XLine is the CCIP-orchestrated stablecoin infrastructure layer. It routes USDC across every chain Chainlink CCIP supports, any-to-any, including multi-hop paths when no direct lane exists.

USDC exists on most major chains, but it does not move freely between them. Each chain holds isolated liquidity, and moving value means selecting a bridge, evaluating its security model, and often accepting a wrapped variant. XLine removes that step. A chain or protocol integrates once and gains USDC movement to and from every other connected chain.

Key Features:

* Any-to-Any Routing: Route USDC between any two CCIP-enabled chains, resolved into a single path per transfer.
* Multi-Hop Paths: Where a direct lane exists, XLine routes through it. Where it does not, XLine constructs a multi-hop path across intermediate chains.
* Full Connectivity from One Integration: A chain connects to CCIP once. XLine maps the full network and handles reachability to every other connected chain. No need to establish individual lanes.
* Secured by Chainlink CCIP: Every path XLine constructs settles over CCIP and inherits its security model.

### How it works

XLine maps the full set of Chainlink CCIP lanes that exist between chains and treats them as a single routing network.

For each transfer, XLine resolves the path between the source and destination chain:

* Direct route when a CCIP lane exists between the two chains.
* Multi-hop route across intermediate chains when no direct lane exists.

Route selection, settlement, and completion happen inside the layer. The user or integrating protocol submits one transaction. The result is full network reachability without every chain pair requiring a direct connection.

### Secured by Chainlink CCIP

Every transfer routed through XLine settles over Chainlink CCIP.

CCIP is a cross-chain interoperability protocol built on Chainlink's decentralized oracle networks with a defense-in-depth security model. Cross-chain messages are independently verified by multiple oracle networks rather than a single bridge operator, and a separate Risk Management Network monitors transfers and halts execution on detection of an anomaly.

Because XLine does not operate a custom bridge, it adds no new trusted component. Transfers move over infrastructure that is already audited and in production use.

### For chains

A chain that integrates XLine gains bridgeable USDC and movement across the network without building or maintaining cross-chain infrastructure itself. 

For a newer chain, this provides mobile stablecoin liquidity from day one. For an established chain, it consolidates fragmented stablecoin variants into a single asset with a path to native USDC.

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