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

# Product Stack

> The layered architecture behind LI.FI's universal market access.

LI.FI is built in layers. Each layer does a distinct job, and together they make it possible to move, swap, stake, and deploy assets across any chain in a single step.

<Steps titleSize="h3">
  <Step title="Embeddable Widgets & UI Components" icon="window">
    Plug-and-play swap and bridge interfaces any app can embed. Works out of the box, and fully customisable to match your product, from layout and branding to wallet handling. Compatible with React, Next.js, Vue, Svelte, and any modern web stack.

    [Explore the Widget →](/widget/overview)
  </Step>

  <Step title="Orchestration Layer" icon="sitemap">
    Knows where assets are, what they cost, and what yields are available across every supported chain. Finds the best route to execute any action and combines multiple steps into a single transaction where possible.
  </Step>

  <Step title="Composability Layer" icon="wand-magic-sparkles">
    Powered by [LI.FI Composer](/composer/overview). Goes beyond swapping and bridging. Users can deposit into yield vaults, stake into protocols, and chain together multiple actions across chains, all in one transaction.
  </Step>

  <Step title="Aggregation Layer" icon="layer-group">
    Most comprehensive meta-level aggregation in the market. Connects to dozens of DEXs and bridges across every major chain. Users get the best available price without needing to know which protocol powers it. Edge cases like wrapped token variants and non-EVM differences are handled quietly in the background.
  </Step>

  <Step title="Solver Network" icon="circle-nodes">
    A competitive network of solvers and market makers who bid to fill user trades. More competition means better prices and faster execution. LI.FI's own aggregation layer fills any gaps they leave. Solvers and market makers can plug in with their own liquidity and tap into LI.FI's order flow.

    [Sign up as a Solver →](https://intents.li.fi/)
  </Step>

  <Step title="Solver: LI.FI Pioneer" icon="rocket">
    LI.FI's own solver. Ensures trades always execute, even when third-party solvers can't fill. Also helps enterprises launch and distribute tokenised assets (RWAs, stablecoins) across LI.FI's network at scale.
  </Step>

  <Step title="DEX Aggregator: LI.FI Fly" icon="bolt">
    A DEX aggregator built for new and emerging chains. Gives users best-price swaps across every DEX on a chain from day one, and gives new chains instant access to competitive liquidity, including from private market makers.
  </Step>
</Steps>