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

# What is Compass

> An autonomous USDC yield agent that routes funds across chains and protocols inside rules you set on-chain.

> Compass is a non-custodial AI agent for multi-chain USDC yield. You set the rules once on-chain; the agent routes funds across whitelisted chains and protocols, 24/7, without ever taking custody.

Compass turns "where should my USDC sit today" from a manual job into a
configuration. You hold the keys. The agent operates inside a policy you write
once and can revoke at any time.

<img src="https://mintcdn.com/compassai/Qq7UDvjWweIau4hP/images/what-is-compass-diagram.svg?fit=max&auto=format&n=Qq7UDvjWweIau4hP&q=85&s=5e3a82102857b55745708277ba21b957" alt="what is compass diagram" className="rounded-lg" width="1500" height="800" data-path="images/what-is-compass-diagram.svg" />

The agent moves capital between venues inside the boundary you set. The
withdraw path is outside the boundary — only your owner key opens it.

## What you get

A single USDC balance on Arc that earns from the best yield available on any
chain Compass supports, without you bridging, signing per-rebalance, or trusting
a custodian.

* **One balance, many chains.** Deposit USDC on Arc. The agent moves capital
  to other supported chains as opportunities change.
* **Rules you write, enforced on-chain.** A risk band (1–10), a protocol
  whitelist, and a chain whitelist — all checked at the contract level before
  any move executes.
* **Owner-only withdraw.** The agent can route; it cannot exit. You pull funds
  out anytime, with no agent cooperation required.
* **Every move on-chain.** Each rebalance is a transaction. Each decision has a
  logged reasoning trace.

## What it is not

* **Not a custodian.** Compass never holds your funds. Your smart account is
  yours; the agent has scoped permission to call specific functions on
  specific venues.
* **Not a vault product.** There is no pooled strategy. Your account routes
  your capital under your rules.
* **Not an LLM trading bot.** Routing decisions run on a deterministic
  evaluator. The LLM only handles chat and explanation. See
  [Chat agent](/architecture/chat-agent).

## Where it runs

Compass is live on **Arc Testnet** at
[usecompassai.com](https://usecompassai.com). For the current
list of supported chains and protocols, see
[Supported chains & protocols](/overview/supported-chains-protocols).

<Info>
  Compass is in testnet. Funds are not real. The mainnet timeline tracks Arc's
  mainnet launch.
</Info>

## Next steps

<CardGroup cols={2}>
  <Card title="How it works" icon="route" href="/overview/how-it-works">
    Walk through a single deposit, from prompt to USDC in position.
  </Card>

  <Card title="Trust & security model" icon="shield" href="/overview/trust-security">
    What the agent can do, what it can't, and why.
  </Card>

  <Card title="Try on testnet" icon="play" href="/quickstart/try-on-testnet">
    Get testnet USDC and run your first route in five minutes.
  </Card>

  <Card title="System overview" icon="layers" href="/architecture/system-overview">
    The deterministic loop, smart accounts, and Circle Gateway.
  </Card>
</CardGroup>