> ## Documentation Index
> Fetch the complete documentation index at: https://docs-staging.centuari.finance/llms.txt
> Use this file to discover all available pages before exploring further.
# Idle Yield Router
> Automatic deployment of idle capital to maximize capital efficiency via the Idle Yield Router
## Overview
Idle Yield Router automatically deploys idle capital (unmatched lend orders, withdrawal buffers) to low-risk yield protocols. When orders match or withdrawals are needed, capital is instantly recalled.
**Capital Efficiency**: Instead of capital sitting idle in the order book earning 0%, Idle Yield Router puts it to work while maintaining instant availability.
## The Problem
In an order book model, capital often sits idle:
| Scenario | Traditional Result |
| ---------------------------- | ------------------ |
| Lend order waiting for match | 0% yield |
| Vault withdrawal buffer | 0% yield |
| Partial fill remainder | 0% yield |
| Between maturities | 0% yield |
This idle capital represents significant opportunity cost.
## The Solution
Idle capital automatically deployed to yield sources
Capital recalled instantly when needed
Only battle-tested, liquid protocols
See exactly where capital is deployed
## How It Works
You deposit USDC and place a lend order
If no immediate match, order waits in book
After short delay, capital routes to yield protocols
Capital earns yield from Aave, Compound, etc.
When a borrower matches your order...
Capital recalled from yield protocol in same transaction
Your fixed-rate position begins, keeping the interim yield
## Yield Sources
Capital is deployed to a curated list of low-risk protocols:
| Protocol | Asset | Typical Yield | Risk Level |
| ------------ | ----- | ------------- | ---------- |
| Aave V3 | USDC | 2-5% | Very Low |
| Compound V3 | USDC | 2-4% | Very Low |
| MakerDAO DSR | DAI | 3-5% | Very Low |
| Spark | DAI | 3-5% | Very Low |
**Conservative Selection**: Idle Yield Router only uses established, audited protocols with high liquidity. Riskier high-yield opportunities are not included.
### Selection Criteria
Protocols must meet all criteria:
* [ ] \$100M+ TVL
* [ ] Multiple security audits
* [ ] 1+ year operating history
* [ ] Instant or near-instant withdrawals
* [ ] No lock-up periods
* [ ] Sufficient liquidity for recall
## Capital Flow
```
User Deposit ($100,000 USDC)
│
▼
┌─────────────────┐
│ Order Book │ ← Order waiting for match
│ (Your Order) │
└────────┬────────┘
│
▼ (After 5 min delay)
┌─────────────────┐
│ Idle Yield Router │ ← Routes to highest-yield eligible protocol
└────────┬────────┘
│
┌────┴────┬─────────┐
▼ ▼ ▼
┌───────┐ ┌───────┐ ┌───────┐
│ Aave │ │Compound│ │ DSR │
│ 3.5% │ │ 3.2% │ │ 4.0% │ ← DSR selected (highest)
└───────┘ └───────┘ └───┬───┘
│
When order matches...
│
▼ (Instant recall)
┌─────────────────┐
│ Order Book │ ← Match executed
│ (Matched!) │
└────────┬────────┘
│
▼
┌─────────────────┐
│ Fixed-Rate │ ← Your Centuari position begins
│ Position (CBT) │
└─────────────────┘
```
## Configuration
### For Individual Users
Idle Yield Router is **enabled by default** for:
* Unmatched lend orders
* Cancelled order refunds (brief period)
You can disable it in settings if you prefer capital to remain idle.
### Protocol-Managed
Idle Yield Router is currently in v0. The protocol manages all parameters including allowed protocols, deployment thresholds, and diversification limits. Once Mutual Fund Vaults are production-ready, idle capital will be allocated into Centuari Mutual Fund Vaults, also managed by the protocol.
## Yield Distribution
Who keeps the yield from Idle Yield Router?
**You keep 100% of interim yield**
Example:
* Deposit \$10,000 USDC, place lend order
* Order waits 5 days before matching
* Idle Yield Router earned 0.05% during wait (\~\$5)
* You keep the \$5 (added to your CBT position)
**Yield accrues to vault**
Interim yield increases vault share price, benefiting all depositors proportionally.
## Recall Mechanics
When capital is needed, Idle Yield Router executes instant recall:
### Single-Transaction Recall
All happens atomically:
1. Order match initiated
2. Capital withdrawn from yield protocol
3. Transfer to order book
4. Match executed
5. CBT issued to lender
If any step fails, entire transaction reverts.
### Gas Handling
* Recall gas covered by protocol
* No additional cost to users
* Included in standard gasless experience
## Risk Considerations
### Protocol Risk
Idle Yield Router uses only established protocols, but smart contract risk always exists. The protocol maintains insurance coverage for yield source failures.
| Risk | Mitigation |
| ---------------------- | ---------------------------------- |
| Smart contract exploit | Insurance fund, diversification |
| Protocol pause | Multiple fallback protocols |
| Liquidity crunch | Only protocols with deep liquidity |
### Opportunity Cost Risk
In rare cases, recall might happen at unfavorable moment:
* Protocol has temporary withdrawal fee
* Gas spike makes recall expensive
Protocol absorbs these costs; users are not affected.
## Monitoring
### Dashboard View
See your capital's current deployment:
```
Your Idle Capital: $50,000 USDC
Currently Deployed:
├── Aave V3: $30,000 (60%) @ 3.5% APY
├── Compound V3: $20,000 (40%) @ 3.2% APY
└── Total earning: ~$4.50/day
Accumulated Yield: $127.50 (25 days)
```
### Yield History
Track interim yields earned over time:
| Period | Idle Days | Yield Earned | Effective APY |
| -------- | --------- | ------------ | ------------- |
| March | 12.5 | \$145.20 | 3.4% |
| February | 8.2 | \$89.50 | 3.2% |
| January | 15.0 | \$178.00 | 3.5% |
## FAQs
No. Idle Yield Router operates asynchronously. Your order is always available for matching at your specified rate. Capital is recalled instantly in the same transaction as the match.
Protocols are selected for deep liquidity. If somehow a recall fails, the protocol uses reserve funds to complete your match while waiting for withdrawal.
The protocol manages all Idle Yield Router parameters. Individual users use protocol defaults.
Likely yes, as investment income. Consult a tax professional for your jurisdiction.
Idle Yield Router selects the highest-yielding eligible protocol at deployment time, subject to diversification limits.
Learn how capital is automatically deployed
Understand the instant recall mechanism