> For the complete documentation index, see [llms.txt](https://paragon-protocol.gitbook.io/paragon-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://paragon-protocol.gitbook.io/paragon-protocol/core-products/paragon-shield.md).

# Paragon Shield

Paragon Shield is Paragon’s order-flow protection and private routing layer.

When enabled, trades are routed through a private relay and executed via protected pathways instead of being exposed to the public mempool.

### Private Execution & Protected Routing

Paragon Shield combines:

* private order flow
* batching
* solver-based routing
* aggregated liquidity (including 1inch)

to improve execution quality while reducing exposure to MEV.

***

### What Makes Paragon Different

Paragon is not limited to a single liquidity source.

Trades can be routed across:

* Paragon liquidity pools
* external liquidity (via 1inch integration)
* solver-optimized paths

This allows:

* better pricing
* deeper liquidity access
* more efficient execution

***

### What You Get

* **No public exposure before execution**\
  → orders are not broadcast to the public mempool
* **Reduced sandwich risk**\
  → batching removes typical frontrunning timing
* **Execution validation**\
  → trades must meet minimum output or revert / fallback
* **User-controlled execution modes**\
  → choose between standard and advanced routing

***

### How It Works

#### 1. Private Submission

Two modes are available:

**Classic Swap**

* routed via private relay
* not exposed publicly before execution

**Flow (Intent Mode)**

* user signs an intent
* trades can be batched and optimized

***

#### 2. Routing & Optimization

Solvers search for the best execution path across:

* Paragon pools
* external DEXs (via 1inch)
* multi-hop routes

All routes are:

* validated
* optimized
* protected

***

#### 3. Execution

* trades are executed atomically
* reduced frontrunning window
* consistent execution rules

***

#### 4. Settlement

On-chain settlement:

* verifies execution outcome
* records execution data
* logs Proof-of-Best-Execution (PoBE)

***

### Aggregation Layer

Paragon integrates external liquidity via:

👉 1inch

This enables:

* access to deeper liquidity
* cross-DEX routing
* improved pricing beyond native pools

***

### Multi-Venue Routing (Evolution)

* **Phase 1** → 1inch aggregation
* **Phase 2** → Paragon + external routing
* **Phase 3** → solver-level optimization

***

### Privacy Levels

**Shield Lite (Default)**

* private relay
* anti-sandwich batching
* fastest execution

**Shield Private**

* full intent mode
* no public mempool exposure

**Shield Stealth (Advanced)**

* delayed route visibility
* additional protection for large trades

***

### Fees & Gas

* no additional Shield fee
* standard swap fees apply

**Flow mode**

* optional protocol cut may apply at execution level

**Gas**

* similar to standard swaps
* may increase slightly during batching

***

### Compatibility

* tokens → ERC-20 compatible
* wallets → any EVM wallet
* chain → BNB Chain (testnet → mainnet)

***

### Limitations

* does not remove market volatility risk
* trades may revert if minimum output is not met
* execution depends on available liquidity

***

### Proof-of-Best-Execution (PoBE)

Each trade records:

* minimum expected output
* actual execution output
* execution improvement (if any)

This is displayed as:

👉 “You saved X%”

and is fully verifiable on-chain.

***

### Security

* verified smart contracts
* multisig + timelock controls
* solver allowlisting and monitoring
* emergency pause mechanisms

***

### Integration

Paragon Shield connects to:

* Flow (execution layer)
* governance systems
* Agent Volt (automation layer)

***

### Summary

Paragon Shield provides:

* private transaction routing
* MEV risk reduction
* solver-based execution
* aggregated liquidity access

Paragon Shield is the protection layer that enables safer and more efficient execution across the protocol.