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

# CLOB overview

> High-performance order matching for prediction markets, powered by Jump Protocol.

NOTE: THIS DOCS IS CURRENTLY BEING TESTED ON SEPOLINA TEST NETWORK WHEN LAUCHED THE NETWORK WILL BE SET TO BASE MAINNET.

The **Central Limit Order Book (CLOB)** is a high-performance order matching engine for prediction markets on pumpEVM.fun. Built on **Jump Protocol**, it provides institutional-grade order execution with sub-millisecond latency and high throughput.

The CLOB is available exclusively on [pred.pumpevm.fun](https://pred.pumpevm.fun) and powers advanced trading features including limit orders, market orders, stop-loss, take-profit, and real-time order book management.

## Architecture

```text theme={null}
┌─────────────────────────────────────────────────────────────────────┐
│                    CLOB Client — Prediction Markets                 │
├─────────────────────────────────────────────────────────────────────┤
│                         Jump Protocol                               │
│             High-performance order matching engine                  │
│        Sub-millisecond latency · 10,000+ orders/sec                 │
├─────────────────────────────────────────────────────────────────────┤
│                       Order Book Engine                             │
│     Limit · Market · Stop orders                                    │
│     Matching · Execution · Position management                      │
├─────────────────────────────────────────────────────────────────────┤
│                        WebSocket API                                │
│     Order book · Trades · Positions · Account                       │
└─────────────────────────────────────────────────────────────────────┘
```

## Key features

| Feature                   | Description                                      |
| ------------------------- | ------------------------------------------------ |
| Jump Protocol integration | Ultra-fast order matching engine.                |
| Sub-millisecond latency   | Orders matched in \< 300 ms.                     |
| 10,000+ orders/sec        | High-throughput capacity.                        |
| MEV-resistant             | Prevents front-running.                          |
| Cross-chain support       | Order routing across multiple EVM networks.      |
| Competitive fees          | 0.02% maker / 0.05% taker.                       |
| Real-time updates         | WebSocket streaming for book, trades, positions. |
| Advanced order types      | Limit, market, stop-loss, take-profit.           |

## CLOB vs AMM

| Feature         | CLOB (Jump Protocol)     | AMM (Uniswap) |
| --------------- | ------------------------ | ------------- |
| Order types     | Limit, market, stop-loss | Swap only     |
| Price discovery | Order book               | Pool formula  |
| Slippage        | Low (visible in book)    | Variable      |
| Liquidity       | Market-maker provided    | LP provided   |
| Latency         | Sub-millisecond          | 5–15 seconds  |
| Control         | Full order control       | Limited       |
| Fees            | 0.02% / 0.05%            | 1%            |
| MEV resistance  | High                     | Low to medium |

## Explore the API

<CardGroup cols={2}>
  <Card title="Order types" icon="list" href="/developers/clob/order-types">
    Limit, market, stop-loss, and take-profit payloads.
  </Card>

  <Card title="WebSocket API" icon="plug-zap" href="/developers/clob/websocket">
    Channels, subscriptions, and streaming messages.
  </Card>

  <Card title="Order management" icon="settings" href="/developers/clob/order-management">
    Place, cancel, and query orders.
  </Card>

  <Card title="Market data" icon="bar-chart" href="/developers/clob/market-data">
    Order books, depth, summaries, and listings.
  </Card>

  <Card title="REST endpoints" icon="server" href="/developers/clob/rest">
    Coming Q4 2026.
  </Card>

  <Card title="Integration guide" icon="code" href="/developers/clob/integration">
    JavaScript and TypeScript examples.
  </Card>

  <Card title="Errors & rate limits" icon="triangle-alert" href="/developers/clob/errors">
    Codes, responses, and throttling rules.
  </Card>
</CardGroup>