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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 and powers advanced trading features including limit orders, market orders, stop-loss, take-profit, and real-time order book management.

Architecture

Key features

CLOB vs AMM

Explore the API

Order types

Limit, market, stop-loss, and take-profit payloads.

WebSocket API

Channels, subscriptions, and streaming messages.

Order management

Place, cancel, and query orders.

Market data

Order books, depth, summaries, and listings.

REST endpoints

Coming Q4 2026.

Integration guide

JavaScript and TypeScript examples.

Errors & rate limits

Codes, responses, and throttling rules.