What is a Market Maker?
A Market Maker (MM) on Polymarket is a sophisticated trader who provides liquidity to prediction markets by continuously posting bid and ask orders. By “laying the spread,” market makers enable other users to trade efficiently while earning the spread as compensation for the risk they take. Market makers are essential to Polymarket’s ecosystem:- Provide liquidity across all markets
- Tighten spreads for better user experience
- Enable price discovery through continuous quoting
- Absorb trading flow from retail and institutional users
Getting Started
To become a market maker on Polymarket:- Contact Polymarket - Email [email protected] to request acces to RFQ API
- Complete setup - Deploy wallets, fund with USDCe, set token approvals
- Connect to data feeds - WebSocket for orderbook, RTDS for low-latency data
- Start quoting - Post orders via CLOB REST API or respond to RFQ requests
Available Tools
By Action Type
Setup
Deposits, token approvals, wallet deployment, API keys
Trading
CLOB order entry, order types, quoting best practices
RFQ API
Request for Quote system for responding to large orders
Data Feeds
WebSocket, RTDS, Gamma API, on-chain data
Inventory Management
Split, merge, and redeem outcome tokens
Liquidity Rewards
Earn rewards for providing liquidity
Quick Reference
| Action | Tool | Documentation |
|---|---|---|
| Deposit USDCe | Bridge API | Bridge Overview |
| Approve tokens | Relayer Client | Setup Guide |
| Post limit orders | CLOB REST API | CLOB Client |
| Respond to RFQ | RFQ API | RFQ Overview |
| Monitor orderbook | WebSocket | WebSocket Overview |
| Low-latency data | RTDS | Data Feeds |
| Split USDCe to tokens | CTF / Relayer | Inventory |
| Merge tokens to USDCe | CTF / Relayer | Inventory |