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What is a Builder?

In the context of Polymarket, a “builder” refers to a person, group, or organization that routes orders from their customers to Polymarket. For example, if you’ve created a unique front end that allows your users to place trades on Polymarket via your system, then this guide is for you.

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Builder Program Benefits

The Builders Program currently provides two main benefits:

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1. Polygon Relayer Access

We expose our Polygon relayer to builders, allowing you to route onchain transactions through our infrastructure. This means:
  • Polymarket pays for gas fees for onchain operations (token approvals, position redemptions, wallet deployment, etc.)
  • Execute transactions through two wallet types: Safe Wallets and Proxy Wallets
  • Both wallet types support all relayer operations including ERC20 approvals, CTF redemptions, and other smart contract interactions
Wallet Types:
  • Safe Wallets - Gnosis Safe-based proxy wallets that require explicit deployment before use
  • Proxy Wallets - Custom Polymarket proxy wallets that auto-deploy on first transaction for Magic Link users who authenticate via email/Google on Polymarket.com

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2. Trading Attribution

When posting orders to our CLOB exchange, you can add custom headers that identify you as a builder. This enables Polymarket to clearly attribute orders coming from your platform. High volume builders will be showcased in our upcoming Builder Leaderboard allowing Builders to compete for grants from Polymarket.

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Getting Started

Explore the following guides to integrate with the Builders Program:
  • Builder Keys - Learn how to generate your Builder Keys and manage your builder profile
  • Builder Signing Server - Set up a secure server for remote signing of builder headers
  • CLOB Client - Initialize the CLOB client with user credentials and builder config for order placement
  • Order Attribution - Learn how to attribute customer orders to your builder account
  • Relayer Client - Use the Polygon relayer for gasless transactions and Safe wallet deployment
  • Example Implementations - Complete Next.js demo applications

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Relayer Client Libraries

The Builders Program provides official client libraries in multiple languages:

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Tracking Builder Performance

Monitor builder’s performance programmatically using our Data API:
  • Leaderboard API - Get aggregated builder rankings for a time period
  • Volume API - Get daily time-series volume data for trend analysis
You can also view your public profile and stats on the Builder Leaderboard.