Introduction

Prediction Router is a unified REST API that lets you search markets, place orders, and manage your account across Polymarket and Kalshi with a single Bearer token.

What you can do

• Search markets — query open, closed, or resolved markets across any platform
• Place and cancel orders — trade on Polymarket and Kalshi
• Read account data — balances, positions, and transaction history
• Connect platforms — link your existing platform credentials once; Prediction Router handles authentication for every call

Base URL

https://prediction-router-api.kalashshah47.workers.dev

Authentication

All endpoints (except POST /v1/auth/register) require a Bearer token:

Authorization: Bearer pr_...

Get your API key on the dashboard.

Next steps

• Quick Start — register and make your first API call in under 2 minutes
• API Reference — full endpoint docs
• Platforms — supported platforms and capabilities