Trading platform

Dome

Prediction-market APIs and SDK for developers. One integration for Polymarket and Kalshi data — historical order books, real-time trade webhooks and WebSockets, and backtesting — via REST plus TypeScript and Python SDKs.

Dome preview
Fees0%
Markets3
CustodySelf-custody
AccessMobile · Web

Overview

Prediction-market APIs and SDK for developers. One integration for Polymarket and Kalshi data — historical order books, real-time trade webhooks and WebSockets, and backtesting — via REST plus TypeScript and Python SDKs.

How it works

  • Integrate once to pull data and execute across Polymarket and Kalshi.
  • Access historical order books and pricing for research and backtesting.
  • Stream real-time trades and market moves via webhooks and WebSockets.
  • Build with REST plus TypeScript and Python SDKs.

Supported markets

  • Polymarket
  • Kalshi
  • More platforms coming
Freefree sign-up

Sign up free — developers are onboarded on a schedule. Y Combinator-backed (F25).

Get Dome
  • Unified SDK for multiple prediction markets
  • Historical order-book snapshots & pricing
  • Real-time trades via webhooks & WebSockets
  • Backtesting and market-analysis support
  • REST API + TypeScript & Python SDKs
Author
Dome
Website
domeapi.io
Added
Today