Dome

Prediction Markets

Retrieve Kalshi and Polymarket prediction-market data through Sponge using Dome, including markets, order books, and trading activity.

Available through Sponge

x402

About Dome

Review the Service identity, supported languages, protocol versions, and source metadata discovered by the directory.

Service details

Service Id

ae25fa6e-3dc5-4a2e-9835-599c0d5ba256

Service origin

https://api.paysponge.com

ListedSeptember 24, 2026, 11:47 PM

Last checkedNovember 8, 2026, 11:10 PM

Protocol details

SourceOpenAPI

Endpoints

Endpoint details are saved from the OpenAPI document. Authentication requirements and prices are advertised information, not a verified payment or access guarantee. The document may contain additional endpoints.Open OpenAPI document

GET/kalshi/markets

GET /kalshi/markets

GET/kalshi/orderbooks

GET /kalshi/orderbooks

GET/kalshi/trades

GET /kalshi/trades

GET/matching-markets/sports

GET /matching-markets/sports

GET/polymarket/activity

GET /polymarket/activity

GET/polymarket/events

GET /polymarket/events

GET/polymarket/markets

GET /polymarket/markets

GET/polymarket/orderbooks

GET /polymarket/orderbooks

GET/polymarket/orders

GET /polymarket/orders

GET/polymarket/wallet

GET /polymarket/wallet

Agent payments

These payment protocols and options are advertised by the Service for agent purchases.

x402

Advertises x402 payments for one or more endpoints. Check the endpoint documentation for authentication requirements.