# Changelog of Polymarket & Kalshi Prediction Market Scraper (`teodor_banea/polymarket-kalshi-prediction-market-scraper`) Actor

- **URL**: https://apify.com/teodor\_banea/polymarket-kalshi-prediction-market-scraper/changelog.md
- **Full Actor documentation**: https://apify.com/teodor\_banea/polymarket-kalshi-prediction-market-scraper.md

## Changelog

### 0.1.0 — 2026-08-27

Initial release.

- Polymarket + Kalshi in one normalized dataset (one row per market, identical shape).
- Keyword search: server-side relevance on Polymarket (`/public-search`), word-match scan on Kalshi.
- Filters: category/tag (cross-platform), status (active / resolved / all), minimum volume, minimum liquidity (Polymarket only — Kalshi publishes none), close-date window.
- Prices: yes/no, per-outcome, bid/ask, spread, last trade, 24h change (Polymarket), implied probability.
- Activity: total and 24h volume, open interest (Kalshi), liquidity (Polymarket).
- Settlement: Kalshi official results; Polymarket winners derived from settled prices.
- Result cap split evenly across platforms; unlimited runs capped at 10,000 markets.
- State persists across migrations; per-platform pagination streams resume from the request queue.

Verified against live APIs on 2026-08-27. Notable upstream discrepancies documented in `src/constants.ts`: Kalshi returns `*_dollars`/`*_fp` decimal strings (not the integer cents in older docs), and `liquidity_dollars` is unpopulated (always zero) on all public endpoints.