Pricing

from $2.00 / 1,000 results

Polymarket & Kalshi Prediction Market Scraper

Scrape live prediction market odds from Polymarket and Kalshi in one normalized dataset: prices, implied probability, bid/ask, volume, liquidity, close dates, and settled winners. Search by keyword; filter by category, status, volume, or end date. Fast public-API scraping — no browser, no login.

Pricing

from $2.00 / 1,000 results

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Developer

Banea Teodor

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Bookmarked

Total users

Monthly active users

4 days ago

Last modified

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.

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