Pricing

from $0.50 / 1,000 markets

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Kalshi and Polymarket Scraper

Try for free

Prediction market data from Kalshi and Polymarket in one table, with the probability, bid and ask, volume and close date of each market. Search by keyword, filter by volume or closing date, and schedule runs to see which probabilities moved since the last one.

Pricing

from $0.50 / 1,000 markets

Rating

0.0

(0)

Developer

deriverge s.r.o.

Actor stats

Bookmarked

Total users

Monthly active users

2 days ago

Last modified

2026-09-30

Changes

liquidityUsd is null on Kalshi rows, because Kalshi's API reports a liquidity of 0 for every market.

Fixes

Kalshi searches by keyword, category or preset read all open events, 12,601 on 30 September 2026. They used to read only the first 4,000 events of every status and missed most matching markets.
Polymarket rows carry the tags of the market, and category is the first of them, so Categories and the presets also find Polymarket markets.
Kalshi rows from a run without a search phrase or category have category and tags. Before, most of them had neither.
A Polymarket market found by the search phrase and again in the market list is returned and charged once.

2026-09-28

Changes

Kalshi's combination markets, whose tickers start with KXMVE and which carry no price or probability, are left out when no series or event is requested.
The search phrase can also be sent as q, search, term or searchTerm, names that AI agents often use.

2026-09-27

Changes

watchKey has a new name, watchName. Inputs with the old name still work.

2026-09-24

Changes

Lower prices on every plan for markets, order books and probability moves.

2026-09-06

Fixes

Snapshots for change tracking are kept in a store that belongs to this actor, so saving them no longer fails on a permission error.

2026-09-03

Features

First public version: Kalshi and Polymarket markets in one table, optional order books, a Weather preset for Kalshi's daily temperature series, change tracking between runs with the biggest probability moves, and the first two rows of every run free.

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