Polymarket & Kalshi Odds Scraper — Prices & Arbitrage

Scrape live prediction-market odds from Polymarket and Kalshi in one run: yes/no prices, implied probabilities, spread, 24h volume, liquidity and close time for every open market, plus cross-venue matches with the net arbitrage return. Public APIs, no login, JSON output.

Publisher description, verbatim

Last 7 dayson this actor

12new rivals on Polymarket

Each one reaches followers by email the morning after.Follow this actor

Key figures30 readings

Price / 1k$3.00per 1,000 results

Users / 30d2↑ 1 over 30 readings

Users, all time3↑ 1 over 30 readings

Runs / 30d27↑ 6 over 30 readings

Runs / user / mo13.5runs per monthly user

Standing

#20of 184

on Polymarket, by users in the last 30 days among actors classified to this platform.

Recorded changes

No price, README, schema or grade changes in the last 30 days · followers get the next one by email.

History

30 readings since 2026-09-25

Users / 30d30 readings

Users, all time30 readings

Runs / 30d30 readings

Standing30 readings

Alternatives on Polymarket

The actors either side of #20 of 184, ranked by users in the last 30 days. Same platform, adjacent adoption — the comparable set.

all 184 on Polymarket →

Sort

#	Actor	Grade	Price / 1k	Users /30d	Success	Rating	Age	Fresh
15	Polymarket Weather Markets API — Daily Temperature Oddsbigdavidson	—	EVT$1.00 /1k market-recordgood price	24 total	—	—	29d	fresh
16	Polymarket Longshot Screener: Cheap Futures with Depthbright_oven	—	RES$5.00 /1khigh price	23 total	—	—	4m	aging
17	Polymarket Markets Scraper: Prices, Liquidity & Order Booksbright_oven	—	RES$2.00 /1kgood price	23 total	—	—	4m	aging
18	Prediction Market Arb Scanner — Polymarket + Kalshi + PredictItcongism	—	EVT$50.00 /1k apify-actor-startsteep price	23 total	—	—	3m	aging
19	Polymarket Markets Scrapercongism	—	RES$1.00 /1kgood price	273 total	—	—	7m	aging
20	Polymarket & Kalshi Odds Scraper — Prices & Arbitragegalterapp	—	RES$3.00 /1kfair price	23 total	—	—	52d	aging	This
21	Stablecoin Peg Monitor (on-chain DEX pools, multi-chain)galterapp	—	RES$10.00 /1ksteep price	23 total	—	—	52d	aging
22	Polymarket Markets Scraperindomitably_doctor	—	EVT$2.00 /1k result-itemgood price	23 total	—	—	3m	aging
23	Polymarket Odds, Volume & Top Markets by Topicjpmarketdata	—	EVT$20.00 /1k topic-analyzedfair price	23 total	—	—	4m	aging
24	Polymarket Arbitrage Finder — Groups Priced Under $1jpmarketdata	—	EVT$20.00 /1k topic-analyzedfair price	23 total	—	—	2m	aging
25	Polymarket vs Kalshi Arbitrage — Same Question, Two Pricesjpmarketdata	—	EVT$20.00 /1k pair-pricedfair price	23 total	—	—	2m	fresh

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