Betty

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What to bet on

Finance:
- https://FXMarketAPI.com
- https://marketstack.com/documentation
- https://api-portal.etoro.com/
- Challenge example: "The USD-HUF exchange rate will increase between 2021.05.01. 17:00 and 2021.05.01. 18:00" - the rate observation at the second timestamp will be greater than it is at the first timestamp.
Active users/players on different platforms
- Challenge example: "The number of active players at chess.com will decrease between 2021.05.01. 17:00 and 2021.05.01. 17:05" - the active player count at the second timestamp will be less than it is at the first timestamp. - https://www.chess.com/news/view/published-data-api
- Players per country on chess.com: https://www.chess.com/news/view/published-data-api#pubapi-endpoint-country-players
- https://www.npmjs.com/package/chess-web-api
Weather (on earth, on mars)
- on Earth: https://openweathermap.org/current
- on Mars: https://api.nasa.gov/
Air quality
- https://openweathermap.org/api/air-pollution
Covid / Pandemic
- https://www.coronatracker.com/ (API: https://documenter.getpostman.com/view/11073859/Szmcbeho?version=latest)
We could also allow gambling on other people success/failure. So say: I believe this player will lose his next five bets.
Football
Politics
World events
Entertainment
Betting on vendor meetings bullshit bingo
Betting on your own health
Betting on house prices
Betting on news: in the sense, will there come news about this figure in the next five minutes.
Transport
- https://api.tfl.gov.uk/
- https://developers.google.com/transit/gtfs-realtime
Wikipedia edits

Platforms

Metaforecast - Aggregator of some of the forecasting platforms, has a nice overview of the rest:
Ergo
- https://ergo.ought.org/en/latest/index.html
Foretold:
- https://github.com/foretold-app/foretold
- https://www.foretold.io/
GJopen:
- https://www.gjopen.com/challenges/53-think-again-with-adam-grant
- https://www.gjopen.com/challenges/50-the-economist-the-world-in-2021
Metaculus:
- https://www.metaculus.com/questions/
Predictit:
- https://www.predictit.org/
PolyMarket:
- https://polymarket.com/

Public data streams

For inspiration:

Special waggers:

Unusual bets:

https://mashable.com/2007/07/02/prediction-markets/?europe=true
https://www.rd.com/list/weird-things-to-bet-on/
https://sports.borgataonline.com/en/blog/weird-things-you-can-bet-on-in-the-absence-of-sports/: temperature, primary election voting, television ratings, esports
osbscure sports: https://thebettingedge.co.uk/fancy-betting-on-sports-youve-probably-never-heard-of/

Operations