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John Leslie

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Google Places API Now Costs $275/Month — Here's a Free Alternative
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Google Places API Now Costs $275/Month — Here's a Free Alternative

#api #webdev #opensource #javascript
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2 min read
Free Google Places API Alternative: 37 Business Categories, No API Key
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Free Google Places API Alternative: 37 Business Categories, No API Key

#api #googlecloud #webdev #opensource
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1 min read
I made a free REST API that turns 'find cafes in Paris' into structured JSON
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I made a free REST API that turns 'find cafes in Paris' into structured JSON

#api #openstreetmap #webdev #typescript
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2 min read
How We Made 61% on Hormuz in 9 Days
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How We Made 61% on Hormuz in 9 Days

#prediction #finance #geopolitics #data
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2 min read
Polymarket Wants Back Into the US. Here's What Changes If They Get In.
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Polymarket Wants Back Into the US. Here's What Changes If They Get In.

#predictionmarkets #polymarket #finance #cryptocurrency
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3 min read
The Cop Left the Building: CFTC Shrinks 24% While Prediction Markets Hit $60B
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The Cop Left the Building: CFTC Shrinks 24% While Prediction Markets Hit $60B

#predictionmarkets #fintech #regulation #datascience
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3 min read
Are Prediction Markets Well-Calibrated? I Analyzed 7,661 Resolved Polymarket Markets
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Are Prediction Markets Well-Calibrated? I Analyzed 7,661 Resolved Polymarket Markets

#datascience #statistics #fintech #analysis
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3 min read
The Regulatory Storm: 7 Bills, 3 Bans, and the Future of Prediction Markets
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The Regulatory Storm: 7 Bills, 3 Bans, and the Future of Prediction Markets

#news #predictionmarkets #regulation #finance
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2 min read
When Prediction Markets Become the News: Shoot-and-Kill Orders, Fox News Deals, and John Oliver
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When Prediction Markets Become the News: Shoot-and-Kill Orders, Fox News Deals, and John Oliver

#news #predictionmarkets #geopolitics #fintech
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3 min read
The Soldier Who Bet on a Secret War: First DOJ Prediction Market Prosecution
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The Soldier Who Bet on a Secret War: First DOJ Prediction Market Prosecution

#news #predictionmarkets #crypto #law
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2 min read
Kalshi at $22B, Polymarket Raises $400M, and Our Portfolio Is Up 33.6%
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Kalshi at $22B, Polymarket Raises $400M, and Our Portfolio Is Up 33.6%

#predictionmarkets #fintech #startup #investing
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5 min read
The Hair Dryer That Won $34,000: This Week in Prediction Markets
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The Hair Dryer That Won $34,000: This Week in Prediction Markets

#predictionmarkets #blockchain #security #fraud
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4 min read
Prediction Markets Are on Fire: $540M on 2028, Arbitrage, and a Finland Surge — Issue #1
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Prediction Markets Are on Fire: $540M on 2028, Arbitrage, and a Finland Surge — Issue #1

#predictionmarkets #crypto #data #investing
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4 min read
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