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Juan de Pablos

Building pay-per-event data APIs on official sources — SEC filings, trademark offices, clinical trials, public registries. Agent-native (MCP). Everything ships with runnable examples.

Tracking New Patent Filings Without an API Key (Google Patents Has a Hidden XHR Endpoint)

Tracking New Patent Filings Without an API Key (Google Patents Has a Hidden XHR Endpoint)

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3 min read

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Catawiki Publishes Its Expert Estimates in the Page JSON. I Built a Deal Finder on Top

Catawiki Publishes Its Expert Estimates in the Page JSON. I Built a Deal Finder on Top

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3 min read
One API Call to Price Any Luxury Watch (Median, Percentiles, Market Depth)

One API Call to Price Any Luxury Watch (Median, Percentiles, Market Depth)

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3 min read
I Built a Bot That Finds Underpriced Game Consoles on Vinted (Using Real eBay Sold Prices)

I Built a Bot That Finds Underpriced Game Consoles on Vinted (Using Real eBay Sold Prices)

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4 min read
How to Track US Startup Funding Rounds in Real Time (Before TechCrunch Writes About Them)

How to Track US Startup Funding Rounds in Real Time (Before TechCrunch Writes About Them)

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4 min read
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