Simon Willison’s Weblog

HeatMapAPI (via) Cool (or should that be hot?) API for adding heat maps to any Google Maps application.

Posted 19th July 2008 at 11:46 pm

Recent articles

Embracing the parallel coding agent lifestyle - 5th October 2025
Designing agentic loops - 30th September 2025
Claude Sonnet 4.5 is probably the "best coding model in the world" (at least for now) - 29th September 2025

google-maps 53 heatmaps 3 mapping 54

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