CzechFabric introduces TONE, an open-source data format optimised for LLMs, reducing token usage by 40–60% while keeping data structured and human-readable. Built in Prague 🇨🇿, designed for developers worldwide. TONE powers CzechFabric’s public-data APIs and SDKs connecting cities, AI, and open innovation.
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Maker
📌
When I started CzechFabric, I wanted to make real-world data more usable for AI, not just for experiments, but for production.
TONE was born out of that frustration: JSON was too heavy, YAML too inconsistent.
Now it’s a simple, open format that helps AI understand data more quickly and cost-effectively.
Built in Prague 🇨🇿, open to everyone.
Would love to hear your feedback!
Impossibly Dope Innovations
I first caught Abdulbasit's work from a talk they gave here in Prague. Talented dude doing great work. 👏
Swytchcode
Congrats on the launch!
This is amazing. Can you show an exact use case?
I see the mention of public-data APIs; what kind of city or open innovation data are you providing first?