burn0
Lightweight cost observability for every API call in your stack. Track LLM tokens, database ops, and external services from your terminal.
Track the costs of every API call in your code to understand where your expenses are coming from.
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Free · no card · unsubscribe anytimeLightweight cost observability for every API call in your stack. Track LLM tokens, database ops, and external services from your terminal.
burn0 has 44 stars on GitHub. It has been forked 3 times. burn0 is written mainly in TypeScript. It has been in active development since 2026. burn0 is available under the MIT license. Its main topics are ai, anthropic, api-monitoring, cost-tracking.
What is burn0?
Lightweight cost observability for every API call in your stack. Track LLM tokens, database ops, and external services from your terminal.
Is burn0 open source?
burn0 is an open-source project. It is released under the MIT license.
Is burn0 free?
Yes. burn0 is free and open source — you can use, modify and self-host it.
What license does burn0 use?
burn0 is available under the MIT license.
What language is burn0 written in?
burn0 is written mainly in TypeScript.
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