Stemlen is a product-first software company behind Fairlx, the first open-source, usage-based project management and billing platform.

We believe modern teams deserve tools that are transparent, developer-friendly, and built for growth. That’s why we focus on building infrastructure that combines real-time data, automation, and total billing clarity.

Our flagship product, Fairlx, helps teams:

Track every task and API request in real time

Automate billing with usage-based pricing

See exactly what they’re paying for — no guesswork

Self-host or use in the cloud, with full open-source access

We’re proudly lean, engineering-led, and driven by product integrity.
Join us in reshaping how SaaS teams work and pay — fairly.

🔗 Visit: https://fairlx.com

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Stemlen

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